Senior .NET Developer INM000386

Itproposal; Brussel Hoofdstad; Hybride; EUR 70 000 - 100 000; Plein temps

Résumé du poste

Itproposal in Brussels, Belgium is seeking an experienced Senior .NET Developer to design, develop, and maintain robust software solutions using Microsoft technologies.

The role blends hands-on development with technical design, code quality, and mentoring. You will work with cross-functional teams to deliver scalable, secure software and continually improve engineering practices.

Qualifications

• Strong professional experience with .NET development.
• Expertise in .NET Framework and .NET Core.
• Analytical, problem-solving mindset and solution-oriented.
• Experience with technical leadership and mentoring.
• Knowledge of software quality, security, performance and best practices.
• Ability to adapt to changing technical and business environments.
• French or Dutch – C2 level; English – C1 level.

Responsabilités

• Develop software components using .NET Framework and .NET Core.
• Design scalable, maintainable, and secure solutions.
• Translate functional requirements into technical solutions.
• Perform code reviews and promote development best practices.
• Mentor and technically coach team members.
• Ensure application quality, performance, security, and maintainability.
• Analyse and optimise system performance.
• Evaluate and introduce new technologies aligned with business needs.
• Collaborate closely with architects and other technical stakeholders.

Connaissances

.NET development

.NET Framework & .NET Core

Mentoring

Software quality & security

Problem solving

Adaptability

French or Dutch (C2)

English (C1)

Description du poste

Senior .NET Developer

We are looking for an experienced Senior .NET Developer to design, develop, and maintain robust software solutions using Microsoft technologies. The role combines hands‑on development, technical design, code quality, and technical mentoring.

Key Responsibilities

• Develop software components using .NET Framework and .NET Core.
• Design scalable, maintainable, and secure solutions.
• Translate functional requirements into technical solutions.
• Perform code reviews and promote development best practices.
• Mentor and technically coach team members.
• Ensure application quality, performance, security, and maintainability.
• Analyse and optimise system performance.
• Evaluate and introduce new technologies aligned with business needs.
• Collaborate closely with architects and other technical stakeholders.

Requirements

• Strong professional experience with .NET development.
• Expertise in .NET Framework and .NET Core.
• Strong analytical, problem‑solving, and solution‑oriented mindset.
• Experience with technical leadership and mentoring.
• Good understanding of software quality, security, performance, and best practices.
• Ability to adapt to changing technical and business environments.
• French or Dutch – C2 level.
• English – C1 level.

Location: Brussels, Belgium
Work Arrangement: Hybrid / remote work possible
Start Date: 14 September 2026