Freelance .NET Developer — Hybrid, Brussels

Smile Open Source Solutions; Sint-Pieters-Woluwe; Ibrido; EUR 52.000 - 90.000; Part-time

Descrizione del lavoro

Smile Open Source Solutions in Brussels is seeking a talented .NET Developer (Freelance) to join our dynamic team on high-impact projects for a major client. The role is hybrid (2-3 days remote per week) with responsibilities spanning design, development, and mentoring for senior profiles.

The candidate will work with C#, .NET Core / .NET 6+, ASP.NET Core, and EF, building RESTful APIs, microservices, and modern cloud-based solutions while collaborating with cross-functional teams in an Agile

Competenze

• Proficient in C# and .NET ecosystem (Core / 6+)
• Experience building RESTful APIs and microservices
• Familiar with CI/CD pipelines and cloud tooling
• Strong problem-solving and teamwork
• Fluent in English, French/Dutch a plus

Mansioni

• Designing and developing robust, scalable .NET applications and APIs
• Building and maintaining RESTful APIs and microservices with ASP.NET Core
• Ensuring code quality via testing and CI/CD pipelines
• Collaborating with Frontend, PO, and DevOps teams
• Mentoring juniors for senior profiles (if applicable)
• Optimizing performance, security, and reliability

Conoscenze

C#

ASP.NET Core

REST APIs

CI/CD

Agile

Team player

English fluency

Strumenti

Azure

Docker

Kubernetes

Git

Azure DevOps

GitHub Actions

SQL Server

PostgreSQL

Cosmos DB

Descrizione del lavoro

Smile Open Source Solutions in Brussels is seeking a talented .NET Developer (Freelance) to join our dynamic team on high-impact projects for a major client. The role is hybrid (2-3 days remote per week) with responsibilities spanning design, development, and mentoring for senior profiles.

The candidate will work with C#, .NET Core / .NET 6+, ASP.NET Core, and EF, building RESTful APIs, microservices, and modern cloud-based solutions while collaborating with cross-functional teams in an Agile