419 Solidity Jobs - Page 8

**Immediate joining ( WFH ) InfraSingularity aims to revolutionize the Web3 ecosystem as a pioneering investor and builder. Our long-term vision is to establish ourselves as the first-of-its-kind in this domain, spearheading the investment and infrastructure development for top web3 protocols. At IS, we recognize the immense potential of web3 technologies to reshape industries and empower individuals. By investing in top web3 protocols, we aim to fuel their growth and support their journey towards decentralization. Additionally, our plan to actively build infrastructure with these protocols sets us apart, ensuring that they have the necessary foundations to operate in a decentralized manner effectively. We embrace collaboration and partnership as key drivers of success. By working alongside esteemed web3 VCs like WAGMI and more, we can leverage their expertise and collective insights to maximize our impact. Together, we are shaping the future of the Web3 ecosystem, co-investing, and co-building infrastructure that accelerates the adoption and growth of decentralized technologies. Together with our portfolio of top web3 protocols (Lava, Sei, and Anoma) and our collaborative partnerships with top protocols (EigenLayer, Avail, PolyMesh, and Connext), we are creating a transformative impact on industries, society, and the global economy. Join us on this groundbreaking journey as we reshape the future of finance, governance, and technology. About the Role We are looking for a Senior Site Reliability Engineer (SRE) to take ownership of our multi-cloud blockchain infrastructure and validator node operations. This role is critical in ensuring high performance, availability, and resilience across a range of L1/L2 blockchain protocols. If you're passionate about infrastructure automation, system reliability, and emerging Web3 technologies, we’d love to talk. What You’ll Do Own and operate validator nodes across multiple blockchain networks, ensuring uptime, security, and cost-efficiency. Architect, deploy, and maintain infrastructure on AWS, GCP, and bare-metal for protocol scalability and performance. Implement Kubernetes-native tooling (Helm, FluxCD, Prometheus, Thanos) to manage deployments and observability. Collaborate with our Protocol R&D team to onboard new blockchains and participate in testnets, mainnets, and governance. Ensure secure infrastructure with best-in-class secrets management (HashiCorp Vault, KMS) and incident response protocols. Contribute to a robust monitoring and alerting stack to detect anomalies, performance drops, or protocol-level issues. Act as a bridge between software, protocol, and product teams to communicate infra constraints or deployment risks clearly. Continuously improve deployment pipelines using Terraform, Terragrunt, GitOps practices. Participate in on-call rotations and incident retrospectives, driving post-mortem analysis and long-term fixes. Our Stack Cloud & Infra: AWS, GCP, bare-metal Containerization: Kubernetes, Helm, FluxCD IaC: Terraform, Terragrunt Monitoring: Prometheus, Thanos, Grafana, Loki Secrets & Security: HashiCorp Vault, AWS KMS Languages: Go, Bash, Python, Typescript Blockchain: Ethereum, Polygon, Cosmos, Solana, Foundry, OpenZeppelin What You Bring 4+ years of experience in SRE/DevOps/Infra roles—ideally within FinTech, Cloud, or high-reliability environments. Proven expertise managing Kubernetes in production at scale. Strong hands-on experience with Terraform, Helm, GitOps workflows . Deep understanding of system reliability, incident management, fault tolerance, and monitoring best practices. Proficiency with Prometheus and PromQL for custom dashboards, metrics, and alerting. Experience operating secure infrastructure and implementing SOC2/ISO27001-aligned practices . Solid scripting in Bash, Python, or Go . Clear and confident communicator—capable of interfacing with both technical and non-technical stakeholders. Nice-to-Have First-hand experience in Web3/blockchain/crypto environments . Understanding of staking, validator economics, slashing conditions , or L1/L2 governance mechanisms. Exposure to smart contract deployments or working with Solidity, Foundry, or similar toolchains. Experience with compliance-heavy or security-certified environments (SOC2, ISO 27001, HIPAA). Why Join Us? Work at the bleeding edge of Web3 infrastructure and validator tech. Join a fast-moving team that values ownership, performance, and reliability. Collaborate with protocol engineers, researchers, and crypto-native teams. Get exposure to some of the most interesting blockchain ecosystems in the world.

Design and implement blockchain solutions for the telecom industry. Develop smart contracts, integrate blockchain with telecom systems, and ensure secure, decentralized data handling and transactions for enhanced business processes.

:. Soul AI is a pioneering company founded by IIT Bombay and IIM Ahmedabad alumni, with a strong founding team from IITs, NITs, and BITS. We specialize in delivering high-quality human-curated data, AI-first scaled operations services, and more. . We are looking for a skilled Blockchain Developer to work on developing decentralized applications and smart contracts. If you're passionate about blockchain technology and want to work on cutting-edge projects, this is the role for you!. Key Responsibilities:. Design and develop smart contracts and decentralized applications (dApps). Work with Ethereum, Solana, or other blockchain platforms. Write secure, optimized, and efficient code for blockchain-based applications. Collaborate with cross-functional teams to implement blockchain solutions. Required Qualifications:. 2+ years of experience in blockchain development. Proficiency in Solidity, smart contracts, and blockchain platforms like Ethereum or Hyperledger. Familiarity with cryptographic principles and consensus algorithms. Why Join Us. Competitive pay (‚1200/hour). Flexible hours. Remote opportunity. NOTEPay will vary by project and typically is up to Rs. 1200 per hour (if you work an average of 3 hours every day that could be as high as Rs. . Shape the future of AI with Soul AI!.

