QA Engineer

QA Engineer

Summary

Location: Barcelona (Hybrid)

Day Rate: Negotiable

Duration: Until end of 2025

Availability: ASAP

About the Client

My client is the air transport industry's IT provider, delivering solutions for airlines, airports, aircraft, and governments. Their technology powers more seamless, safe, and sustainable air travel.

They are looking to hire an experienced QA Automation Engineer to join on a freelance/contract basis until the end of 2025, with a potential view to extend.

About the Role

Our client is building aviation technology that helps airlines reduce fuel burn and optimize flight efficiency. Their product is a complex, high-impact system used by major carriers across the globe.

We're looking for a QA Automation Engineer to join our team and help shape the quality assurance process for a system built on a microservice-based, Kafka eventdriven architecture.

You'll work side by side with developers, product owners, and DevOps to make sure what we ship is robust, scalable, and high performing.

Key Duties:

• Develop and maintain automated test cases for APIs and services

• Collaborate with developers to ensure test coverage for critical paths

• Own test execution across environments and contribute to CI/CD pipeline integration

• Troubleshoot test failures and bugs; work with the team to resolve issues quickly

• Continuously improve QA automation frameworks, tooling, and processes

What we are looking for Knowledge & Skills

• 3+ years of experience in QA automation

• Strong coding skills in Java

• Experience with Selenium, Rest-Assured, and API testing

• Familiarity with Spring, Postman, and Allure (bonus) • Understanding of microservices and event-driven architecture (Kafka is a plus)

• Proficiency with SQL for data validation

• Experience with version control (Git) and CI/CD tools (e.g., GitLab, Jenkins)

• A detail-oriented mindset and strong communication skills

• English C1 is a must

• Based in Barcelona or open to relocating there (hybrid setup)

Desirable Skills

• Have experience testing distributed systems

• Have built or maintained test automation frameworks from scratch

• Enjoy bringing structure and clarity to complex systems