Senior QA Automation Engineer

Triwill Group; Mexico; On-site; MXN 600,000 - 800,000; Full time

Job summary

Triwill Group, on behalf of a partner company, seeks a Senior QA Automation Engineer based in Mexico. You will combine exploratory testing with an automation-first approach across APIs, distributed services, and external financial integrations to ensure robust payment flows.

Join a modern, cloud-based fintech platform and own end-to-end quality—from test strategy and automation through production debugging and release readiness.

Qualifications

• Senior QA Automation Engineer with focus on automation-first testing.
• Experience shaping test strategy and acceptance criteria.
• Strong collaboration with backend engineers and product teams.

Responsibilities

• Protect reliability, correctness, and scalability of payment flows.
• Define acceptance criteria and improve testability across systems.
• Own end-to-end quality from test strategy to production release.

Skills

Exploratory testing

Automation testing

Test strategy

Production debugging

Tools

Java

Spring Boot

REST APIs

React

PHP

AWS

Playwright

Job description

Description:

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior QA Automation Engineer based in Mexico.

This is a senior-level quality engineering role focused on protecting the reliability, correctness, and scalability of critical payment flows.
You’ll combine exploratory testing with an automation-first approach across APIs, distributed services, and external financial integrations.
The role offers ownership of end-to-end quality, from test strategy and automation through production debugging and release readiness.
You’ll work closely with backend engineers and product teams to define acceptance criteria, improve testability, and strengthen quality gates.
The environment is modern and cloud-based, with Java, Spring Boot, REST APIs, React, PHP, AWS, and Playwright at its core.
You’ll have the opportunity to influence engineering standards while working on a high-impact fintech platform used for global payments and financial operations.
This is an ideal opportunity for a technically strong QA professional who enjoys solving complex problems and building scalable, reliable testing practices.