:. Soul AI is a pioneering company founded by IIT Bombay and IIM Ahmedabad alumni, with a strong founding team from IITs, NITs, and BITS. We specialize in delivering high-quality human-curated data, AI-first scaled operations services, and more. . We are looking for a skilled Blockchain Developer to work on developing decentralized applications and smart contracts. If you're passionate about blockchain technology and want to work on cutting-edge projects, this is the role for you!. Key Responsibilities:. Design and develop smart contracts and decentralized applications (dApps). Work with Ethereum, Solana, or other blockchain platforms. Write secure, optimized, and efficient code for blockchain-based applications. Collaborate with cross-functional teams to implement blockchain solutions. Required Qualifications:. 2+ years of experience in blockchain development. Proficiency in Solidity, smart contracts, and blockchain platforms like Ethereum or Hyperledger. Familiarity with cryptographic principles and consensus algorithms. Why Join Us. Competitive pay (‚1200/hour). Flexible hours. Remote opportunity. NOTEPay will vary by project and typically is up to Rs. 1200 per hour (if you work an average of 3 hours every day that could be as high as Rs. . Shape the future of AI with Soul AI!.

:. Soul AI is a pioneering company founded by IIT Bombay and IIM Ahmedabad alumni, with a strong founding team from IITs, NITs, and BITS. We specialize in delivering high-quality human-curated data, AI-first scaled operations services, and more. . We are looking for a skilled Blockchain Developer to work on developing decentralized applications and smart contracts. If you're passionate about blockchain technology and want to work on cutting-edge projects, this is the role for you!. Key Responsibilities:. Design and develop smart contracts and decentralized applications (dApps). Work with Ethereum, Solana, or other blockchain platforms. Write secure, optimized, and efficient code for blockchain-based applications. Collaborate with cross-functional teams to implement blockchain solutions. Required Qualifications:. 2+ years of experience in blockchain development. Proficiency in Solidity, smart contracts, and blockchain platforms like Ethereum or Hyperledger. Familiarity with cryptographic principles and consensus algorithms. Why Join Us. Competitive pay (‚1200/hour). Flexible hours. Remote opportunity. NOTEPay will vary by project and typically is up to Rs. 1200 per hour (if you work an average of 3 hours every day that could be as high as Rs. . Shape the future of AI with Soul AI!.

:. Soul AI is a pioneering company founded by IIT Bombay and IIM Ahmedabad alumni, with a strong founding team from IITs, NITs, and BITS. We specialize in delivering high-quality human-curated data, AI-first scaled operations services, and more. . We are looking for a skilled Blockchain Developer to work on developing decentralized applications and smart contracts. If you're passionate about blockchain technology and want to work on cutting-edge projects, this is the role for you!. Key Responsibilities:. Design and develop smart contracts and decentralized applications (dApps). Work with Ethereum, Solana, or other blockchain platforms. Write secure, optimized, and efficient code for blockchain-based applications. Collaborate with cross-functional teams to implement blockchain solutions. Required Qualifications:. 2+ years of experience in blockchain development. Proficiency in Solidity, smart contracts, and blockchain platforms like Ethereum or Hyperledger. Familiarity with cryptographic principles and consensus algorithms. Why Join Us. Competitive pay (‚1200/hour). Flexible hours. Remote opportunity. NOTEPay will vary by project and typically is up to Rs. 1200 per hour (if you work an average of 3 hours every day that could be as high as Rs. . Shape the future of AI with Soul AI!.

Job Title: Blockchain Developer Location: Noida (On-site) Experience: 2+ Years Joining: Immediate Joiners Preferred Job Description: We are actively looking for a Blockchain Developer with a minimum of 2 years of hands-on experience in designing, developing, and deploying decentralized applications (dApps). The ideal candidate should be passionate about blockchain technology and eager to work in a fast-paced, innovation-driven environment. Key Responsibilities: Develop and maintain smart contracts using Solidity or similar languages. Build and deploy decentralized applications (dApps) on Ethereum or other blockchain platforms. Collaborate with front-end and back-end developers to integrate blockchain functionalities. Work with Web3.js, Ether.js, or similar frameworks for blockchain interactions. Ensure security best practices in smart contract development. Maintain technical documentation and write clean, scalable code. Required Skills: Strong knowledge of Ethereum , Solidity , and smart contract development . Experience with Web3.js , Node.js , Truffle , Hardhat , or Ganache . Familiarity with DeFi , NFTs , and blockchain architecture . Good understanding of cryptographic principles and data structures. Experience with version control tools like Git. Preferred: Prior experience in token development (ERC-20, ERC-721) . Exposure to other blockchains like Polygon, Solana, or BSC is a plus. Knowledge of IPFS and decentralized storage.

