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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # NET C# developer (REF2679) - **Company:** Keystone Solutions - **Location:** Brussel, Belgium (Remote available) - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** ASP.NET, .NET Framework, Adobe InDesign, Application Programming Interfaces (APIs), Agile Methodology, Application Performance Management, ASP.NET MVC Framework, Automation of Tests, Unit Testing, Microsoft Azure, C Sharp (Programming Language), Software Quality, Continuous Integration, Relational Databases, Distributed Systems, Key Management, Microsoft SQL Server, Object-Oriented Software Development, Scrum Methodology, E2e Testing, Software Engineering, ReactJS, Servicebus, Event Driven Architecture, Integration Tests, Solid Principles, Kubernetes, Information Technology, Serverless Computing, Docker, Web Api - **Published:** July 11, 2026 - **Apply:** https://be.indeed.com/viewjob?jk=9d1c67684425c21a ## About the Role * You have at least 3 years of practical experience in C#.Net development * You have detailed knowledge of the .NET framework and surrounding ecosystem. * You have a strong foundation in OOP, in particular regarding C#. * You are acquinted with modern software design principles - i.e. SOLID, Gang of Four, event-driven systems, etc. * You have experience with ASP.NET WebApi and ASP.NET MVC. * You have experience with relational databases, preferably SQL server. * You have experience with CI pipelines, in particular Azure DevOps. * You are familiar with distributed system design and messaging technology. * Experience with .NET 10 is a plus. * Experience with NServiceBus is a plus. * Experience with Azure cloud platform is a plus * - i.e. App Services, Application Insights, Azure Key Vault, Azure Functions, ServicesBus, etc. * Experience with Docker is a plus. * Experience with React is a plus * Experience with Kubernetes is a plus Education & Soft-Skills: * You have a Bachelor's degree - Computer Science, MIS or equivalent * You are fluent in both spoken and written English. * French speaking is a plus * You can work independently but are also a team player. * You are conscientious and act professional. * You are motivated and have a positive mindset. * You do not shy away from asking difficult questions. * You are Customer centric * You are Solutions Minded * You have abilities to learn quickly * You are organized * You have verbal and written communication skills * You have real-world experience with Agile development methodologies such as Scrum ## Description As a Keystone Solutions consultant, you will join a consultancy mission to support our client in the mobility sector. The client is a key player in mobility offering more than 1000 parking lots across 9 European countries and is transforming to become a more digitally oriented player. You will contribute as a C#/.NET Developer within agile development teams, performing the responsibilities below under Keystone Solutions' consultancy model while working closely with the client., * You develop, extend, maintain and monitor applications within the domain. * You automate testing in all its forms in order to increase both code quality and application reliability, i.e., Unit-testing, integration testing, end-to-end testing, etc. * You write maintainable documentation for both existing software and new developments. * You collaborate with domain experts and business analysts in extracting requirements from user and business requests. * You participate in design discussions (high- and low-level) regarding application transformations as well as greenfield development. * You start initiatives to improve development processes, testing, operational management and infrastructure. * You try to reduce the amount of existing manual operational tasks as much as possible through automation. * You help set up inter-team communication channels for coordination regarding API changes, deployments, bugs, etc. All the above responsibilities will be performed as a Keystone Solutions consultant, working closely with the client's teams and stakeholders., * Home working: 2 days/week - On site 3 days/week (mandatory) at the client site as part of the consultancy mission. Dynamic Projects: As a Keystone Solutions consultant, you will have the opportunity to contribute to client initiatives that span application development, testing automation, and distributed systems-enhancing your exposure to diverse technical challenges within the client's environment. Turbo-Charged Learning and Development: Working through Keystone Solutions enables broad learning experiences across modern .NET practices and adjacent technologies present in the client context, supporting continuous professional growth through hands-on, real-world engagements. Ambition Skyrocketing within a Consultancy Framework: Keystone Solutions fosters career growth by enabling consultants to tackle impactful client problems, drive improvements, and refine their craft across a variety of project scopes, from greenfield development to application transformations. Keystone Solutions Values in Action: Being a K-Stone means bringing customer centricity, solution-minded thinking, professionalism, and collaboration to every client interaction-ensuring high-quality delivery and lasting impact on each engagement. ## Related Videos - [Watch Tests Go Brrrr! : Getting Started with Cypress in ReactJS](https://www.wearedevelopers.com/videos/282-watch-tests-go-brrrr-getting-started-with-cypress-in-reactjs) - [Web APIs you might not know about](https://www.wearedevelopers.com/videos/281-web-apis-you-might-not-know-about) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [Project Fugu: Extending the web](https://www.wearedevelopers.com/videos/832-project-fugu-extending-the-web) - [Local Candidates vs International Talent - Building the Very Best Dev Team](https://www.wearedevelopers.com/videos/1067-local-candidates-vs-international-talent-building-the-very-best-dev-team) ## Related Articles - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [The Netherlands – Europe’s powerhouse for software development?](https://www.wearedevelopers.com/magazine/31-the-netherlands-europe-s-powerhouse-for-software-development) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers)