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Capgemini · Diegem

.NET Software Engineer

DiegemSoftware Engineering

Listed on Capgemini’s official careers site. Listed as of October 18, 2026. Check that it is still open and apply there.

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Job description

Choosing Capgemini means choosing a company where you will be empowered to shape your career in the way you’d like, where you’ll be supported and inspired by a collaborative community of colleagues around the world, and where you’ll be able to reimagine what’s possible. Join us and help the world’s leading organizations unlock the value of technology and build a more sustainable, more inclusive world. YOUR ROLEAs a .NET Software Engineer at Capgemini, you design and build scalable, high-quality software solutions.

You work closely with business and technical stakeholders to translate requirements into robust, maintainable and future-proof applications.You operate in modern engineering environments at the intersection of cloud, microservices and AI-enabled development, contributing across the full software lifecycle while ensuring solutions are secure, reliable and aligned with enterprise standards. Your key responsibilitiesDevelop and maintain scalable .NET applications aligned with functional and non-functional requirementsEnsure high-quality deliverables through testing (unit and integration), code reviews and engineering best practicesContribute to solution design and provide technical input on architecture (microservices, APIs, cloud-native)Build and expose robust APIs using ASP.NET Core, following REST and

OpenAPI standardsImplement secure applications using modern authentication and authorization mechanisms (OIDC, OAuth2, JWT, claims)Leverage modern tooling and AI-assisted development practices to optimize productivity and qualityYOUR PROFILEYou have strong experience in C# and modern .NET, including recent versions such as .NET 8/10, building enterprise-grade applicationsYou have proven expertise in ASP.NET Core, Web APIs, MVC and RESTful services, including

Swagger/OpenAPI, experience with Blazor and any other modern front-end framework (Angular, React, Vue, ...)You have obtained a solid knowledge of Entity Framework Core and SQL Server, including data modeling and performance optimizationYou have experience with modern development practices: testing (unit/integration), CI/CD, DevOps, and cloud platforms (preferably Azure)You have a professional working proficiency in Dutch and English.

French constitutes an asset.WHAT YOU'LL LOVE ABOUT WORKING HEREVariety of projects to expand expertise and new opportunities to growCertification programs and opportunities to learnFlexibility to work the way that works for you with hybrid working policies and FlexAbroad programABOUT CAPGEMINICapgemini is an AI-powered global business and technology transformation partner, delivering tangible business value. We imagine the future of organizations and make it real with AI, technology and people.

With our strong heritage of nearly 60 years, we are a responsible and diverse group of 420,000 team members in more than 50 countries. We deliver end-to-end services and solutions with our deep industry expertise and strong partner ecosystem, leveraging our capabilities across strategy, technology, design, engineering and business operations.Make it real | www.capgemini.com

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