We are looking for a passionate RUST Developer to join our team. Responsibilities: Design, develop, test, and maintain Rust-based applications and services. Build backend infrastructure components, microservices, and APIs with Rust. Contribute to blockchain- and Web3-focused modules, including smart-contract integrations and distributed-ledger interactions. Implement cryptographic algorithms and security primitives in production code. Collaborate with frontend engineers on web-app integrations and with DevOps on CI/CD pipelines. Diagnose and resolve performance, scalability, and reliability issues. Write clear, maintainable documentation for code, APIs, and operational runbooks. Requirements: 1–3 years of professional Rust development experience. Strong proficiency with Rust language, tooling (Cargo, rustc), and common crates/ecosystem. Solid understanding of backend fundamentals: networking, concurrency, databases, and microservices architecture. Familiarity with cryptographic concepts (e.g., hashing, public-key cryptography, signatures). Experience building or integrating blockchain/Web3 components (e.g., Ethereum, Substrate, Solana SDKs). Comfortable writing automated tests (unit, integration) and using Git. Bachelor’s degree in Computer Science, Engineering, or equivalent practical experience. Preferred Qualifications: Prior hands-on work with smart contracts (Solidity, Ink!, or similar). Experience with containerization (Docker) and orchestration (Kubernetes). Knowledge of zero-knowledge proofs (zkSNARKs, zkSTARKs) or other advanced crypto protocols. Exposure to CI/CD systems (GitHub Actions, GitLab CI, Jenkins). Active contributor to open-source Rust or blockchain projects. What We Offer: Competitive Salary: upto 24 LPA (based on experience) Opportunity to work on real-time projects Learning and development opportunities Friendly and collaborative work environment How to Apply: Send your resume to hr@wisewaytec.com with the subject “Application for RUST DEVELOPER” Schedule: Day shift Monday to Friday Morning shift We look forward to building the future of secure, high-performance systems with you at Wiseway Tec! Job Types: Full-time, Permanent Pay: ₹70,000.00 - ₹200,000.00 per month Schedule: Day shift Monday to Friday Morning shift Night shift Work Location: In person

🧠 Responsibilities: Develop and deploy smart contracts using Solidity on EVM-compatible chains (Ethereum, BSC, Polygon, etc.) Work with Solana using tools like Rust and Anchor framework Integrate contracts with decentralized applications (DApps) using Web3.js, Ethers.js, or Solana Web3 Collaborate with frontend/backend teams to build complete DeFi platforms (staking, swaps, farming, token vesting, etc.) Ensure smart contract security, performance, and gas optimization ✅ Requirements: 3–4 years of proven experience in blockchain development Proficient in Solidity, Hardhat/Truffle, and EVM-compatible chains Hands-on experience with Solana development using Rust Familiarity with DApp integrations and common DeFi protocols Understanding of GraphQL, QuickNode, and blockchain API integration ✨ Preferred: Experience in deploying projects to mainnet Knowledge of IPFS, The Graph, and Layer 2 solutions Previously worked on real-world DeFi or NFT platforms

Position : Lead Software Engineer ✅ Key Responsibilities 🚀 Architecture & System Design · Define scalable, secure, and modular architectures. · Implement high-availability patterns (circuit breakers, autoscaling, load balancing). · Enforce OWASP best practices, role-based access, and GDPR/PIPL compliance. 💻 Full-Stack Development · Oversee React Native & React.js codebases; mentor on state management (Redux/MobX). · Architect backend services with Node.js/Express; manage real-time layers (WebSocket, Socket.io). · Integrate third-party SDKs (streaming, ads, offerwalls, blockchain). 📈 DevOps & Reliability · Own CI/CD pipelines and Infrastructure-as-Code (Terraform/Kubernetes). · Drive observability (Grafana, Prometheus, ELK); implement SLOs and alerts. · Conduct load testing, capacity planning, and performance optimization. 👥 Team Leadership & Delivery · Mentor 5–10 engineers, lead sprint planning, code reviews, and Agile ceremonies. · Collaborate with cross-functional teams to translate roadmaps into deliverables. · Ensure on-time feature delivery and manage risk logs. 🔍 Innovation & Continuous Improvement · Evaluate emerging tech (e.g., Layer-2 blockchain, edge computing). · Improve development velocity through tools (linters, static analysis) and process optimization. 📌 What You’ll Need · 5+ years in full-stack development, 2+ years in a lead role · Proficient in: React.js, React Native, Node.js, Express, AWS, Kubernetes · Strong grasp of database systems (PostgreSQL, Redis, MongoDB) · Excellent communication and problem-solving skills · Startup or gaming experience a bonus 🎯 Bonus Skills · Blockchain (Solidity, smart contracts), streaming protocols (RTMP/HLS) · Experience with analytics tools (Redshift, Metabase, Looker) · Prior exposure to monetization SDKs (PubScale, AdX)

