Senior QA Automation Engineer

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 Croatia. 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.