ASP.NET MVC C# /.NET Developer

Ypto; Brussel Hoofdstad; Hybride; EUR 65 000 - 90 000; Plein temps

Avantages offerts par ce poste

Remote work + flexible hours

35 days of leave

Company car + public transport season

Bonus target

Insurance package (family coverage)

Meal vouchers

Eco-vouchers

Résumé du poste

We are looking for a Medior ASP.NET MVC C# / .NET Developer to strengthen our Web Team’s ongoing digital evolution near Brussels. With 5+ years of experience, you will build scalable, reliable and user-centric web platforms.

Your expertise in web development, API integration, scripting and modern engineering practices will accelerate web initiatives and deliver high-quality experiences. CMS experience is a plus and collaboration with cross-functional teams is key.

Qualifications

• 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, HTML 5.
• Experience with CMS platforms (Sitecore, Umbraco, Optimizely, Episerver) is a plus.
• Minimum 1 year hands-on experience with TypeScript/JavaScript/Angular/React.

Responsabilités

• Drive development within .NET web projects, delivering robust components and APIs.
• Oversee frontend and backend performance improvements for reliability and maintainability.
• Collaborate with UI/UX, architecture, and integration teams for smooth data flows.
• Translate requirements into clean, scalable code and define coding standards.
• Ensure quality through automated testing, code reviews and CI practices.
• Stay updated with .NET trends and introduce new technologies and methodologies.
• Mentor junior developers and foster a collaborative engineering culture.

Connaissances

ASP.NET MVC

C# / .NET

Web Development

RESTful services

CI/CD

Git

SQL Servers

CSS/HTML

TypeScript/JavaScript/Angular/React

CMS experience

Outils

ASP.NET MVC

.NET Core

SQL Server

PostgreSQL

EF Core

Git

CI/CD tools

Description du poste

How do you help make a difference?

We arelooking for aMediorASP.NETMVCC# /.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, anduser‑centricweb platforms.

Yourexpertiseinwebdevelopment, API integration,scriptinglanguagesand modern engineering practices will help us accelerate our web initiatives and deliverhigh‑quality, seamless digital experiences. Experience with content management systems (CMS) is a strong plus.

What is your role at SNCB?

As aMediorASP.NETMVCC# /.NET Developeryou will take on the following responsibilities:

WebDevelopment:

Drive development within ourweb.NET projects, delivering robustweb componentsand APIs that power modern web applications.

Performance & Reliability:

Oversee the evaluation, improvement, and monitoring offrontend andbackend performance, ensuring reliability, stability, and maintainability.

API & System Integration:

Collaborate closely withUI/UX, architecture, and integration teams to deliver smooth,real‑timedata 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 .NETweband backend engineering, helping the team adoptnew 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 ofhands‑onexperience inASP.NET MVCC# /.NETwebdevelopment.

• 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, HTML 5.

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

• Minimum 1 year of hands‑on experience withtypescripst/javascript/ angular / react

Technical Skills

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

• KnowledgeregardingCI/CD pipelines andexpertiseusingversion 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.

• Proficiencyin English isa mustand Dutch or French one is desirable.

Additional

• Experience providing L2/L3 support in a production environmentis 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. That'swhy we believeit’simportant that you can be yourself — it makes SNCB/NMBS stronger. We therefore placegreat 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;

• net allowances for remote working and carwash + internet budget.

Where will you be working?

You will work near Brussels-South station.

What’s next?

1. You apply online.

1. We take a close look at your CV and check whether it matches the profile you are looking for. We may call you briefly to ask about your motivation and experience.

1. We invite you for a first (online) HR interview where you can demonstrate your motivation, experience and expectations.

1. If the first interview is positive, we invite you for a second technical interview in Brussels. This interview will be with the team, where we’ll discuss the role and how your skills align with the team’s needs.

1. If everything goes well, we will make you a contract offer.

1. You start your new job!

We reserve the right to adjust or pause this procedure if necessary. Our recruitment team will select the profiles that best match the job requirements to ensure an optimal fit.

Do you have any further questions?

Mail: [e-mail]