**Immediate joining ( WFH ) InfraSingularity aims to revolutionize the Web3 ecosystem as a pioneering investor and builder. Our long-term vision is to establish ourselves as the first-of-its-kind in this domain, spearheading the investment and infrastructure development for top web3 protocols. At IS, we recognize the immense potential of web3 technologies to reshape industries and empower individuals. By investing in top web3 protocols, we aim to fuel their growth and support their journey towards decentralization. Additionally, our plan to actively build infrastructure with these protocols sets us apart, ensuring that they have the necessary foundations to operate in a decentralized manner effectively. We embrace collaboration and partnership as key drivers of success. By working alongside esteemed web3 VCs like WAGMI and more, we can leverage their expertise and collective insights to maximize our impact. Together, we are shaping the future of the Web3 ecosystem, co-investing, and co-building infrastructure that accelerates the adoption and growth of decentralized technologies. Together with our portfolio of top web3 protocols (Lava, Sei, and Anoma) and our collaborative partnerships with top protocols (EigenLayer, Avail, PolyMesh, and Connext), we are creating a transformative impact on industries, society, and the global economy. Join us on this groundbreaking journey as we reshape the future of finance, governance, and technology. About the Role We are looking for a Senior Site Reliability Engineer (SRE) to take ownership of our multi-cloud blockchain infrastructure and validator node operations. This role is critical in ensuring high performance, availability, and resilience across a range of L1/L2 blockchain protocols. If you're passionate about infrastructure automation, system reliability, and emerging Web3 technologies, we’d love to talk. What You’ll Do Own and operate validator nodes across multiple blockchain networks, ensuring uptime, security, and cost-efficiency. Architect, deploy, and maintain infrastructure on AWS, GCP, and bare-metal for protocol scalability and performance. Implement Kubernetes-native tooling (Helm, FluxCD, Prometheus, Thanos) to manage deployments and observability. Collaborate with our Protocol R&D team to onboard new blockchains and participate in testnets, mainnets, and governance. Ensure secure infrastructure with best-in-class secrets management (HashiCorp Vault, KMS) and incident response protocols. Contribute to a robust monitoring and alerting stack to detect anomalies, performance drops, or protocol-level issues. Act as a bridge between software, protocol, and product teams to communicate infra constraints or deployment risks clearly. Continuously improve deployment pipelines using Terraform, Terragrunt, GitOps practices. Participate in on-call rotations and incident retrospectives, driving post-mortem analysis and long-term fixes. Our Stack Cloud & Infra: AWS, GCP, bare-metal Containerization: Kubernetes, Helm, FluxCD IaC: Terraform, Terragrunt Monitoring: Prometheus, Thanos, Grafana, Loki Secrets & Security: HashiCorp Vault, AWS KMS Languages: Go, Bash, Python, Typescript Blockchain: Ethereum, Polygon, Cosmos, Solana, Foundry, OpenZeppelin What You Bring 4+ years of experience in SRE/DevOps/Infra roles—ideally within FinTech, Cloud, or high-reliability environments. Proven expertise managing Kubernetes in production at scale. Strong hands-on experience with Terraform, Helm, GitOps workflows. Deep understanding of system reliability, incident management, fault tolerance, and monitoring best practices. Proficiency with Prometheus and PromQL for custom dashboards, metrics, and alerting. Experience operating secure infrastructure and implementing SOC2/ISO27001-aligned practices. Solid scripting in Bash, Python, or Go. Clear and confident communicator—capable of interfacing with both technical and non-technical stakeholders. Nice-to-Have First-hand experience in Web3/blockchain/crypto environments. Understanding of staking, validator economics, slashing conditions, or L1/L2 governance mechanisms. Exposure to smart contract deployments or working with Solidity, Foundry, or similar toolchains. Experience with compliance-heavy or security-certified environments (SOC2, ISO 27001, HIPAA). Why Join Us? Work at the bleeding edge of Web3 infrastructure and validator tech. Join a fast-moving team that values ownership, performance, and reliability. Collaborate with protocol engineers, researchers, and crypto-native teams. Get exposure to some of the most interesting blockchain ecosystems in the world.

📍 Location: Onsite (Vadodara, Gujarat) 💼 Job Type: Full-time We are looking for a Solidity Developer with hands-on experience in building complex MLM staking contracts, DeFi protocols, NFT marketplaces, Launchpads, and full-fledged DApps. If you're passionate about Web3 and can integrate smart contracts into modern frontend frameworks like React and Next.js – we want to talk to you. --- 🛠️ Key Responsibilities Design, develop, and deploy Solidity smart contracts for MLM, staking, DeFi, and NFT platforms. Collaborate with frontend engineers to integrate smart contracts with React/Next.js apps using Ethers.js or Web3.js. Write and execute tests using Hardhat or Truffle to ensure security and functionality. Optimize smart contract gas usage and follow best practices in secure smart contract development. Participate in full DApp development lifecycle – from ideation to deployment. Work with Node.js (Typescript) web3 backend tasks when required. (Bonus) Build and deploy Telegram Mini Apps and web UIs using React. --- 🔍 Requirements 2+ years of experience in Solidity and Ethereum development. Strong understanding of MLM smart contracts, ICOs, staking, DeFi protocols, and NFT standards (ERC-721, ERC-1155). Hands-on experience with Hardhat or Truffle, and Ethers.js or Web3.js with Typescript. Ability to integrate smart contracts into the frontend and debug Web3 interactions using web3.js/ethers.js/wagmi/reown --- ⭐ Preferred (Not Mandatory) Experience with Telegram Mini Apps development. Knowledge of frontend development using React/NextJs, and responsive DApp UIs.

Job Title: Blockchain Developer Location: Pan India Experience: 6+ Years Notice Period: Immediate or up to 30 Days Job Description We are looking for a highly skilled and experienced Blockchain Developer to join our growing team. The ideal candidate will have a strong background in smart contract development, with hands-on expertise in Ethereum standards like ERC-721A , and experience deploying secure and scalable blockchain solutions. Key Responsibilities Design, develop, test, and deploy smart contracts primarily using Solidity. Implement and optimize ERC-721A logic for efficient NFT transactions. Work closely with frontend/backend teams to integrate smart contract functionality. Manage smart contract deployment on Ethereum or EVM-compatible networks. Conduct code reviews and ensure security best practices in smart contract development. Troubleshoot and resolve issues related to blockchain applications. Stay updated with emerging trends in blockchain and NFT standards. Required Skills Strong programming experience in Solidity, Web3.js, or Ethers.js. In-depth knowledge of Ethereum and token standards like ERC-20, ERC-721, and especially ERC-721A. Experience with smart contract deployment tools like Hardhat, Truffle, or Remix. Good understanding of blockchain architecture, consensus algorithms, and DApp development. Familiarity with gas optimization and smart contract security vulnerabilities (e.g., reentrancy, front-running, overflow). Experience with version control (Git) and agile development practices. Preferred Qualifications Experience in integrating smart contracts with Web3 frontends. Exposure to other blockchain platforms (e.g., Polygon, Binance Smart Chain, Solana) is a plus. Certifications in Blockchain Technology (optional but desirable).

