ASP.NET MVC C#

How do you help make a difference?

We are looking for a Medior ASP.NET MVC C# / .NET Developer to strengthen our Web Team’s ongoing digital evolution. With at least 5 years of experience, you have mastered the .NET ecosystem and built scalable, reliable, and user-centric web platforms.

Your expertise in web development, API integration, scripting languages, and modern engineering practices will help us accelerate our web initiatives and deliver high-quality, seamless digital experiences. Experience with content management systems (CMS) is a strong plus.

Role at SNCB

As a Medior ASP.NET MVC C# / .NET Developer you will take on the following responsibilities:

Web Development

• Drive development within our web .NET projects, delivering robust web components and APIs that power modern web applications.

Performance & Reliability

• Oversee the evaluation, improvement, and monitoring of frontend and backend performance, ensuring reliability, stability, and maintainability.

API & System Integration

• Collaborate closely with UI/UX, architecture, and integration teams to deliver smooth, real-time data flows across systems.

Technical Implementation Excellence

• Translate technical requirements into clean, efficient, and scalable code, while helping define coding standards and best practices for the team.

Testing & Quality Assurance

• Ensure high quality through automated testing, code reviews, and continuous integration practices. Support the team in building secure and maintainable solutions.

Continuous Improvement

• Stay ahead of the latest trends in .NET web and backend engineering, helping the team adopt new technologies, frameworks, and methodologies.

Communication & Mentorship

• Share progress, highlight risks, and solve problems proactively. Mentor junior developers and cultivate a collaborative engineering culture.

Why is this job a good fit for you?

• Minimum 5 years of hands-on experience in ASP.NET MVC C# / .NET web development.

• Strong command of .NET 6+, .NET Core, ASP.NET MVC, Web API, and RESTful services.

• Experience with relational databases (SQL Server, PostgreSQL) and ORM frameworks (EF Core).

• Experience with CSS/SCSS, HTML5.

• Experience with CMS platforms is a nice-to-have (e.g., Sitecore, Umbraco, Optimizely, Episerver).

• Minimum 1 year of hands-on experience with TypeScript/JavaScript/Angular/React.

Technical Skills

• Solid understanding of application architecture, design patterns, and modern development principles.

• Knowledge of CI/CD pipelines and expertise using version control (Git).

• Strong grasp of performance optimization and troubleshooting techniques.

Ways of Working

• Solid grounding in Agile methodologies and iterative delivery.

• Ability to collaborate with cross-functional teams and contribute to a positive, learning-focused team culture.

• Strong multitasking abilities and adaptability to dynamic work environments.

Communication

• Excellent communication skills, capable of explaining complex topics clearly.

• Proficiency in English is a must and Dutch or French is desirable.

Additional

• Experience providing L2/L3 support in a production environment is a nice-to-have.

• This role may require flexible availability outside of working hours at specific points in time (such as system go-lives).

Everyone is unique. We believe it’s important that you can be yourself — it makes SNCB/NMBS stronger. We therefore place great value on diversity and inclusion.

What can you expect from us?

Within our open corporate culture, you contribute to the digital transformation of SNCB/NMBS. You will have a job with social impact and ample opportunity to make your own contribution. In addition to a good work-life balance and a competitive salary, you will receive the following benefits:

• The possibility to work remotely + flexible working hours;

• 35 days of leave;

• A company car + a public transport season ticket;

• A target bonus;

• A comprehensive insurance package (affiliation without own contribution, excl. outpatient costs for family members);

• Hospitalisation and dental care for the whole family;

• Outpatient costs (medical costs separate from hospitalisation);

• Group insurance: supplementary pension, work disability and death (cafeteria plan);

• Accidents at work (extralegal);

• Meal vouchers and eco-vouchers;<