Keystone Solutions

C# Developer Consultant

Keystone Solutions  •  Charleroi, BE (Onsite)  •  1 day ago
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Job Description

Mission Overview:

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.

Responsibilities:

  • 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.

Duration: 02/11/2026 - 31/12/2027 14 months • (part time 3/5)

Skills required:

  • 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

Keystone Solutions

About Keystone Solutions

At Keystone Solutions, we specialize in bridging technology and talent to deliver a seamless IT experience.

With a focus on efficiency and innovation, we streamline your IT services, ensuring that you can focus on what you do best while we handle the complexities of your IT ecosystem. From strategic planning through to execution, we are your partners in creating a harmonious technological environment that propels your business forward.

Our Services:

- Hyperautomation: Embrace efficiency with Keystone Solutions' hyperautomation. Integrating Al, ML, and RPA, we automate and optimize your business processes, elevating operational excellence and decision-making.

- IT Consulting: Our IT consultancy at Keystone Solutions navigates you through the complexities of technology. We provide strategic insights, from system architecture to digital transformation, fueling your business growth.

- Software Development: Keystone Solutions excels in crafting custom software tailored to your needs. From innovative apps to system integrations, we transform your ideas into dynamic digital solutions.

- IT Security: Secure your digital landscape with Keystone Solutions. We offer comprehensive cybersecurity measures, from risk assessments to incident response, safeguarding your data and operations.

Industry
Unknown
Company Size
11-50 employees
Headquarters
Brussels, BE
Year Founded
2014
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