Job description

We are seeking a Mid-Level QA Engineer with a strong foundation in manual and automated testing, combined with real-world experience in blockchain.

In this role, you’ll ensure the quality, functionality, and security of decentralized applications and smart contracts by working closely with developers, product managers, and blockchain engineers.

Key Responsibilities

• Design and execute comprehensive test plans (manual and automated) for Web3 applications
• Test smart contracts and blockchain transactions across different networks (Ethereum, Polygon, etc.)
• Perform API, functional, integration, regression, and performance testing
• Create and maintain automated test suites using modern frameworks (Cypress, Playwright, etc.)
• Validate front-end and back-end components across Web3 stacks
• Collaborate in a cross-functional team and contribute to quality strategy and process improvement
• Log, track, and report bugs in a structured way using tools like JIRA or similar
• Participate in sprint ceremonies and contribute to release readiness

Requirements

• 5+ years of professional QA experience in software projects
• 2+ years of experience testing blockchain-based products or smart contracts
• Solid knowledge of test automation (JavaScript, TypeScript, or Python preferred)
• Hands-on experience with blockchain tools such as Hardhat, Truffle, or Foundry
• Strong API testing skills (REST, GraphQL) using Postman or equivalent
• Familiarity with Git, CI/CD pipelines, and modern DevOps practices
• Analytical thinking and attention to detail