Senior QA Engineer

Remote
Full Time
Experienced
About the Role

We are looking for a Senior QA Engineer to join a first crypto casino platform operating in a real-money, high-transaction environment.
This is a foundational QA role: you will be the first QA engineer in the company, with full ownership to design, build, and scale the QA automation strategy from scratch.
Quality is a top priority for the business, and this role plays a critical part in ensuring transactional integrity, system reliability, and user trust.

Key Responsibilities
    •    Own the QA strategy end-to-end, with a strong focus on automation-first testing
    •    Design and implement test automation frameworks from scratch
    •    Validate transactional flows such as:
    •    Wallet balances
    •    Debits / credits
    •    Retries and idempotency
    •    Rollbacks and partial failures
    •    Ensure frontend behavior always matches backend state
    •    Perform API and backend-heavy testing, with frontend validation as part of E2E flows
    •    Define and execute integration, regression, and end-to-end tests
    •    Work closely with backend engineers to validate events, services, and data consistency
    •    Integrate automated tests into CI/CD pipelines
    •    Identify edge cases and failure scenarios in real-money systems
    •    Document QA processes, test coverage, and quality metrics
    •    Act as a quality owner, not just an executor

What We’re Looking For
    •    5+ years of experience as a QA Engineer / SDET
    •    Strong experience with test automation, not manual-only profiles
    •    Proven experience building or owning automation frameworks
    •    Solid background testing APIs and backend systems
    •    Experience with transactional or critical systems (payments, fintech, crypto, iGaming, wallets, high-traffic platforms)
    •    Strong understanding of:
    •    Distributed systems
    •    Event-driven architectures
    •    Data consistency and state validation
    •    Comfortable working independently with high ownership
    •    Experience working in remote teams
    •    Based in LATAM (required)

Technical Skills (flexible stack)

There is no fixed tool stack. We value experience and decision-making over specific tools. Commonly used tools include:
    •    Automation: Playwright, Selenium, Cypress, Robot Framework
    •    Languages: TypeScript, JavaScript, Python, Java, or similar
    •    API Testing: Postman, REST Assured, Swagger
    •    CI/CD: GitHub Actions, Jenkins, GitLab CI
    •    Performance / load testing experience is a plus

Nice to Have
    •    Experience in iGaming or crypto platforms
    •    Experience as the first QA in a team or startup
    •    Exposure to production monitoring and post-release validation
    •    Performance or load testing experience
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