Senior SDET: API, Performance & Automation (Remote)

Tech Holding; Región Centro; A distancia; MXN 500.000 - 800.000; Jornada completa

Descripción de la vacante

Tech Holding is seeking a Senior SDET / Test Automation Engineer for a contract, remote in MX. You will design and implement automated testing across APIs, integrations, and performance scenarios, and help gate releases in a CI/CD workflow within AWS.

This hands-on role focuses on scalable test architectures, data fixtures, and reliable test environments. You will collaborate with engineering teams to ensure quality from development to production and reduce flaky tests while improving

Formación

• Strong experience as an SDET, Software Engineer in Test, Test Automation Engineer, Quality Engineer, or similar engineering-focused testing role.
• Strong software development and test automation skills.
• Experience testing APIs, distributed services, integrations, and cloud-based applications.
• Hands-on experience working within AWS environments.
• Strong experience building automated API and integration test frameworks.
• Hands-on performance and scalability testing experience using tools such as k6, Gatling, Locust, JMeter, or equivalent
• Experience designing realistic performance workloads rather than simply executing predefined load tests
• Experience with load, stress, spike, soak, and scalability testing
• Strong experience integrating automated tests into CI/CD pipelines
• Experience establishing automated quality gates and release criteria
• Experience with contract testing and testing across service boundaries
• Strong understanding of test-data management, synthetic data, fixtures, mocks, and environment reliability
• Experience using logs, metrics, traces, and other observability tools to diagnose test and system failures
• Strong debugging skills across applications, APIs, infrastructure, databases, and integrations
• Experience identifying and reducing flaky or unreliable automated tests
• Ability to influence engineering teams and promote shared ownership of quality without becoming a centralized testing bottleneck

Responsabilidades

• Design and evolve the automated testing architecture across products and engineering teams.
• Build and maintain automated API, integration, contract, end-to-end, regression, and UI tests where appropriate.
• Develop reusable test frameworks, fixtures, synthetic data, mocks, and environment strategies.
• Build automated testing for distributed services and integrations running within AWS environments.
• Design and execute load, stress, spike, soak, scalability, degradation, and recovery tests.
• Translate performance and capacity scenarios into repeatable automated test suites with measurable pass/fail thresholds.
• Model realistic workloads, concurrency levels, traffic patterns, data volumes, and dependency behavior.
• Integrate automated suites into CI/CD pipelines and establish enforceable quality and release gates.
• Create automated release checks tied to quality, latency, reliability, and performance thresholds.
• Establish practices for identifying, quarantining, diagnosing, and eliminating flaky tests.
• Improve test observability and failure reporting so engineers can quickly understand and diagnose issues.
• Build and maintain reliable test data and test environment strategies.
• Debug failures across APIs, services, databases, infrastructure, and external integrations.
• Partner with Performance & Reliability Engineering to validate scalability assumptions and production readiness
• Partner with Security Engineering on permissions, isolation, negative-path, and abuse-related test scenarios
• Track testing trends and help reduce escaped defects, flaky tests, manual release effort, and regression risk

Conocimientos

SDET

Test automation

API testing

AWS

Performance testing

Herramientas

k6

Gatling

Locust

JMeter

Descripción del empleo

Tech Holding is seeking a Senior SDET / Test Automation Engineer for a contract, remote in MX. You will design and implement automated testing across APIs, integrations, and performance scenarios, and help gate releases in a CI/CD workflow within AWS.

This hands-on role focuses on scalable test architectures, data fixtures, and reliable test environments. You will collaborate with engineering teams to ensure quality from development to production and reduce flaky tests while improving