About RMT Labs

RMT Labs SA is a Luxembourg-based research and technology company building the future of hiring in Europe. We operate two complementary brands: Talent Quanta, a profitable recruitment and ICT-consulting business serving clients across Europe since 2022, and Skillbourg, an AI-powered talent platform born from that real-world recruitment intelligence.

About the role

As a .NET Developer in our consulting engineering team, you will build and maintain business applications for international clients, working in mixed teams across Luxembourg and Bucharest. You will work with C# and ASP.NET Core on real production systems, alongside senior developers, QA and a project lead, and you will be in direct contact with client stakeholders.

What you will do

• Build and maintain web applications and REST APIs with C# and ASP.NET Core

• Work with SQL Server and Entity Framework Core to design and query data

• Write clean, well-tested code and take part in code reviews

• Fix bugs and improve the performance of existing applications

• Work in agile sprints with colleagues in Luxembourg and Bucharest and with client teams

• Document your work so it is easy to maintain and hand over

What you bring

• 3+ years of professional experience with C# and .NET

• Hands-on experience with ASP.NET Core and Web APIs

• Good knowledge of SQL Server or another relational database

• Experience with Entity Framework Core, Git and unit testing (xUnit or NUnit)

• Solid understanding of object-oriented design and clean code principles

• You work well remotely: you communicate clearly, plan your own work and ask when something is unclear

Nice to have

• Experience with Azure or Docker

• Front-end experience with Angular, React or Blazor

• Previous projects for public-sector, EU institution or banking clients

• Curiosity about AI and LLM-based tools in software development

Skills we're looking for

Technical skills

• .NET
• C#
• ASP.NET Core
• Microsoft SQL Server
• Entity Framework

Interpersonal skills

• Stakeholder Management
• Cross-Functional Collaboration
• Teamwork
• Written Communication
• Work Autonomy