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

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 haveISTQB Advanced Technical Test Analyst certification.Familiarity with IoT communication protocols such as MQTT.Experience with testing frameworks including xUnit, NUnit, Mocha, or Jest. 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 ,[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: C#, Node.js, JavaScript, Microservices, REST API, Cloud-based solutions, Azure, Docker, RabbitMQ, Redis, MSSQL, MongoDB, CI/CD Pipelines, Azure DevOps, Jenkins, Agile/Scrum, ISTQB, Technical Test Analyst, IoT, MQTT, xUnit, NUnit, Mocha, Jest