We are looking for a Solidity Developer with hands-on experience in building complex MLM staking contracts, DeFi protocols, NFT marketplaces, Launchpads, and full-fledged DApps. If you're passionate about Web3 and can integrate smart contracts into modern frontend frameworks like React and Next.js – we want to talk to you. --- 🛠️ Key Responsibilities Design, develop, and deploy Solidity smart contracts for MLM, staking, DeFi, and NFT platforms. Collaborate with frontend engineers to integrate smart contracts with React/Next.js apps using Ethers.js or Web3.js. Write and execute tests using Hardhat or Truffle to ensure security and functionality. Optimize smart contract gas usage and follow best practices in secure smart contract development. Participate in full DApp development lifecycle – from ideation to deployment. Work with Node.js (Typescript) web3 backend tasks when required. (Bonus) Build and deploy Telegram Mini Apps and web UIs using React. --- 🔍 Requirements 2+ years of experience in Solidity and Ethereum development. Strong understanding of MLM smart contracts, ICOs, staking, DeFi protocols, and NFT standards (ERC-721, ERC-1155). Hands-on experience with Hardhat or Truffle, and Ethers.js or Web3.js with Typescript. Ability to integrate smart contracts into the frontend and debug Web3 interactions using web3.js/ethers.js/wagmi/reown --- ⭐ Preferred (Not Mandatory) Experience with Telegram Mini Apps development. Knowledge of frontend development using React/NextJs, and responsive DApp UIs. --- 📍 Location: Onsite (Vadodara, Gujarat) 💼 Job Type: Full-time 💰 Compensation: Competitive, based on experience

We are looking for a skilled Rust Developer with strong experience in blockchain development on the Solana platform. In this role, you will design, develop, and maintain on-chain programs using Rust, and integrate smart contracts with frontend or backend systems.. This opportunity is ideal for developers passionate about decentralized technologies, Web3, and cutting-edge blockchain applications.. Required Skills. 5 to 8 years of experience in software development.. Strong expertise in Rust programming.. Proven experience with Solana blockchain and the Anchor framework.. Understanding of SPL token standards.. Familiarity with Solana APIs and SDKs for integrating smart contracts.. Experience in React.js or Java is a plus.. Exposure to cross-chain protocols and other blockchain ecosystems.. Background in cryptography or distributed systems is an added advantage.. Show more Show less

Design & dev blockchain solutions-Hyperledger fabric Build & maintain smart contracts & apps. Conduct thorough testing & debugging Document dev processes, code changes, & application config. MEAN_MERN Stack cryptographic principles & consensus algo.

Developer Relations Manager About HeLa Labs HeLa Labs (https://www.helalabs.com) is a dynamic team of innovative developers, engineers, and designers dedicated to building transformative technology that drives the adoption of Web3. Our goal is to build a secure layer 1 blockchain for real-world adoption. We’re looking for a proactive and creative Developer Relations Manager to Build, nurture, and expand a vibrant developer community in India. What Will You Do at HeLa Labs? Build, nurture, and expand a vibrant developer community in India. Organize and lead meetups, hackathons, AMAs, workshops, and other community events (in-person and online). Serve as a visible and approachable representative of the ecosystem in India. Onboard new developers and provide technical guidance on using our blockchain tools, SDKs, and infrastructure. Collect feedback from developers to help improve product, tooling, and documentation. Actively engage on developer channels such as Discord, Telegram, and GitHub. Collaborate with local blockchain projects, startups, universities, and developer groups. Support strategic partners with technical onboarding and community alignment. Create and deliver technical tutorials, workshops, and presentations. Write technical blog posts, guides, and developer documentation in collaboration with the Singapore core team. Work closely with the core engineering and marketing teams in Singapore to align on product messaging, community goals, and ecosystem strategy. Share regular updates and insights from the Indian ecosystem with the core team. Our Ideal Candidates Would Have 3+ years experience in software development, ideally with exposure to blockchain technologies (e.g., Solidity, Rust, Web3.js, EVM chains). Previous experience in community building, developer advocacy, or education preferred. Excellent communication and presentation skills. Strong organizational and project management skills. Passion for blockchain, open-source development, and decentralized communities. Based in India with flexibility to collaborate with a Singapore-based team (some overlap in working hours required) What else are waiting for you? Competitive salary 100% remote and flexible Be a part of the future of financial technology by doing something meaningful. Great career development opportunities in a growing company Passionate and collaborative team Family-like environment Up-level your technical skills and capital market knowledge Multi-cultural environment Ready to make your mark in Web3? Join HeLa Labs today. What you do now defines the future you create.

