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
What We Do
Scale3C is Mobile development and Outsourcing company based in Northern Europe with clients from USA, Canada and Europe. Main services: - UX/UI design - Staff augmentation / Out staffing / Outsourcing - Mobile development - Product management
