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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Developer - **Company:** Intero Integrity - **Location:** Tricht, Netherlands - **Experience:** Expert - **Salary:** €6,933.0 - **Contract:** Permanent contract - **Skills:** ASP.NET, .NET Framework, Data Analysis, Software Applications, Computer Vision, Automation of Tests, Microsoft Azure, C Sharp (Programming Language), Cloud Engineering, Software Quality, Code Review, Continuous Integration, Software Design Patterns, Web Development, Medical Software, Machine Learning, Windows Presentation Foundation, Software Architecture, Signal Processing, Data Streaming, Strategies of Testing, Web Applications, Restful APIs, Serverless Computing - **Published:** August 24, 2026 - **Apply:** https://nl.indeed.com/viewjob?jk=80a4e3dc9e8299e3 ## About the Role Technical expertise * Extensive experience with C# and the .NET platform * Solid knowledge of software architecture, design principles and design patterns * Experience building web applications and REST APIs (ASP.NET) * Experience writing maintainable, testable, high-quality software * Experience with automated testing and CI/CD * The ability to mentor others and lift the level of a team * Good communication skills and the ability to clearly substantiate technical choices A plus * Experience with cloud development, preferably Azure * Experience with machine learning and/or image recognition, and operationalizing ML in production * Affinity with signal processing, measurement data and data streams, preferably in an industrial or technical context * Experience with WPF and complex desktop applications * Experience in a domain where software quality and reliability have direct impact (industrial automation, medical software, measurement & inspection or similar) When do we see you as a senior? For us, seniority goes beyond years of experience or technical skill. We are looking for someone who understands that technical choices affect the product, the organization and our customers, and who actively takes responsibility for that. ## Description This is a role for a senior engineer who enjoys both sides of the craft: building excellent software, and helping people around you get better. You will work hands-on on the C#/.NET software behind our data analysis, turning large volumes of ultrasonic inspection data into reliable insights that our organisation uses worldwide. What makes it attractive is the mix. You mentor and guide our internal developers, setting an example in how we design, review and test. At the same time you work side by side with our external development partners. Learning from them, challenging them and making sure the work meets a high bar. You'll grow as an engineer and as a mentor, often in the same week., * You design, build and maintain C# applications for the analysis and reporting of inspection data * You work with large volumes of ultrasonic signal data and binary data streams * You build web applications and REST APIs on the ASP.NET platform * You contribute to bringing machine learning / Human-in-the-Loop capabilities into the data analysis workflow * You work with cloud-native services, preferably on Azure * You contribute to test strategies at functional, integration and system level, with an eye for the safety-critical use of the software * You work closely with hardware engineers, test engineers and domain specialists (UT inspection) Mentorship & working with partners * You mentor and coach our internal developers and help them grow their technical skills * You lead by example in code reviews, pairing and knowledge sharing * You work side by side with external development partners, challenging their choices and making sure the work meets a high standard * You help establish and document engineering standards: coding guidelines, review processes, testing strategies and release policy * You make sure design decisions and domain knowledge are documented and transferable, so the team can operate independently * You help shape a development culture where quality and continuous improvement are the norm ## Related Videos - [Why Your Best Mediors Never Become Seniors (And How to Fix It)](https://www.wearedevelopers.com/videos/2108-why-your-best-mediors-never-become-seniors-and-how-to-fix-it) - [Rest API Antipatterns](https://www.wearedevelopers.com/videos/100208-rest-api-antipatterns) - [Are Code Reviews Worth It? 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