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# C# Developer Consultant

- **Company:** Keystone Solutions
- **Location:** Charleroi, Belgium
- **Experience:** Starter
- **Contract:** Temporary contract
- **Skills:** ASP.NET, .NET Framework, Application Programming Interfaces (APIs), ASP.NET MVC Framework, JIRA, Microsoft Azure, C Sharp (Programming Language), Databases, Web Development, Entity Framework, Human-Computer Interaction, PostgreSQL, Nunit, Object-Relational Mapping, Scrum Methodology, Blazor, Xunit, Front End Software Development, Restful APIs, User Administration, Web Api
- **Published:** October 2, 2026
- **Apply:** https://www.adzuna.be/details/5907619428

## About the Role

* Agile / Scrum - Level: Confirmed - Most recent: Any time
 * C# - Level: Confirmed - Most recent: Any time
 * JIRA - Level: Junior - Most recent: Any time
 * ORM (object-relational mapping) - Level: Confirmed - Most recent: Any time
 * Postgres - Level: Confirmed - Most recent: Any time
 * Web development - Level: Confirmed - Most recent: Any time

Language requirements:

French
Level Active knowledge

## Description

We are seeking to enhance and extend the functionalities of an existing course management platform developed in C# with a PostgreSQL database. This consultancy mission at a client site representing Keystone Solutions aims to optimize the experience for both teachers and students.

Consultancy Nature: As a consultant, you will work on-site, collaborating closely with a team to deliver impactful solutions.

Dynamic Projects: You will face diverse challenges across various client environments, ensuring no two days are the same.

Turbo-Charged Learning: This role offers extensive professional development and broad learning experiences, enhancing your skill set.

Skyrocketing Ambition: At Keystone Solutions, we are committed to your career growth within our framework.

Values: Being a "K-Stone" means bringing our core values to every engagement., * Develop new features in C#.

 * Optimize PostgreSQL queries to improve performance.
 * Implement the RESTful API for integration with other educational tools.
 * Create user interfaces for new functionalities.

Key Steps:

 * Analyze existing systems and gather educational needs.
 * Design new functionalities.
 * Develop extensions.
 * Conduct testing, optimization, and integration.

Technical Requirements:

 * Main Language: C#
 * Framework: .NET (version to be specified according to existing setup)
 * Database: PostgreSQL
 * ORM: Entity Framework Core
 * Frontend: ASP.NET Core MVC or Blazor (depending on existing architecture)
 * API: ASP.NET Core Web API
 * Testing: NUnit or xUnit
 * Project Management: Azure DevOps or Jira

Technical Constraints:

 * Ensure compatibility with the existing version of C# and .NET.
 * Optimize PostgreSQL queries to handle a large number of users and courses.
 * Adhere to security and privacy standards for educational data.
 * Ensure accessibility of new features for all users.
 * Design an intuitive and responsive user interface.

If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today at Keystone Solutions Career Portal.


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