C#/.Net Full Stack Developer

Cldn; Town of Belgium (WI); On-site; USD 70,000 - 100,000; Full time

Benefits offered by this job

Eco vouchers

Sectoral bonus

Work-from-home allowance

5 extra days off

Flexible working hours

Company car with fuel card

Job summary

CLdN is looking for a C#/.Net Full Stack Developer to join their team in Belgium, Wisconsin. As a developer, you will collaborate closely with teams to ensure the design, implementation, and maintenance of crucial systems in C#/.NET. The role requires a minimum of three years of experience and proficiency in both Dutch and English.

CLdN offers a hybrid work model, competitive salary, insurance coverage, and additional benefits such as a company car and flexible working hours.

Qualifications

• Medior-level experience (at least 3 years) as a C#/.NET developer.
• Strong communication and influencing skills.
• Ability to work comfortably in Dutch and English.

Responsibilities

• Act as a key link between functional analysts and delivery teams.
• Design, build, and maintain mission-critical systems in C#/.NET.
• Collaborate in an Agile/DevOps way of working.

Skills

C#/.NET

Visual Studio

Azure DevOps

Git

ASP.NET Core

SQL Server

Blazor

Microservices architecture

Job description

CLdN is a leading provider of integrated quay-to-quay and door-to-door logistics solutions. Founded in 1929, CLdN ensures reliable, cost-effective transport linking Europe’s major economic areas. With more than 30 vessels and over 200 sailings per week, CLdN offers shortsea roll‑on/roll‑off (RoRo) connections between the European continent, the United Kingdom, Ireland, Iberia and Scandinavia. CLdN also offers the lowest CO₂ footprint of all Western European RoRo operators. Through an extensive network of ships, terminals and infrastructure, CLdN’s cargo and multimodal services have a strong Europe-wide reach. Our 3,000 employees help deliver our mission: to excel as an integrated provider of maritime links.

As a C#/.Net Full Stack Developer, you collaborate closely with developers and leverage your .NET expertise to support the Lead Solutions Architect in shaping and delivering robust solutions.

Your role

Act as a key link between functional analysts and delivery teams, ensuring shared understanding of needs, constraints and priorities.

Contribute to solution design: challenge assumptions, propose alternatives, and help shape a robust implementation approach.

Design, build and maintain mission‑critical systems in C#/.NET, with a strong focus on reliability, performance and long‑term maintainability.

Translate functional needs into clear technical solutions (components, services, interfaces, data flows), and support developers with practical guidance.

Ensure high engineering quality: code reviews, clean architecture, testing strategy (unit/integration), and structured validation before releases.

Collaborate in an Agile/DevOps way of working: contribute to refinement, estimates, delivery planning, and continuous improvement.

Troubleshoot complex issues across application, database and integration layers, and help prevent recurring incidents through improvements.

Share knowledge and raise the bar: mentor colleagues, document key decisions, and promote best practices across the team.

Your profile

Medior-level experience (at least 3 years) as a C#/.NET developer in an environment where quality, stability and delivery matter.

Strong communication and influencing skills: you can align people, explain trade‑offs, and keep discussions constructive.

You can work comfortably in Dutch and English.

You're pragmatic and hands‑on: you enjoy solving problems but also care about sustainable solutions.

Technical knowledge

• Strong knowledge of C# and .NET 8 or higher
• Solid working knowledge of Visual Studio
• Experience with Azure DevOps, including Boards, Repos and Pipelines/CI/CD
• Good knowledge of Git
• Experience with test mocking frameworks
• Knowledge of ASP.NET Core
• Experience with modern web frameworks
• Good understanding of SQL ServerFamiliarity with microservices architecture
• Understanding of domain‑driven design
• Experience with Blazor, preferably Blazor Server, is considered a strong asset

Our offer

Compensation & Additional Benefits

• Competitive gross monthly salary in line with your qualifications and experience
• Eco vouchers
• Sectoral bonus according to applicable sector regulations
• A work‑from‑home allowance for each day worked remotely
• Full‑time contract of 38 hours per week
• 5 extra days off in addition to statutory vacation days
• Hybrid working: max. 3 days per week after 6 months of service
• Work hours with flexible start (7:30-9:30 AM) and finish (4:00-6:00 PM)

Insurance

• Hospitalisation insurance with the option to add family members, with an additional contribution for each member included

Mobility

• Company car with fuel card, temporary company car at start
• After the initial period: option to order an electric car within our company car policy