Mid Fullstack Developer (C#.NET + React or Angular + Dutch)

Founded in 2020 in Belgium, ATS4IT is part of the Moongy Group, established to strengthen agap2IT’s presence in Europe. Since 2021 we expanded further with the opening of our Danish branch in Copenhagen, and our Spanish brand in Madrid, reinforcing our commitment to being a key player in the European technology landscape. Proximity, transparency, and collaboration define our approach at ATS. We aim to be your trusted partner and the first choice for your technological challenges

Mid Fullstack Developer (C#.NET + React or Angular + Dutch) - Deadline for submission of applications: 11/03/2025

Location: Brussels, Belgium

Hybrid (2 - 3 times a week in the client office)

Client Sector: Sports

Type of Contract: Permanent Contract preferably

Mandatory Languages: Dutch (C2 or Native) + English (C2)

Eligibility: Candidates must possess European nationality or a valid work permit for Belgium.

Must-Have Requirements:

Backend:

• 3 to 4 years of proven experience in developing .NET-based applications
• Hands-on experience with programming languages and frameworks such as .Net (C#), ASP.NET, and T-SQL
• Familiarity with developing and consuming REST APIs
• Experience using version control systems (GIT or SVN)
• Experience with tracking tools like Jira, Youtrack or TFS

Frontend:

• Strong knowledge of JavaScript and jQuery
• Previous experience with frontend frameworks like React or Angular

Others:

• Knowledge and application of Agile/Scrum methodology

Nice-to-Have Skills:

• Knowledge of Dependency Injection (DI) and Inversion of Control (IoC)
• Experience with Test-Driven Development (TDD), unit testing, and mocks
• Ability to efficiently and independently handle programming tasks, including coding, testing, and debugging
• Previous experience with .NET Core and Blazor
• Knowledge of development with Node.js

Key Responsibilities:

- Project Participation & Development: Analyzes user requests, collaborates with project managers, and develops applications with IT teams and relevant departments.

- Testing & Maintenance: Writes and executes test scenarios, corrects bugs, upgrades systems, and maintains operational documentation.

- Application & Interface Development: Designs, develops, and integrates internal and external applications, ensuring compatibility with existing systems.

- System Analysis & Software Management: Installs, configures, and maintains software, troubleshoots application issues, and optimizes data storage and exchange.

- IT Security Management: Develops, maintains, and enhances IT security systems to ensure data protection and system integrity

At Moongy Group, we advocate for equality and diversity. We create an inclusive and safe environment where everyone has an equal opportunity. We do not discriminate based on age, origin, gender, disability, sexual orientation, or any factor other than merit. If you have the required skills, we encourage you to apply.