Senior QA Automation Engineer (Contract)

At Scale Tech (Award Winning Development Agency), we are partnering with a Scandinavian cyber security company specializing in mobile application security to find an experienced QA Automation Engineer for a fully remote freelance opportunity.

Contract - Freelance (Full-time) Working Method - Full remote Contract Length - Long-term, indefinite. Hourly rate - 30-40 EUR/Hour

About the role: We’re looking for a hands-on QA Automation Engineer with strong front-end (UI) testing expertise who takes quality seriously and isn’t afraid to advocate for it.

This role requires someone who is confident in their technical judgment and comfortable challenging decisions, blocking releases when necessary, and voicing strong, experience-based opinions to ensure the highest quality standards.

You’ll work closely with developers to design, build, and maintain automated test suites across the full application stack — with a particular emphasis on UI/browser testing , supported by API and performance testing.

This is a role for someone who is self-motivated, quality-driven, and comfortable working independently within a collaborative Agile environment.

What you will do: Browser & Front-End Testing (Primary Focus)

Perform cross-browser testing across Chrome, Firefox, Safari , Edge, and others

Validate front-end functionality, UI consistency, responsiveness, and accessibility basics

Build and maintain automated UI tests using tools such as Playwright or Selenium

Identify and report UI/UX , rendering, and performance issues early

End-to-End Testing

Design and maintain E2E test scenarios covering complete user workflows

Integrate automated tests into CI/CD pipelines in collaboration with developers

API Testing

Create and maintain API test cases using tools such as Postman or similar

Validate authentication, data integrity, error handling, and response behavior

Ensure consistent and correct API responses across edge cases

Performance & Stress Testing

Execute performance tests using tools like k6 or Apache JMeter

Simulate load and stress scenarios to evaluate system limits

Collaborate with developers to identify and resolve bottlenecks

Troubleshooting & Collaboration

Reproduce and investigate issues across UI, API, and system levels

Work closely with developers to resolve defects efficiently

Act as a quality gatekeeper — confidently raise concerns and block releases when necessary

AI-Augmented Testing

Leverage AI tools to improve test coverage, design, debugging, and productivity

What We're Looking For: Strong experience in UI/browser automation testing (primary focus)

Good understanding of API testing (tool-agnostic — flexibility is valued more than specific tools like Postman )

Exposure to performance and stress testing tools (e.g. k6, Apache JMeter)

Experience integrating tests into CI/CD pipelines

Understanding of 3-layer application architecture (frontend, backend, data)

Familiarity with SDLC and Agile/Scrum practices

Nice to Have: Experience with load testing at scale

Accessibility testing knowledge

Contributions to QA process improvements or test strategy

Mindset & Personality: Strong quality-first mindset — you proactively identify risks and edge cases

Confident communicator who can challenge decisions and defend quality standards

Comfortable blocking releases or pushing back on teams when needed

Able to clearly express opinions based on experience and data

Self-driven, yet collaborative

Why Join Us: Work in a collaborative, engineering-driven team that values quality

Meaningful ownership of the QA process — your work directly impacts the product

Modern tech stack and room to grow your automation skills

Flexible working environment

If you care about quality as much as we do — we'd love to hear from you.