We're Hiring: QA Engineer Company: Bingo Singapore Pte. Ltd. Location: On-site Experience: 2+ years in QA (Web3/Blockchain preferred) About the Role: We’re building cutting-edge Node.js applications integrated with blockchain (Ethereum/Smart Contracts/Web3), and we need a meticulous QA Engineer to ensure flawless functionality, security, and performance. You’ll test backend APIs, smart contracts, and decentralized systems while collaborating with Node.js and blockchain developers. Key Responsibilities: ✔ Blockchain-Specific Testing: Test smart contracts (Solidity/Rust) for vulnerabilities (reentrancy, overflow) using tools like Hardhat, Truffle, or Foundry . Validate Web3.js/ethers.js integrations with Node.js backends. Verify wallet connections (MetaMask, WalletConnect) and transaction flows . ✔ Node.js Backend Testing: Test REST/GraphQL APIs (Postman, Supertest) built with Express/NestJS. Automate API tests (using Mocha/Chai, Jest, or Karate ). Monitor WebSocket connections for real-time blockchain events. ✔ Security & Performance: Conduct penetration testing for Node.js APIs (OWASP Top 10). Load-test blockchain interactions (e.g., high TPS scenarios with JMeter). Audit data consistency between on-chain and off-chain (DB) systems. ✔ Tools & Collaboration: Use GitHub Actions/GitLab CI for QA pipelines. Document bugs in JIRA/Linear with reproducible steps. Work with DevOps to test containerized (Docker) deployments. Skills & Requirements: ✅ Must-Have: 2+ years in QA for Node.js/backend systems . Hands-on experience with blockchain testing (Smart Contracts, Web3, RPC nodes). Proficiency in API testing (Postman, Swagger) and SQL/NoSQL validation. Familiarity with CI/CD and version control (Git). ✅ Nice-to-Have: Knowledge of security tools (Slither, MythX) for smart contracts. Experience with performance testing (k6, Locust). Basic scripting in JavaScript/Python . Job Types: Full-time, Permanent Pay: From ₹15,000.00 per month Schedule: Monday to Friday Morning shift Weekend availability Experience: QA/QC: 2 years (Required) Language: English (Preferred) Work Location: In person

Smacoteq is a Blockchain platform to digitalize trade documents and to tokenize trade assets to facilitate trade finance. Smacoteq’s solution revolutionizes international maritime trade through blockchain technology, focusing on replacing traditional, paper-based trade processes with digital solutions. The company prioritizes critical documents such as Bills of Lading, aiming to reduce costs, minimize fraud risks, enhance security, and trade finance digitalization. About the Role We are seeking a passionate and entrepreneurial Blockchain Full Stack Developer to join our dynamic startup. This is a unique opportunity to work at the forefront of blockchain innovation, contributing to a decentralized platform designed to revolutionize the maritime and trade finance industry. If you're a self-starter with a strong technical foundation and a desire to work with a dynamic team, we want to hear from you! Key Responsibilities Blockchain Development: Design, develop, and deploy secure and efficient smart contracts on blockchain platforms. Frontend Development: Build and maintain user interfaces using Next.js, React.js, and other frameworks. Backend Development: Develop robust backend systems using Node.js and other technologies in the MERN stack. Integration: Seamlessly integrate smart contracts with frontend and backend applications. Collaboration: Work closely with the product, design, and business teams to create end-to-end features that solve real-world problems. Entrepreneurial Contribution: Bring innovative ideas and an entrepreneurial mindset to shape the product and its growth trajectory. Requirements Technical Skills: Proven experience with blockchain development, including smart contracts (Solidity, Ethereum, or similar). Proficiency in Next.js, React.js, Node.js, and the MERN stack. Familiarity with decentralized storage solutions and web3 libraries. Experience: 5+ years of full stack Blockchain development Entrepreneurial Mindset: Demonstrated ability to work independently, think strategically, and innovate. Problem-Solving Skills: Strong analytical thinking and the ability to troubleshoot complex issues. Communication: Excellent written and verbal communication skills to collaborate in a remote-first environment. What We Offer Engagement with Equity in the France-based company. Exposure to the global market and experience working in a diverse team. Impact: Contribute to building solutions that address real-world challenges in trade finance and maritime logistics. Flexibility: Work remotely with a global team that is passionate about blockchain innovation and disrupting the maritime industry. Show more Show less

We are hiring a Full Stack Blockchain Developer with at least 2 years of hands-on experience. The ideal candidate is someone who’s confident in Solidity , smart contract development, and has actively contributed to blockchain projects. If you've worked on networks like Solana , Polygon , or other emerging chains — that's a big plus. You’ll be joining a fast-moving team building decentralized applications and blockchain-based solutions. Strong communication skills and a demonstrable portfolio are essential. Key Responsibilities: Develop, test, and deploy secure smart contracts using Solidity . Build and maintain full stack dApps using technologies like React.js , Node.js , and Web3.js/Ethers.js . Integrate smart contracts with web platforms and handle backend logic and APIs. Optimize and troubleshoot blockchain node interactions and off-chain components. Write clean, modular, and well-documented code. Collaborate with designers, frontend/backend teams, and project managers. Keep up with the latest trends in Web3 and blockchain ecosystems. Required Skills & Qualifications: Minimum 2 years of experience as a full stack developer with blockchain expertise. Proficient in Solidity and Ethereum standards (ERC-20, ERC-721, etc.). Experience working on live blockchain projects (portfolio/GitHub links are mandatory). Hands-on experience with Ethereum , Polygon , or Solana (preferred). Familiarity with tools like Hardhat , Truffle , Remix , and wallets like MetaMask . Good understanding of Web3.js , Ethers.js , or Moralis SDK . Skilled in JavaScript , React , Node.js , and RESTful APIs. Strong debugging and problem-solving skills. Must have excellent communication skills (written and verbal). Preferred Qualifications: Experience with Solana , BNB Chain , Avalanche , or other L1/L2 chains. Knowledge of decentralized storage (IPFS), subgraphs (The Graph), and oracle services. Familiarity with DevOps, Docker, or CI/CD pipelines. Contributions to open-source or Web3 hackathons. Job Types: Full-time, Part-time, Permanent Pay: ₹20,000.00 - ₹35,000.00 per month Supplemental Pay: Overtime pay Performance bonus Experience: blockchain development: 2 years (Required) Location: Mohali, Punjab (Required) Work Location: In person

