Senior QA Engineer (Contractor)

About this role

About the company Trust Wallet is the leading non-custodial cryptocurrency wallet, trusted by over 200 million people worldwide to securely manage and grow their digital assets. Our vision is to give individuals the freedom to own their assets, confidently participate in the future economy, and access opportunities that enhance their lives. Our mission is to be a trusted personal companion — helping users safely navigate Web3, the on-chain economy, and the emerging AI-powered future. With support for over 10 million assets across 100+ blockchains, Trust Wallet offers a seamless, multi-chain experience backed by industry-leading self-custody technology, a vibrant community, and a growing ecosystem of partners. ABOUT THE ROLE We're looking for a Senior QE Engineer / SDET to own and evolve our automation ecosystem across Android and iOS. You'll work within a modern TypeScript-first monorepo, building a unified test framework from the ground up and embedding quality gates deep into trunk-based CI/CD pipelines. This role is highly technical — you'll design frameworks, own CI/CD reliability, and work closely with mobile and platform engineers to shift quality left. WHAT YOU'LL DO - Own the automation testing platform for mobile (iOS/Android). - Build and maintain our unified QE SDK — WebdriverIO + TypeScript. - Integrate testing into CI/CD using GitHub Actions — smoke, regression, and release-gate pipelines. - Implement best practices for test parallelisation, tagging, stability, and flake detection with automatic quarantine. - Improve test observability — dashboards, trend tracking, and artefact management for test runs. - Manage device farm coverage strategy via cloud device providers — device matrix, session configuration, and cost efficiency. - Contribute to QE SDK onboarding via Claude Code skills and contribution guidelines. - Mentor engineers on testing techniques, CI/CD integration, and reliability practices. MUST HAVE - 3+ years in QA automation / SDET roles with end-to-end framework ownership. - Strong hands-on experience with TypeScript — this is our primary language. - Experience with mobile automation (iOS and Android) — framework specifics are less important than depth of understanding. - Proven ability to build and maintain CI/CD pipelines in GitHub Actions. - Solid understanding of flake root causes — retry strategies, quarantine, and stability metrics. - Familiarity with Web3 or blockchain concepts at an engineering level — wallets, transactions, signing, networks. - Excellent collaboration and async communication skills in a remote-first team. NICE TO HAVE - Experience with WebdriverIO and/or Appium — our current stack. - Experience integrating feature flag systems into automated test sessions. - Prior work on quality dashboards or data-driven test analytics. - Exposure to containerised or cloud-based test infrastructure. - Experience with performance or visual regression testing. WHO WILL THRIVE HERE This role isn't for someone who treats testing as a checklist. You'll be joining at a point where the foundation is still being laid — that means real influence over architecture decisions, but also real accountability for outcomes. You'll do well here if you've felt the pain of an unreliable test suite and actually fixed it. If you have opinions about test design that go beyond "write more tests." If you think about coverage in terms of risk, not percentages. We move fast and our standards are high. The best fit is someone who has built automation infrastructure from scratch — not just maintained it. WHAT YOU'LL WALK INTO The automation foundation is being built now — you'll have real ownership over architecture decisions that will stick long-term. You'll work across iOS and Android in a codebase that ships frequently, and your work will directly influence release confidence and team velocity. ADDITIONAL INFORMATION This is a global and fully remote role. You must have the right to work for the country you are based. WHY WORK AT TRUST WALLET? - Be a part of the world’s leading blockchain ecosystem that continues to grow. - Excellent learning and career development opportunities. - Work alongside diverse, world-class talent, in an environment where learning and growth opportunities are endless. - Tackle fast-paced, challenging and unique projects. - Work in a truly global organization, with international teams and a flat organizational structure. - Work fully remotely with flexible working hours. - Enjoy competitive salary and benefits. Apply today to join our team in building the world’s most trusted and secure crypto wallet and enable a decentralized future for everyone. Trust Wallet is committed to being an equal opportunity employer. We believe that having a diverse workforce is fundamental to our success. *Due to the large amount of the applications, please consider your application as unsuccessful should you not be contacted within 4 weeks from your application date.