Test Automation Engineer - Remote Eligible

Test Automation Engineer

The future of rail isn't just about movement, it's about intelligence, security, and connection. We unite rail expertise with digital innovation to create smarter, safer, and more sustainable transportation solutions. Technology here speaks with purpose: accelerating digitalization, embedding cybersecurity, and shaping the next era of rail.

Behind every breakthrough are people, their talent, creativity, and drive to push boundaries. Together, we're building confidence, resilience, and a new standard for connected mobility powered by innovation.

This position is for Stadler Digital Labs, a joint venture between Stadler Rail and Critical Software serving as the digital competence center for the Stadler Group.

Are you the Test Automation Engineer that we've been looking for?

Key Responsibilities:

• Design, develop, and maintain automated test suites for UI end-to-end testing using Playwright, ensuring comprehensive coverage of user-facing functionality across web applications.
• Implement and maintain API test automation using tools such as Postman and/or REST Assured, validating endpoints, contracts, and integration flows.
• Integrate automated tests into CI/CD pipelines (GitHub Actions, Jenkins) to enable fast feedback loops within the development workflow.
• Collaborate closely with developers, product owners, and UX designers to understand acceptance criteria and translate them into actionable, maintainable test cases.
• Analyse and report test results clearly, track defects with appropriate severity and reproducibility information, and follow up until resolution.
• Participate in sprint planning, reviews, and retrospectives, contributing a quality-first perspective throughout the software development lifecycle.
• Contribute to the continuous improvement of the test framework architecture, tooling standards, and automation best practices within the team.
• Perform exploratory and regression testing as needed to complement automated coverage.

Which brings us to you, the person with:

• Degree in Computer Science, Software Engineering, Informatics, or a related technical field (or equivalent demonstrated experience).
• 1–2 years of experience in software testing or QA roles, including academic projects, internships, or professional experience.
• Solid understanding of software testing fundamentals: test planning, test case design, defect lifecycle, and quality assurance principles.
• Hands-on experience or strong academic exposure to Playwright for browser-based end-to-end test automation.
• Experience with API testing concepts and tools (Postman and/or REST Assured); familiarity with REST API design and HTTP protocols.
• Basic to intermediate proficiency in JavaScript/TypeScript or Python for scripting and test development.
• Familiarity with version control workflows using Git (branching, pull requests, code reviews).
• Understanding of Agile/Scrum methodologies and working in iterative delivery cycles.
• Clear and concise when reporting test findings, raising risks, or asking for clarification.
• Ability to deconstruct complex system behaviours and identify edge cases.
• English- Professional working proficiency (written and spoken); primary working language
• Demonstrates awareness of AI trends (including agentic AI), with curiosity and motivation to explore how they can enhance products, processes, or ways of working;
• Shows a learning mindset toward emerging technologies and an openness to experiment, adapt, and continuously upskill in an AI enabled environment.

What we provide:

• Work that fits your life, not the other way around
• Offices designed to make you feel like you belong
• A team that knows how to work hard, but also how to have fun
• Pay that makes you feel valued, plus performance-based rewards
• Your growth is our priority: training, support, and opportunities!

Critical Software is proud to be a Benefit Corporation. A Benefit Corporation differs from a standard corporation: It is a for-profit business entity, legally defined in the US and other jurisdictions, whose legally defined goals include the positive impact on society, workers, the community and the environment, in addition to profit.

We are an equal opportunity workplace and committed to allow candidates with disabilities or neurodevelopmental conditions to prove their competencies to their full potential. We are willing to move the barriers that may prevent you from demonstrating that you are the right candidate for this role, so please let us know if you need some adjustment in your recruitment process. By applying to a position at Critical Software, you are deemed to have accepted our Privacy Policy.