Medior Backend .NET Developer

BelgiumBelgium·Brusselsmid
.Net DeveloperSoftware Engineering
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Quick Summary

Key Responsibilities

Understand and interpret UML and BPMN models. Manage and utilize SQL Server databases from version 2016 to 2025. Manage and utilize Oracle databases from version 19.

Requirements Summary

DutchLevel Passive knowledgeEnglishLevel Passive knowledgeFrenchLevel Native

Technical Tools
.Net DeveloperSoftware Engineering

Keystone Solutions is seeking a Medior Backend .NET Developer for a consultancy mission at a client site. In this role, you will be responsible for the development of core business applications, working on dynamic projects that offer a variety of challenges across different client environments.


Responsibilities

~1 min read
  • Understand and interpret UML and BPMN models.
  • Manage and utilize SQL Server databases from version 2016 to 2025.
  • Manage and utilize Oracle databases from version 19.
  • Apply design patterns based on architect recommendations.
  • Develop REST services using .NET Framework and .NET 8 and above.
  • Develop interfaces in ASP.NET WebForms / MVC, .NET 4.5 and above.
  • Work with XML and JSON.
  • Utilize W3C standards.
  • Work with WebAPI, WCF REST, WCF, and Web Services.
  • Utilize Azure DevOps with GIT and TFVC.
  • Practical knowledge of Redgate tools is a plus.
  • Utilize Entity Framework Core.

  • Ability to develop maintainable, high-performance code that adheres to team development standards.
  • Experience in corrective and evolutionary maintenance of existing applications.
  • Knowledge of SOLID principles and best practices in object-oriented development.
  • Experience in writing and executing unit tests.
  • Ability to diagnose and resolve technical incidents.
  • Experience working in an Agile (Scrum) environment.

  • Autonomy in carrying out assigned developments.
  • Analytical and problem-solving mindset.
  • Ability to collaborate effectively with analysts, architects, and other developers.
  • Strong communication skills and a team-oriented approach.
  • Rigorous, proactive, and quality-oriented.

As a consultant at Keystone Solutions, you will experience turbo-charged learning and career growth opportunities while embodying our core values in every engagement. If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today at Keystone Solutions Career Portal.


  • .Net - Level: Confirmed - Most recent: This year
  • .NET Core - Level: Confirmed - Most recent: This year
  • Agile - Level: Confirmed - Most recent: Any time
  • Azure DevOps - Level: Confirmed - Most recent: This year
  • Entity Framework Core - Level: Confirmed - Most recent: Any time
  • GIT - Level: Confirmed - Most recent: 1 to 3 years ago
  • JSON - Level: Confirmed - Most recent: This year
  • RESTful API - Level: Confirmed - Most recent: 1 to 3 years ago
  • Scrum - Level: Confirmed - Most recent: This year
  • Soap API - Level: Nice to have - Most recent: Any time
  • SOLID - Level: Confirmed - Most recent: Any time
  • Sprint - Level: Confirmed - Most recent: Any time
  • UML - Level: Nice to have - Most recent: Any time
  • Visual Studio - Level: Confirmed - Most recent: 1 to 3 years ago
  • XML - Level: Confirmed - Most recent: Any time

Requirements

~1 min read

Dutch
Level Passive knowledge
English
Level Passive knowledge
French
Level Native

Location & Eligibility

Where is the job
Brussels, Belgium
On-site at the office
Who can apply
BE

Listing Details

First seen
September 4, 2026
Last seen
September 4, 2026

Posting Health

Days active
0
Repost count
0
Trust Level
51%
Scored at
September 4, 2026

Signal breakdown

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keystone-solutionsMedior Backend .NET Developer