Senior QA Engineer Web3

You will lead manual, exploratory, functional, regression, load, stress, and performance testing for Web3 features. You will validate blockchain, wallet, smart contract, API, and on-chain and off-chain workflows, track defects, maintain QA documentation, manage test environments, support CI/CD coverage, evaluate AI-powered testing tools, monitor production data, and mentor junior QA engineers.

Responsibilities

• Lead manual testing of complex Web3 and platform features
• Validate blockchain interactions, wallet flows, and decentralized identity and authentication
• Test smart contract interactions, event handling, and on-chain and off-chain synchronization
• Drive exploratory, functional, and regression testing
• Identify, log, and track reproducible issues using Jira or similar tools
• Analyze blockchain node responses, RPC interactions, and event-driven workflows
• Validate transaction signing, wallet authentication, and multi-chain compatibility
• Test smart contract upgrades, migrations, and versioning
• Monitor production logs, blockchain explorers, and analytics dashboards
• Create and maintain test cases, checklists, and QA documentation
• Collaborate with engineering and DevOps on CI/CD test coverage
• Evaluate and integrate AI-powered testing tools
• Set up and manage test environments, staging pipelines, and job configurations
• Conduct load, stress, and performance testing
• Advocate for quality across sprint planning, reviews, and releases
• Mentor junior QA engineers
• Contribute to testing best practices for decentralized and hybrid systems

Requirements

• Minimum 7 years of total QA experience
• At least 2 years of hands-on Web3 testing experience
• Strong understanding of manual testing methodologies and defect life cycle
• Familiarity with blockchain fundamentals including transactions, gas, confirmations, and RPC endpoints
• Experience validating APIs with Postman or similar tools
• Proficiency with Jira or similar bug tracking systems and Git or similar version control
• Comfort using browser developer tools and basic command-line workflows
• Strong written and verbal English communication skills
• Familiarity with AI-powered testing tools
• Experience with wallet testing is a plus
• Understanding of smart contracts, Solidity basics, or blockchain debugging tools is a plus
• Experience with Playwright, Cypress, or Selenium is a plus
• Knowledge of backend technologies, APIs, PHP, or related languages is a plus
• Experience with Linux and Bash scripting is a plus
• Hands-on experience with AI platforms used in QA is a plus

Benefits

• Medical benefits
• Dental benefits
• Vision benefits
• Paid time off