Web3 QA Engineer – Testing & Assurance
We are seeking a detail-oriented and experienced QA Engineer to ensure the quality, stability, and performance of a modern Web3 waitlist and engagement platform built with Next.js, Supabase, and BSC Testnet integration. The ideal candidate should have strong experience in frontend and backend testing, Web3 application validation, wallet interaction testing, and end-to-end quality assurance processes. You will be responsible for identifying bugs, validating blockchain functionality, improving product reliability, and ensuring a seamless user experience across desktop and mobile platforms. Key Responsibilities -Functional & UI Testing Perform manual and automated testing for frontend applications built with Next.js and Tailwind CSS Validate responsive behavior across desktop, tablet, and mobile devices Test user flows including onboarding, wallet connection, staking, referrals, and dashboard interactions Identify UI/UX inconsistencies and collaborate with developers to resolve issues Ensure cross-browser compatibility and smooth application performance -Web3 & Blockchain Testing Test wallet integrations including MetaMask, WalletConnect, and EVM-compatible wallets Validate blockchain interactions on BSC Testnet (Chain ID: 97) Verify: Transaction execution Smart contract interactions Staking functionality Network switching and validation Monitor and report blockchain-related issues, transaction failures, and edge cases -Backend & Database Validation Test Supabase APIs, PostgreSQL database operations, and authentication systems Validate referral tracking, reward logic, staking logs, and user data accuracy Verify API responses, permissions, and Row Level Security (RLS) behavior Perform regression and integration testing for backend workflows -Automation & Quality Processes Create and maintain test cases, bug reports, and QA documentation Develop automated testing workflows where applicable Conduct smoke, regression, integration, and end-to-end testing Collaborate closely with developers to improve release quality and deployment readiness Participate in sprint planning, feature reviews, and QA sign-offs -Security & Performance Testing Validate wallet security and authentication flows Test API protection, data validation, and access controls Identify performance bottlenecks and usability issues Ensure platform reliability, scalability, and production readiness Required Skills -Must Have Experience in manual and automated QA testing Strong understanding of web application testing methodologies Experience testing modern frontend applications (Next.js preferred) Familiarity with Web3 applications and EVM-based blockchain interactions Experience testing wallet connections and blockchain transactions Knowledge of API testing and database validation Strong bug reporting and debugging skills Experience Level Mid-Level to Senior QA Engineer (2–5+ years preferred) Work Type Remote Freelance / Contract (Flexible Engagement) Apply tot his job Apply To this Job