Web Platform Developer C#

At RELYzIT, we don't recruit — we build.

We unite exceptional builders: engineers, architects, creators, across the BENELUX and the GCC.

Vetted through VECTOR7™'s multi-signal evaluation, you evaluate once and carry that credential forever.

This is more than work. This is where builders build the future.

Web Platform Developer C# - 14 months - Brabant Wallon Belgium

Freelance Position | Partial Remote

Intro

RELYzIT Talent is seeking a driven Web Platform Developer C# to join a high-impact mission for our client, focused on transforming the educational experience for teachers and students. As part of a dedicated team, you’ll help shape the next generation of course management platforms, delivering real value to users and building solutions that matter.

Why This Role Matters

Education is evolving, and so must the tools that empower it. Our client’s course management platform is the backbone for thousands of teachers and students. Your work will directly enhance learning outcomes, streamline teaching processes, and enable seamless integration with the broader educational ecosystem. This is your opportunity to drive meaningful change, ensuring every feature you build has a tangible impact on the future of education.

What You’ll Be Doing

• Analyze the existing C# and PostgreSQL-based course management system to identify opportunities for improvement and extension.


• Design and develop new functionalities, including:
  
  
  
  • Student progress tracking with personalized dashboards
  
  
  • Advanced course and session planning tools
  
  
  • Integrated communication systems (messaging, discussion forums)
  
  
  • RESTful API for integration with external educational tools
  
  
  
  


• Optimize PostgreSQL queries to ensure high performance and scalability for large user and course volumes.


• Implement intuitive, accessible, and responsive user interfaces using ASP.NET Core MVC or Blazor, aligned with the existing architecture.


• Ensure all new features comply with security, privacy, and accessibility standards for educational data.


• Collaborate closely with a Project Manager and Analyst (from your company) to ensure seamless delivery and mission success.


• Participate in Agile/Scrum ceremonies, leveraging tools like Azure DevOps or Jira for project tracking and delivery.


• Conduct thorough testing and integration using NUnit or xUnit to guarantee robust, production-ready solutions.

What We’re Looking For

• Proven experience in C# development, with a strong track record of delivering impactful web applications.


• Ownership mindset: you take initiative, solve problems proactively, and drive projects to completion.


• Ability to optimize and troubleshoot PostgreSQL queries for performance at scale.


• Experience designing and implementing RESTful APIs for integration with third-party tools.


• Strong understanding of web development best practices, including accessibility and responsive design.


• Collaborative spirit: you thrive in cross-functional teams and communicate effectively with both technical and non-technical stakeholders.


• Commitment to quality, security, and user-centric design.


• Experience working in Agile/Scrum environments.


• Ability to work partially remote, with occasional on-site collaboration as required.

Technical Skills

• C# (Confirmed)


• .NET Framework (version to be specified according to existing system)


• Entity Framework Core (ORM)


• PostgreSQL (Confirmed)


• ASP.NET Core MVC or Blazor (depending on existing architecture)


• ASP.NET Core Web API


• Web development (Confirmed)


• NUnit or xUnit (Testing)


• Azure DevOps or Jira (Junior level for Jira)


• Agile / Scrum (Confirmed)

Language Proficiency

• Professional proficiency in English (required)


• French or Dutch proficiency is a plus

Other Requirements

• This mission requires a team of three profiles (Project Manager, Analyst, Developer) from the same company to ensure seamless collaboration and execution. Applications not meeting this requirement will be automatically rejected.


• Ability to ensure compatibility with the existing C# and .NET versions.


• Demonstrated experience in designing accessible and secure educational platforms.


• Strong commitment to delivering intuitive, user-friendly interfaces.