About Us
Red Apple Technologies
is a fast-growing technology and consulting organization helping businesses solve complex challenges through smart, scalable digital solutions. Our mission is to enable growth by combining technology, strategy and execution so our clients can focus on what matters most: building sustainable, future-ready businesses. Founded with an entrepreneurial spirit, we work with startups, SMEs and enterprise clients across industries, delivering solutions in
SaaS, AI, AR/VR, digital transformation and project management ecosystems.
We believe that technology should be practical, impactful and aligned with real business outcomes. Today, Red Apple Technologies is trusted by clients who value agility, innovation and long-term partnerships. Our teams collaborate closely with business leaders to understand their goals, identify opportunities and deliver measurable results that drive efficiency, scalability and competitive advantage.
We have a strong vision of building a people-first organization where learning, ownership and growth go hand in hand. At Red Apple Technologies, careers are shaped by exposure, responsibility and continuous development whether you re starting your journey or scaling your expertise.
We re growing with purpose, focused on building meaningful solutions, lasting client relationships and a culture where talented individuals can thrive.
And this is just the beginning.
What s the role
As a
Senior Blockchain Developer
, you will be responsible for designing, developing and deploying decentralized applications (dApps) and smart contracts
for real-world use cases. This role is ideal for an experienced professional with strong hands-on expertise in Ethereum, Solidity, Web3 frameworks and blockchain security best practices.
You will work closely with frontend, backend and AI teams to build secure, scalable and production-grade blockchain solutions across DeFi, GameFi and enterprise use cases.
What will be your responsibilities
- Design, develop and
deploy decentralized applications (dApps) and smart contracts
using Ethereum/Solidity or other blockchain platforms.
- Build
secure, scalable and gas-efficient smart contracts
, performing audits to prevent vulnerabilities.
- Work with
Web3 libraries and blockchain protocols
to connect dApps with smart contracts.
- Collaborate with
frontend and backend teams
to integrate blockchain-based functionalities.
- Design and implement
tokenomics models
for DeFi and GameFi applications.
- Develop
AI-enhanced blockchain solutions
, such as fraud detection and intelligent data processing systems.
- Ensure blockchain solutions meet
security, performance and scalability standards
.
- Participate in
code reviews, testing, debugging
and optimization of smart contracts and dApps.
- Integrate blockchain applications with
REST APIs, JSON-RPC
and blockchain nodes.
- Stay updated with the latest advancements in
blockchain, crypto protocols and Web3 technologies.
- Maintain clear technical documentation and follow secure development practices.
What s required from you
-
B.Sc. / B.E. / B.Tech / M.E. / M.Tech
in Computer Science or Electronics Communication
- Or
relevant practical experience
in lieu of formal education
Experience Technical Skills
-
5+ years of hands-on experience
in blockchain application development.
- Strong proficiency in
Solidity, Web3.js, ethers.js, Truffle, Hardhat
, or similar frameworks.
- Experience with blockchain platforms such as
Ethereum, Polygon, Solana, or BNB Chain
.
- Strong understanding of
consensus mechanisms
(PoW, PoS), cryptography and blockchain data structures.
- Experience in
smart contract security best practices
and vulnerability prevention.
- Familiarity with
REST APIs, JSON-RPC
and blockchain node integrations.
- Working knowledge of
Git, CI/CD pipelines and Agile methodologies.
- Strong analytical thinking and problem-solving skills.
Nice to Have
- Experience with
Layer 2 solutions
(Optimism, Arbitrum, zkSync).
- Familiarity with
IPFS, The Graph, Chainlink oracles
.
- Backend development experience with
Node.js or Python.
- Contributions to
open-source blockchain projects
or deployed dApps.
- Exposure to
AI + Blockchain integrations
.
What makes us different
At Red Apple Technologies, we value
experience, stability and meaningful impact.
This role is built for professionals who want to apply their expertise, shape processes and contribute strategically without constant travel or role ambiguity. We emphasize clarity, accountability and long-term growth over short-term hustle.
What do we stand for
The values that define how we work and grow at Red Apple Technologies:
Ownership:
We believe in taking complete responsibility for our work. Our people are empowered to make decisions, take initiative and drive outcomes with confidence and clarity.
Collaboration:
Great solutions are built together. We value diverse perspectives, open communication and cross-functional teamwork to solve complex business problems effectively.
Growth:
When our people grow, so does the organization. We encourage continuous learning, skill enhancement and opportunities to take on meaningful, challenging work.
Integrity:
Trust is at the core of everything we do with our clients, our teams and our partners. We believe in transparency, ethical decision-making and doing the right thing even when it s hard.
Consistency:
Long-term success is built through discipline and consistency. We focus on sustainable growth,strong processes and delivering reliable results one step at a time. Join us and be part of a team that values experience, accountability and meaningful impact.
What employee benefits do we have
- Medical insurance coverage for employees and their families.
- Compensation will be commensurate with experience, technical depth, and contribution to high-impact AI/ML solutions. This role is positioned for experienced professionals seeking long-term ownership of intelligent systems in production environments.
- Structured learning development (LD) programs.
- Location-stable roles in Kolkata/Delhi with no travel requirement.
- A professional, collaborative and growth-focused work environment.
- Long-term career progression opportunities in a growing organization.
We re building a workplace where experienced professionals can do their best work without unnecessary complexity while growing steadily and sustainably with the company.
