Medior Backend .NET Developer

keystone-solutions; Brussel; Sur place; EUR 50 000 - 60 000; Plein temps

Résumé du poste

Keystone Solutions is seeking a Medior Backend .NET Developer for a consultancy mission at a client site in Belgium. You will develop core business applications, deliver REST services with .NET technologies, and collaborate with analysts, architects and fellow developers.

Responsibilities include interpreting UML/BPMN models, managing SQL Server and Oracle databases, applying design patterns, and using EF Core, WebAPI, WCF, and Azure DevOps in a fast-paced, client-focused environment.

Qualifications

• Experience developing maintainable, high-performance .NET applications.
• Knowledge of SOLID principles and OO design best practices.
• Experience in Agile/Scrum environments and unit testing.

Responsabilités

• Understand and interpret UML and BPMN models.
• 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 data formats.
• Utilize WebAPI, WCF REST, WCF, and Web Services.
• Utilize Entity Framework Core.
• Utilize Azure DevOps with GIT and TFVC.
• Practical knowledge of Redgate tools is a plus.

Connaissances

.NET

.NET Core

Agile

Azure DevOps

Entity Framework Core

GIT

JSON

RESTful API

Scrum

Soap API

SOLID

Sprint

UML

Visual Studio

XML

Outils

Azure DevOps

Visual Studio

GIT

SQL Server

Oracle

Description du poste

Mission Overview:

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.

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.
• 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.

Additional Skills:

• 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.

Expected Qualities:

• 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.

Duration:

01/10/2026 - 31/12/2026 3 months (full time)

Skills required:

• .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

Language requirements:

Dutch
Level Passive knowledge
English
Level Passive knowledge
French
Level Native