Sr QA Automation Engineer
Senior QA Automation Engineer at Aplazo, a Series B Mexican fintech, owning test strategy and quality for a squad: writing production-grade automation and tooling, driving quality metrics, mentoring engineers, and joining on-call. Stack includes Java/JS/Python, Playwright/Selenium/Appium, Jenkins/GitHub Actions, AWS, and Datadog.
- Compensation
- Not disclosed
- Location
- Mexico
- Work setup
- Remote
- Seniority
- Senior
- Employment
- Contract
- Experience
- 5+ years
- Category
- Qa
- Posted
Skills
Must have
- 3-5+ years as a software engineer or QA
- Strong programming skills; proficiency in at least one modern language (Java, JavaScript/TypeScript, Python, Dart)
- Hands-on test automation across Web, API, and/or Mobile (Selenium, Cucumber, Appium, Rest Assured, Playwright, Maestro/Patrol or equivalent)
- Deep expertise in test architecture: unit, integration, contract, and e2e testing strategies
- Proficient with CI/CD, Jenkins pipelines and GitHub Actions
- Familiar with the stack or similar: Java/Spring, Angular/Flutter, AWS, PostgreSQL, MongoDB, Datadog, Postman, Bruno, JMeter
- Familiar with on-call process and production troubleshooting using logs, metrics, and observability tools like Datadog
- Uses AI tools to generate test cases, identify edge cases, detect flaky tests, and analyze coverage gaps
- Experience coaching engineers and changing team practices
- Writes clear documentation and runbooks
- Fluent in Spanish; working knowledge of English
Nice to have
- Experience in fintech, payments, or high-reliability systems
- Background in mobile testing (Flutter, iOS, Android), web testing (HTML/Angular/JS), backend testing (Java, Spring Boot, Golang), Maestro or Patrol
- Performance and load testing experience
- Contract testing (Pact) or API testing expertise
- Contributions to open-source testing tools or frameworks
- Experience managing a mobile device farm (Sauce Labs)
Full description
Senior QA Automation Engineer
Level: E2 (Senior)
Location: Mexico City or Remote (LATAM)
About the Role
We're looking for a Senior QA Automation Engineer to elevate engineering quality across Aplazo. This is an engineering role—you'll write production-grade code and maintain automated tests independently; improve existing suites and coverage in your own area, adapt and improve test plans for medium/large features, execute end-to-end with little guidance and give clear feedback to engineers on quality.
You're an engineer who's passionate about quality and believes the best way to achieve it is by empowering every engineer to test better.
At E2, you lead quality initiatives for your squad and mentor engineers on testing practices.
What You'll Do
- Mentor engineers on quality — Pair with engineers to improve their testing practices; TDD, and test design
- Own test strategy — Define testing approaches for your squad
- Write code — Build production-grade automation, testing tools & test scripts
- Drive quality metrics — Instrument and track quality signals (coverage, flakiness, test times, defect rates); use data to prioritize improvements
- Leverage AI for quality — Use AI to generate tests, identify coverage gaps, and accelerate quality feedback loops
- Participate in on-call & incident response - Troubleshoot production issues using logs, metrics, and observability tools; investigate services and infrastructure, identify or narrow down root causes, perform appropriate operational actions, and escalate incidents to the right owning team with clear technical context.
- Shift quality left — Help engineers catch issues earlier through better design, testability coaching, and fast feedback
What We're Looking ForTechnical
- 3 - 5+ years as a QA Automation Engineer
- Strong programming skills— able to write production-grade, maintainable code, not just test scripts. Proficiency in at least one modern programming language (e.g., Java, JavaScript/TypeScript, Python, Dart) and the ability to quickly adapt to others for QA tooling.
- Hands-on test automation experience — experience designing, building, and maintaining automated tests across Web, API, and/or Mobile using tools such as Selenium, Cucumber, Appium, Rest Assured, Playwright, Maestro | Patrol, or equivalent technologies.
- Deep expertise in test architecture: unit, integration, contract, and e2e testing strategies