C# Engineer — Hybrid Work & Impactful Projects

ALTEN; Rotterdam, Den Haag; Hybrid; EUR 55,000 - 75,000; Full time

Benefits offered by this job

Lease car with fuel card

Hybrid working

Monthly net expense allowance

27 vacation days (+10)

Job summary

ALTEN in Rotterdam is seeking a skilled C# Software Engineer to work on high-tech client projects across various industries. You will design, develop, and maintain C# applications within the .NET ecosystem, translating specs into robust code and resolving complex technical challenges.

We expect 3+ years in C#/.NET, strong OO design, and proficiency in English. A hybrid work model, career development, and a diverse project portfolio await you in the Netherlands.

Qualifications

• 3+ years of professional experience in C#/.NET development.
• Bachelor’s or Master’s degree in CS/SE or related.
• Strong understanding of OOP, design patterns, and software architecture.
• Experience with modern .NET frameworks, tooling, and workflows.
• Fluent in English (spoken and written).

Responsibilities

• Design, develop, and maintain high-quality C# applications on the .NET ecosystem.
• Translate technical specifications into robust, scalable code and troubleshoot complex issues.
• Ensure code quality with unit tests and code reviews.
• Collaborate with cross-functional teams for reliable end-to-end solutions.
• Leverage your C++ knowledge for native integration where needed.

Skills

C# / .NET

OO programming

Design patterns

Software architecture

English proficiency

Problem solving

C++ knowledge

Education

Bachelor's or Master's in CS/SE or related

Tools

.NET tooling

Unit testing

CI/CD

Job description

ALTEN in Rotterdam is seeking a skilled C# Software Engineer to work on high-tech client projects across various industries. You will design, develop, and maintain C# applications within the .NET ecosystem, translating specs into robust code and resolving complex technical challenges.

We expect 3+ years in C#/.NET, strong OO design, and proficiency in English. A hybrid work model, career development, and a diverse project portfolio await you in the Netherlands.