Senior QA Automation Engineer

Aplazo

. Mentor engineers on quality, including TDD and test design .

Posted 10/1/2026full-timeRemote • MexicoSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in automated testing strategies, including unit, integration, contract, and end-to-end testing, while mentoring engineers on quality practices and utilizing AI tools for test generation and coverage analysis. Proficient in modern programming languages and CI/CD processes, with a strong focus on production-grade code and quality metrics.

Highest-signal resume keywords

Automated Testing DesignJava/JavaScript/TypeScript/Python/Dart ProficiencyCI/CD and Jenkins PipelinesSelenium/Cucumber/Appium/Rest Assured ExperienceAI Tools for Test Generation

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Hard Skills

Automated TestingProduction-Grade CodeUnit TestingIntegration TestingEnd-to-End TestingTest DesignQuality Metrics TrackingIncident ResponseTroubleshootingDocumentation

Soft Skills

MentoringCoachingAdaptabilityCollaboration

Tools & Technologies

SeleniumCucumberAppiumRest AssuredJenkinsGitHub ActionsDatadogPostmanJMeterPlaywright

Industry Keywords

FintechPaymentsHigh-Reliability SystemsMobile TestingPerformance TestingLoad TestingContract TestingAPI Testing

Tech Stack

Tools & technologies

AngularAWSDartFlutterJavaJavaScriptJenkinsJMeterMongoDBPostgresPythonSeleniumSpringTypeScript

About the role

Key responsibilities & impact

Mentor engineers on quality, including TDD and test design
Define testing approaches for the squad across unit, integration, contract, and end-to-end testing
Build production-grade automation, testing tools, and test scripts
Instrument and track quality metrics such as coverage, flakiness, test times, and defect rates
Use data to prioritize quality improvements
Use AI to generate tests, identify coverage gaps, and accelerate quality feedback loops
Participate in on-call and incident response
Troubleshoot production issues using logs, metrics, and observability tools
Investigate services and infrastructure, identify or narrow root causes, perform operational actions, and escalate incidents
Help engineers catch issues earlier through design, testability coaching, and fast feedback
Lead quality initiatives for the squad and mentor engineers on testing practices

Requirements

What you’ll need

3–5+ years as a software engineer or QA
Strong programming skills and ability to write production-grade, maintainable code
Proficiency in at least one modern programming language, such as Java, JavaScript/TypeScript, Python, or Dart
Ability to quickly adapt to other languages for QA tooling
Hands-on experience designing, building, and maintaining automated tests across web, API, and/or mobile
Experience with tools such as Selenium, Cucumber, Appium, Rest Assured, Playwright, Maestro, Patrol, or equivalent technologies
Deep expertise in unit, integration, contract, and end-to-end testing strategies
Proficiency with CI/CD, Jenkins pipelines, and GitHub Actions
Familiarity with Java/Spring, Angular/Flutter, AWS, PostgreSQL, MongoDB, Datadog, Postman, Bruno, and JMeter
Familiarity with on-call processes, production troubleshooting, logs, metrics, observability tools, mitigation actions, and incident escalation
Experience using AI tools to generate test cases, identify edge cases, detect flaky tests, analyze coverage gaps, and prioritize testing
Experience coaching engineers and changing team practices
Ability to write clear documentation and runbooks
Fluent in Spanish
Working knowledge of English for cross-team collaboration
Nice to have: fintech, payments, or high-reliability systems experience
Nice to have: mobile, performance/load, contract/API testing, open-source, or mobile device farm experience