Senior QA Engineer

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.

• 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

• 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)

• Automation:
  • Playwright
  • Selenium
  • Cypress
  • Robot Framework
• Languages:
  • Type Script
  • Java Script
  • Python
  • Java
  • or similar
• API Testing:
  • Postman
  • REST Assured
  • Swagger
• CI/CD:
  • Git Hub Actions
  • Jenkins
  • Git Lab CI
• Performance / load testing experience is a plus

• 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