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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Tester (.NET/C#) - **Company:** Trigyn Technologies, Inc - **Location:** Hamburg, Germany (Remote available) - **Experience:** Expert - **Salary:** €26,000.0 - €39,000.0 - **Contract:** Temporary contract - **Skills:** Testing (Software), ASP.NET, HTML, JavaScript (Programming Language), .NET Framework, Microsoft Windows, Artificial Intelligence, Automation of Tests, Unit Testing, Microsoft Azure, C Sharp (Programming Language), Information Systems, Computer Programming, Databases, Database Queries, Database Testing, DevOps, Entity Framework, Systems Analysis, Windows Presentation Foundation, Team Foundation Server, Oracle Databases, Regression Testing, Standard Sql, Service-Oriented Architecture, Software Systems, PL-SQL, SQL Databases, Software Testing Automation Framework, Web Applications, Web Services, Windows Forms, Extensible Markup Language (XML), Appium, Large Language Models, Test Scripts, AngularJS, Integration Tests, Microsoft Test Manager, Information Technology, Playwright, Microsoft Tfs, Build Tools, Selenium Webdriver, Network Server, Api Management, Atlassian Bamboo, Web Api - **Published:** August 12, 2026 - **Apply:** https://de.indeed.com/viewjob?jk=5fb3098c6e28c513 ## About the Role * University degree (Bachelor's degree or equivalent) in computer science, information systems or related field * International Software Testing Qualifications Board (ISTQB) certification or the equivalent working experience is desirable. * Certification in C#.NET technologies is desirable. Experience: * A minimum of 7 years of relevant technical experience in systems analysis, development and programming or testing using Microsoft .NET/C#, SQL, is required. (from test automation perspective) * Experience in using LLMs and AI agents * Working knowledge of SQL and of Oracle database servers. * A minimum of 7 years of experience in Manual / Automation Testing is required. * Experience in test automation using selenium webdriver with Microsoft .NET/C# is required. * Proficiency with test automation frameworks and test automation tools is required. * Experience developing and executing manual and automated test suites is required. * Ability to create and update test automation standards, policies and test scripts is required. * Ability to work in multicultural environment is require * Experience in Database and API Testing is required * Practical experience and knowledge of Test Management tools such as Microsoft Test Manager, is desirable. * Experience using Playwright for automating Windows/Web applications is desirable. * Experience using Appium for automating Windows application is desirable. * Experience with build tools such as Microsoft TFS is desirable. * Experience of working with Windows forms development is desirable. * Experience in SOA, XML is desirable. Language: English and French are the working languages. Fluency in English is required. ## Description 1. Test and automate windows applications, web applications and web services using Microsoft .NET technologies (ASP.NET, Windows WPF, C#), PL-SQL, Entity Framework, WebApi, and Angular (2+), Microsoft Playwright, Microsoft Azure Devops, in addition to other basic technologies such as: HTML, JavaScript. 2. Manual Testing for releases 3. Create, update and maintain test cases for various features of applications 4. Writing SQL queries for testing various functionalities for database testing 5. Creating and maintaining Regression test plans 6. Risk based testing 7. Review requirements, specifications, and other project documentation to assure quality of the products and identify relevant automated tests to be developed; 8. Develop, review, and validate test scripts and test plans for all phases of testing, 9. Create and manage various test environment setups 10. Develop report or metrics about the testing 11. Propose and build test automation; Provide leadership with the development, implementation and maintenance of an automated test infrastructure to increase efficiency of the testing processes, implement means of regression test automation in TFS test plans or TFS/Azure pipelines. 12. Review requirements, specifications, and other project documentation to assure quality of the products and identify relevant automated tests to be developed; 13. Support manual QA testing efforts in conversion of manual test cases into automated ones 14. Develop, review, and validate test scripts and test plans for all phases of testing, including unit testing, user acceptance testing, integration testing and reliability/security testing. 15. Create and manage various test environment setups 16. Consult colleagues concerning QA and testing of software systems 17. Have experience in tesing Windows based applications 18. Develop report or metrics about the testing 19. Any other test related activity as directed 20. Writing Automated Tests using LLMs ## Related Videos - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [Testing .NET applications a Tool box for every developer](https://www.wearedevelopers.com/videos/704-testing-net-applications-a-tool-box-for-every-developer) - [NoLoJS - Avoiding JavaScript Cruft with HTML and CSS - Aaron T. 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