Senior Quality Engineer | C# / Node.js & IoT Microservices x 1 FTE

Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams. Discover our latest job openings: https://en.antal.pl/candidates Follow us on LinkedIn: https://www.linkedin.com/company/antalpoland

Senior Quality Engineer | Backend & IoT Platforms We are looking for a Senior Quality Engineer to support testing and quality assurance activities for modern backend and IoT-based solutions running in cloud environments. This role combines automated testing, backend validation, and close cooperation with development teams working on distributed microservices architecture. Additional information Work mode: Fully remote or hybrid (Wrocław) Rate: 100–120 PLN/h Responsibilities Develop and maintain automated test solutions using C#/.NET or Node.js technologies. Verify and test REST APIs, backend integrations, and asynchronous communication flows. Analyze and validate data consistency across relational and NoSQL databases. Support testing processes within containerized and CI/CD-based environments. Collaborate with developers, analysts, and stakeholders to ensure software quality and delivery standards. Maintain technical documentation and track progress using Jira and Confluence. Requirements Strong programming skills in C# or Node.js/JavaScript combined with backend testing experience. Practical knowledge of microservices architecture, REST APIs, and cloud-based solutions. Hands-on experience with Azure environments and backend integration testing. Familiarity with Docker, RabbitMQ, and Redis. Experience working with MSSQL and MongoDB databases. Understanding of CI/CD pipelines and tools such as Azure DevOps or Jenkins. Experience working in Agile/Scrum teams. Nice to have ISTQB Advanced Technical Test Analyst certification. Familiarity with IoT communication protocols such as MQTT. Experience with testing frameworks including xUnit, NUnit, Mocha, or Jest.