Senior QA Engineer

Dubai, United Arab Emirates; Dubai; Hybrid; AED 120,000 - 160,000; Full time

Job summary

A leading DeFi technology company is seeking a Senior QA Engineer to ensure the quality and security of our Web3 APIs. This role involves designing test plans, conducting cross-platform testing, and mentoring junior engineers. Candidates should have over 5 years in QA engineering, with a strong understanding of API testing and Agile methodologies. Competitive pay, unlimited vacation, and opportunities for growth are offered. Join us to shape the future of decentralized finance.

Benefits

Unlimited vacation days

Competitive salary

Company retreat

Work gear compensation

Qualifications

• 5+ years in QA engineering, with 2+ years working on SaaS/API products.
• Basic knowledge of Web3 fundamentals: blockchain concepts, EVM chains.

Responsibilities

• Design and execute test plans for UI, REST APIs, WebSocket APIs.
• Ensure the accuracy of API documentation and developer tools.
• Conduct cross-browser and cross-device testing for the Developer Portal UI.
• Integrate automated tests into CI/CD pipelines.

Skills

JavaScript/TypeScript

Unit Testing

API Testing – REST, WebSockets

Automation Frameworks – Playwright, CodeceptJS

CI/CD – Git-based workflows – GitHub Actions

Ticketing Systems – Jira

Excellent English communication skills

Job description

Senior QA Engineer

1inch is the DeFi ecosystem building financial freedom for everyone. 1inch products help users and builders trade, hold and track digital assets – with self‑custody, security, and intuitive user experience – to unlock the potential of true crypto ownership. 1inch protocols and APIs provide core infrastructure across the DeFi industry and beyond.

Location: We hire with a focus on Dubai and Europe. For this role, we prefer candidates who are either based in Dubai or working remotely within ±4 hours GST time.

As a Senior QA Engineer for our Developer Portal, you’ll ensure the quality, performance, and security of our Web3 APIs SaaS platform. You’ll test developer‑facing web applications and underlying APIs, validate blockchain integrations, and ensure a seamless developer experience. Your work directly impacts reliability of our DeFi infrastructure and developer community satisfaction.

Responsibilities

• Design and execute test plans for UI, REST APIs, WebSocket APIs.
• Ensure the accuracy of API documentation, code samples, and developer tools.
• Conduct cross‑browser and cross‑device testing for the Developer Portal UI.
• Actively participate in improving QA processes and procedures on the project.
• Develop test data strategies for blockchain environments using mocks, simulators, and public testnets.
• Partner with developers, product managers, and blockchain engineers to define acceptance criteria and embed QA early in the development cycle.
• Integrate automated tests into CI/CD pipelines (GitHub Actions).
• Mentor junior QA engineers on testing methodologies.

Requirements

• 5+ years in QA engineering, with 2+ years working on SaaS/API products.
• Basic knowledge of Web3 fundamentals: blockchain concepts, EVM chains, web3 nodes, wallets, and smart contracts.
• Proven experience in API testing and automation frameworks.
• Proficient in writing and maintaining unit, integration, and end‑to‑end tests.
• Experience in CI/CD environments with Git‑based workflows.
• General understanding of Agile/Scrum methodologies.
• Strong understanding of QA methodologies for both UI and API layers.

Skills

• JavaScript/TypeScript
• Unit Testing
• API Testing – REST, WebSockets
• Automation Frameworks – Playwright, CodeceptJS
• CI/CD – Git‑based workflows – GitHub Actions
• Ticketing Systems – Jira
• Excellent English communication skills (written and spoken).

Nice to Have

• Familiarity with observability tools (Grafana) for monitoring performance and stability.
• Previous experience in Web3, De‑Fi, Blockchain and/or Cryptocurrency.

Why Work for Us?

• Join a young, creative team in a fast‑paced and supportive environment.
• We’re open to new ideas – if you’ve got a vision, pitch it and make it happen.
• Enjoy competitive pay that matches your skills and experience.
• Be part of a company shaping the future of DeFi.
• Take time when you need it – we offer unlimited vacation days.
• Get fully compensated for your work gear – we’ll set you up for success.
• Travel with us! We host an annual team retreat at a top international location.