Blockchain & dApp Developer FullTime & Remote We are looking for a highly skilled Blockchain & dApp developer to join our team and drive the development of our next-generation financial technology products. As a Blockchain & dApp Developer, you will play a pivotal role in the design, development, and deployment of innovative blockchain solutions, working on projects that are integral to our mission, including the architecturing and development of decentralised finance (DeFi) platforms, smart contract writing, AA smart wallets, and the architecture of cross-chain applications. Thus, the ideal candidate will have a strong background in smart contract development and decentralised application (dApp) development, focusing on DeFi platforms and cross-chain integration. Key Responsibilities: ● Smart Contract Development: Write, test, and deploy secure smart contracts in Solidity, primarily for the Ethereum network, ensuring seamless cross-chain compatibility. ● dApp Development: Lead the design and development of decentralised applications (dApps) on Ethereum, Binance Smart Chain, and Solana. ● DeFi Solutions: Architect and develop innovative DeFi and synthetic financial solutions, integrating them with existing protocols. ● Security and Performance: Maintain high standards of blockchain security and performance throughout the development lifecycle. ● Innovation Leadership: Collaborate with cross-functional teams to brainstorm and develop new features, focusing on both user experience and technical implementation. ● Independent Development: Take ownership of multi-chain application architecture and development from day one, delivering high-quality solutions with minimal supervision. ● Secondary Responsibilities: Contribute to the development of blockchain modules using Cosmos SDK where necessary, while focusing primarily on Ethereum-based solutions. Qualifications: ● Minimum of 3 years of experience in blockchain development, with a solid track record of writing verified, secure smart contracts in Solidity currently in use. ● Proven and extensive hands-on experience in developing and deploying dApps on the Ethereum Network and other key blockchains such as Binance and Solana. ● Multi-chain Applications: Ability to independently architect and develop multi-chain ● Strong background in software security and bug hunting, with a focus on blockchain technologies. ● Proficiency in Solidity is essential. Proficiencies in Go, Rust, and C++ are an added advantage. ● Extensive experience in Ethereum and familiarity with other key blockchains like Binance, Solana, and Cosmos. ● Proven track record in developing and deploying dApps and DeFi platforms. ● Strong understanding of blockchain security best practices and data protection. ● Demonstrated ability to lead complex projects from conception through to completion. ● Demonstrable contributions to Web3 open-source projects. ● Advanced analytical skills with the ability to solve complex technical challenges in blockchain development. Essential Proficiencies: ● Solidity ● Vyper ● JavaScript, react.js, typescript ● web3.js library Soft Skills: ● Communication: Excellent communication skills, with the ability to clearly articulate complex technical concepts to a diverse audience. ● Team Collaboration: Strong collaborative skills, with a track record of successfully working in cross-functional teams. ● Problem-Solving: A proactive approach to problem-solving, with the ability to navigate and resolve technical issues effectively. Why You Should Join Us. ● Innovation-Driven Culture: Be part of a team that values creativity, innovation, and continuous improvement. ● Career Growth: Opportunities for professional development, including certifications, conferences, and potential for career advancement. ● Global Impact: An opportunity to impact the global space ● Benefits: ● Competitive pay, bonus, and benefit package tailored to your skills and experience. ● Remote work flexibility with a supportive and collaborative work environment.● Access to learning and development resources to enhance your skills and career. ● It offers a remarkable chance to work on projects that have a tangible impact on global financial systems and wealth creation. ● We are committed to building a diverse and inclusive team that reflects the global community we serve. ● A dynamic and innovative work environment where you can make a real impact on the future of financial technology. ● Opportunities for career growth and development within a rapidly expanding global company. Industry: ● Financial Technology Services Employment Type: ● Full-time ● Remote About Us: UGG International is a global leader in fintech innovation, dedicated to building a future where wealth is accessible to all. Our mission is to leverage cutting-edge technologies such as blockchain and artificial intelligence to create financial solutions that drive generational wealth across the globe. The Ultainfinity Blockchain, our flagship project, exemplifies our commitment to excellence, being an application-specific blockchain built on the Cosmos SDK designed to lead the industry in security and innovation. Show more Show less

Developer Community Manager About HeLa Labs HeLa Labs (https://www.helalabs.com) is a dynamic team of innovative developers, engineers, and designers dedicated to building transformative technology that drives the adoption of Web3. Our goal is to build a secure layer 1 blockchain for real-world adoption. We’re looking for a proactive and creative Developer Community Manager to Build, nurture, and expand a vibrant developer community in India. What Will You Do At HeLa Labs? Build, nurture, and expand a vibrant developer community in India. Organize and lead meetups, hackathons, AMAs, workshops, and other community events (in-person and online). Serve as a visible and approachable representative of the ecosystem in India. Onboard new developers and provide technical guidance on using our blockchain tools, SDKs, and infrastructure. Collect feedback from developers to help improve product, tooling, and documentation. Actively engage on developer channels such as Discord, Telegram, and GitHub. Collaborate with local blockchain projects, startups, universities, and developer groups. Support strategic partners with technical onboarding and community alignment. Create and deliver technical tutorials, workshops, and presentations. Write technical blog posts, guides, and developer documentation in collaboration with the Singapore core team. Work closely with the core engineering and marketing teams in Singapore to align on product messaging, community goals, and ecosystem strategy. Share regular updates and insights from the Indian ecosystem with the core team. Our Ideal Candidates Would Have 3+ years experience in software development, ideally with exposure to blockchain technologies (e.g., Solidity, Rust, Web3.js, EVM chains). Previous experience in community building, developer advocacy, or education preferred. Excellent communication and presentation skills. Strong organizational and project management skills. Passion for blockchain, open-source development, and decentralized communities. Based in India with flexibility to collaborate with a Singapore-based team (some overlap in working hours required) What else are waiting for you? Competitive salary 100% remote and flexible Be a part of the future of financial technology by doing something meaningful. Great career development opportunities in a growing company Passionate and collaborative team Family-like environment Up-level your technical skills and capital market knowledge Multi-cultural environment Ready to make your mark in Web3? Join HeLa Labs today. What you do now defines the future you create. Show more Show less

