April 8, 2026

Senior Test Automation Engineer – SDET IV (f/m/x)

Senior • Remote

Warsaw, Poland

We are looking for a highly experienced Senior Test Automation Engineer (SDET IV) to join a long‑term project delivered by Sii for an international organization developing large‑scale, high‑traffic fraud and regulatory platforms. In this role, you will influence architecture decisions, shape quality engineering strategy, and design next‑generation automation frameworks for complex, distributed microservices.

You will work in a modern cloud environment (AWS/GCP, Kubernetes) and collaborate closely with Engineering and Product teams in an Agile setup. The position offers strong development opportunities through Sii’s certification programs and technology partnerships.

If you want to drive reliability, shift-left practices, and automation excellence - apply now!

Your tasks

  • Lead architecture and design reviews, ensuring testability, observability, and reliability of distributed microservices and event-driven systems

  • Design, develop, and evolve scalable, self-healing automation frameworks supporting CI/CD and high‑concurrency workflows

  • Own and optimize the quality infrastructure, including automated test creation, execution, monitoring, and global trend analysis

  • Drive shift‑left practices, reliability engineering, and proactive testing approaches such as chaos principles and performance validation

  • Collaborate within Agile teams to define test strategies, release readiness criteria, quality KPIs, and maintain high-quality technical documentation

Requirements

  • At least 5 years of experience in test automation, SDET, or similar engineering roles

  • Strong expertise in building automation frameworks for distributed systems (Python, Java or Go) and working with CI/CD pipelines

  • Hands-on experience with cloud and container technologies (AWS or GCP, Kubernetes, Docker)

  • Solid understanding of microservices, infrastructure‑as‑code, and observability concepts; ability to analyze root causes of failures

  • English proficiency at B2/C1 level

  • Residing in Poland required

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Warsaw, Poland

900 - 900 PLN

🏢 Summary: Senior Test Automation Engineer responsible for owning and improving team-level test automation processes and building scalable automated testing frameworks from scratch. The role focuses on front-end automation, close collaboration across the SDLC, and driving best practices in CI/CD-driven quality engineering. You will design robust automation architectures and integrate them with modern development and test management ecosystems. 🗂️ Requirements: 3–7 years of experience in Test Automation, Strong hands-on experience in Front-End test automation, Experience with Playwright, Experience building automation frameworks from scratch, Ability to define automation architecture and best practices, Experience with CI/CD pipelines, Knowledge of TDD and BDD, Proficiency in Java or C# or Python, Experience integrating automation with test management tools 📃 Skills: Playwright, Java, C#, Python, CI/CD, TDD, BDD, AzureDevOps, Jira, ISTQB, SDLC 🏢 Description: As a Senior Test Automation Engineer, you will take ownership of test automation processes at the team level and contribute to the continuous improvement of quality assurance practices. You will work closely with developers, product owners, and stakeholders throughout the SDLC to ensure stable and scalable automated testing solutions. Key Responsibilities Take ownership of testing processes at the production team level. Design, build, and maintain automated test frameworks from scratch. Lead and support testers to ensure effective implementation of testing practices. Collaborate with stakeholders across all phases of the SDLC, including test strategy, approach definition, and risk management. Ensure timely delivery of tasks and provide regular progress/status updates. Mentor and guide junior and mid-level automation engineers. Required Skills & Qualifications 3–7 years of focused experience in Test Automation . Strong hands-on experience in Front-End test automation , preferably using Playwright . Proven experience in building automation frameworks from scratch, including defining architecture and best practices. Strong understanding of modern engineering practices such as: CI/CD pipelines TDD (Test-Driven Development) BDD (Behaviour-Driven Development) Solid programming skills in Java (preferred) or C# / Python . Experience integrating automation solutions with test management tools . Strong leadership and mentoring skills. English communication level B2+ (international collaboration environment). Willingness to travel occasionally to client locations. Preferred / Nice-to-Have ISTQB Foundation certification. Experience in the Financial Services or Insurance industry. Experience with test and project management tools such as: Azure DevOps Jira CI/CD toolchains Personal Attributes Proactive mindset and strong ownership of deliverables. Willingness to learn and continuously improve testing skills. Open to working with international teams and multicultural environments.