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

Job Title: Flutter Developer (2+ Years Experience) Location: On-Site Company: Bingo Singapore Pte. Ltd. Experience: 2+ years in Flutter Development Job Summary: We are looking for a skilled Flutter Developer with 2+ years of experience to build high-quality, cross-platform mobile applications. The ideal candidate should have strong expertise in UI/UX design, API integration, deep linking, and push notifications . Key Responsibilities: ✔ UI/UX Development: Design and implement responsive, pixel-perfect UIs in Flutter. Work with custom animations, widgets, and Material/Cupertino design . Ensure smooth performance and a seamless user experience. ✔ API Integration & State Management: Integrate RESTful APIs, GraphQL, or WebSockets for data fetching. Use Bloc, Provider, Riverpod, or GetX for state management. Handle authentication (JWT, OAuth) and local storage (SharedPreferences, Hive, SQLite) . ✔ Deep Linking & Dynamic Links: Implement deep linking (Firebase Dynamic Links, UniLinks) for navigation. Handle app routing based on URL schemes. ✔ Push Notifications: Set up and manage Firebase Cloud Messaging (FCM) for push notifications. Implement local notifications using packages like flutter_local_notifications. ✔ App Performance & Optimisation: Optimise app performance by reducing junk, memory leaks, and battery usage . Use Flutter DevTools for debugging. ✔ Version Control & Collaboration: Work with Git (GitHub/GitLab/Bitbucket) in an Agile environment. Collaborate with backend developers, designers, and QA teams. Required Skills & Qualifications: ✅ 2+ years of experience in Flutter & Dart . ✅ Strong knowledge of API integration (REST, GraphQL, Dio, Retrofit) . ✅ Experience with deep linking (Firebase Dynamic Links, Android App Links, iOS Universal Links) . ✅ Hands-on experience with push notifications (FCM, OneSignal, etc.) . ✅ Proficiency in state management (Bloc, Provider, GetX, Riverpod) . ✅ Familiarity with CI/CD pipelines (Fastlane, GitHub Actions, Codemagic) . ✅ Understanding of OOP, design patterns, and clean architecture . Good to Have: - Experience with Firebase (Auth, Firestore, Cloud Functions) . - Knowledge of native Android/iOS (Kotlin/Swift) . - Familiarity with Flutter Web & Desktop (if applicable) . Why Join Us? Opportunity to work on cutting-edge mobile apps . Flexible work environment (Remote/On-site). Competitive salary & growth opportunities. Job Types: Full-time, Permanent Pay: From ₹15,000.00 per month Schedule: Monday to Friday Morning shift Weekend availability Supplemental Pay: Performance bonus Quarterly bonus Experience: Flutter: 2 years (Required) Language: English (Preferred) Work Location: In person