Integration .NET Developer

Founded in 2005 in Lisbon by three visionary entrepreneurs, MoOngy quickly became a leading group in Engineering and Information Technology (IT) across Europe and North Africa. Today, with a presence in 14 countries and more than 40 subsidiary companies, MoOngy employs over 9,500 talents who share a common passion for innovation and excellence.

The International Mobility Recruitment Department is dedicated to enhancing the mobility of IT professionals throughout Europe, facilitating the placement of talents in the various markets where it operates.

Integration .NET Developer

Location: Brussels, Belgium

Hybrid: 2 times a week on the client’s office

Languages: French (C1) + English (C1) | Dutch (A2) is a plus

Candidates must possess a valid work permit for Belgium

The ideal candidate will have hands-on expertise in developing APIs and batch systems, along with strong knowledge of integration and infrastructure aspects.

This role requires strong problem-solving skills, the ability to collaborate across teams, and solid experience in the Microsoft development ecosystem.

Required Skills and Experience:

✅2–5 years of experience as a .NET Developer (APIs or batch systems).

✅Strong experience with projects involving integration & infrastructure aspects.

✅Solid knowledge of web services using .NET WCF technology.

✅Good knowledge of REST APIs (JSON, Swagger).

✅Proficiency with XML technologies (XSD, XSLT, XPath, etc.).

✅Experience in .NET C# & .NET Framework (4.0 and higher).

✅Very good knowledge of the Microsoft development ecosystem (Visual Studio, TFS, VSTS)

✅Knowledge of authentication/authorization standards (SAML, OAuth, etc.).

Is a plus if you have:

✅Experience with batch scheduler integration (e.g., Control-M)

✅Experience integrating with Mainframe z/OS applications.

✅Experience with SQL Server SSIS.

✅Experience with automated performance & load testing.

What You’ll Be Doing

• Design, develop, and maintain integration solutions using .NET technologies.
• Implement and support APIs, REST services, and batch systems.
• Contribute to projects involving multiple technology platforms and external solutions.
• Work with infrastructure teams to ensure robust and scalable integration.
• Ensure code quality, documentation, and adherence to development best practices.
• Collaborate with cross-functional teams to define and implement technical solutions.

Advantages of joining MoOngy:

International Mobility: Access to a dedicated international mobility department with personalized relocation programs to facilitate your move to a new country.

Career Development: Opportunities to work on projects with cutting-edge technologies in different countries and various sectors.

Continuous Learning: Access to ongoing and free training and career-oriented certifications.

Personal Growth: Exchange of ideas and best practices among professionals across Europe, fostering creativity and innovation in IT.

Global Citizen in the World of Technology: Opportunity to work in a global network of companies, with access to a wide range of challenging projects in different European markets.

@MoOngy Group we stand for equality and value diversity. We create a safe, diverse environment where opportunities are equal for everyone! We do not discriminate based on age, ethnicity, sexual orientation, gender, disability, or any factor other than merit. All applications with skills needed for the position are welcome!