About KeyValue KeyValue is a trusted product engineering partner for Start Ups & Scale Ups - unlocking their passion, developing ideas, and creating abundant value to all stakeholders in the ecosystem. We have ideated, conceived, strategized and built some of the globe’s most innovative Fintech, Payments, Financial Services, Digital Commerce, Madtech, Edtech, Socialtech, Logistics, High Technology, Blockchain, Crypto, NFT and Healthcare companies, helping them conceive, scale, pivot, and enhance their businesses. KeyValue’s mission is to be the world’s most trusted product development hub – delivering high-value outcomes for start-ups & scale-ups – with a talented skilled team – in a thriving and inclusive culture. Our inclusive culture is engaging & experiential, creating an environment to learn & collaborate with freedom to think, create, explore, grow and thrive. An ownership mindset with growth orientation forms the bedrock of exceptional client success! We are looking for an experienced and passionate Blockchain Engineer with 3+ years of experience to join our team. The ideal candidate is highly proactive, a problem-solver, and has a strong interest in learning and implementing AI and ML alongside blockchain technologies. What you will do: Design, develop, and maintain blockchain-based applications and smart contracts. Implement security protocols, cryptography, and consensus algorithms. Collaborate with cross-functional teams to integrate blockchain solutions into existing systems. Optimise blockchain-based systems for performance, scalability, and reliability. Conduct research to explore and propose improvements to existing blockchain frameworks. Stay updated on the latest blockchain trends and technologies. What makes you a great fit: Bachelor’s degree in Computer Science, Information Technology, or a related field. 3+ years of experience in blockchain development, including hands-on experience with frameworks like Ethereum, Hyperledger, or Solana. Proficiency in programming languages such as Solidity, Rust, JavaScript, or Python. Experience with Web3.js, Express.js, Truffle, or other blockchain development tools. Strong understanding of smart contracts, consensus algorithms, and decentralised applications (dApps). Knowledge of cryptography, security protocols, and data structures. Excellent problem-solving skills and a proactive approach to challenges. Strong written and verbal communication skills for team collaboration and technical documentation. Familiarity with machine learning and AI concepts, and a willingness to integrate these technologies with blockchain solutions. Knowledge of cloud platforms like AWS, Azure, or GCP for deploying blockchain solutions. Experience in developing or integrating NFTs, DeFi, or other blockchain-based use cases. At KeyValue, you’ll be part of a dynamic team working on innovative projects that leverage cutting-edge blockchain technology. We provide an environment that encourages creativity, growth, and collaboration, helping you stay at the forefront of tech advancements. Show more Show less

We are seeking a MERN Stack Developer who also brings hands-on experience in blockchain development. You will be responsible for developing scalable web applications and integrating decentralized technologies such as smart contracts, NFTs, or blockchain protocols. Job Title : MERN Stack Developer (With Blockchain Experience) Experience : 1-3 years Job Location : Madurai. Skills : MongoDB, React(js), Express(js),Node(js), Solidity, Solanum, Smart contract, Ethereum, Binance Smart chain. Requirements: Proficiency in MERN Stack (MongoDB, Express.js, React.js, Node.js) Experience with Ethereum or other blockchain platforms (e.g., Solana, Polygon, Binance Smart Chain) Familiarity with smart contract development using Solidity, Hardhat, or Truffle Experience with Web3.js, Ethers.js, or similar libraries Contributions to open-source or blockchain projects is a plus Strong communication and collaboration abilities. Stay updated on emerging technologies, especially in the Web3 ecosystem. Roles and Responsibilities: Design and develop full-stack web applications using MongoDB, Express.js, React.js, and Node.js. Integrate blockchain components into web platforms (e.g., wallets, smart contracts, token interfaces). Collaborate with front-end and blockchain engineers to develop end-to-end features. Write clean, modular, and reusable code while adhering to best practices in software development. Work closely with UX/UI designers to create user-friendly interfaces. Implement secure, scalable, and efficient back-end services. Translating designs and wireframes into high-quality code. Troubleshoot, debug, and upgrade existing systems to improve performance and user experience. Participate in code reviews and contribute to a culture of continuous improvement. Understand client requirements and functional specifications. Learning and implementing web3 and blockchain technology. What we offer: Competitive salary and benefits package. Opportunities for professional growth and career advancement Flexible work arrangements and a focus on work-life balance Job Type: Full-time Pay: ₹12,000.00 - ₹50,000.00 per month Experience: Blockchain: 1 year (Preferred) Location: Narimedu, Madurai, Tamil Nadu (Preferred) Work Location: In person

* Design and implement blockchain-based applications using QuickNode, Web3Auth, and Python or Node.js. * Develop and maintain smart contracts and decentralized applications (dApps) Flexi working Work from home Leave encashment Job/soft skill training Disability inclusion hiring program