Senior Software Development Engineer in Test (SDET) – C# / .NET

H2B Group is a consulting company assisting clients in automating business processes using AI and supporting IT professionals' careers on a B2B model. They offer projects across industries such as fintech, medtech, edutech, and industrial automation, focusing on delivering fast and measurable outcomes while providing IT specialists with career development opportunities.

• Minimum 4–5 years of experience as QA/Tester, including at least 2 years at a senior level.
• Strong programming skills in C# / .NET 10, familiarity with xUnit, Reqnroll, Shouldly, Cypress, and Playwright.
• Experience testing REST APIs and knowledge of TestContainers, Swagger, Postman, and Apidog.
• Practical experience with asynchronous messaging systems.
• Experience working in projects following Domain-Driven Design (DDD) principles.
• Experience creating and modifying pipelines in GitLab CI/CD or GitHub Actions, proficient with Git (Merge Requests, branch workflows).
• Knowledge of test management tools Jira and Xray for test design, reporting, and traceability.
• Experience working with Grafana for dashboards and alerts and good knowledge of SQL/PostgreSQL.

Nice to have:

• Basic knowledge of Docker, Kubernetes, OCP.
• Experience with performance testing tools (e.g., JMeter, k6).
• Knowledge of web technologies (HTML, CSS, JavaScript).
• Practical experience with BDD and test-first approaches.
• Openness to using AI tools in daily work (e.g., GitHub Copilot, large language models, QA process automation).
• Ability to set quality standards and mentor junior team members.

• Designing, creating, and maintaining automated scripts at UI, API, and E2E levels.
• Creating new test scenarios and test cases including functional, regression, integration, and UAT support.
• Testing distributed systems, inter-service integrations, and asynchronous/event-driven communication.
• Creating and modifying CI/CD pipelines and integrating automated tests into the software delivery process.
• Monitoring system metrics such as throughput, error rates, and processing delays on Grafana dashboards.
• Collaborating closely with developers and Product Owners to analyze business and technical requirements.

The role requires working remotely from Poland only; for security reasons, the client's equipment cannot leave the country. Data processing notice specifies that H2B Group Sp. z o.o. is the data administrator under applicable law.