Freelance .NET Core & AS400 Developer (Brussels) – 12+ Month Contract
Project Overview:
An established client in the finance sector is undertaking a critical modernization project to migrate their legacy AS400 database and RPG applications to a modern technology stack. The project involves transitioning from AS400 to .NET Core, MS SQL, and Azure, with a key focus on converting existing functionality into scalable web services.
Role & Responsibilities:
* Develop and maintain .NET Core applications to replace legacy AS400 RPG code.
* Migrate and refactor database components from AS400 to MS SQL Server hosted on Azure.
* Build, test, and deploy web services to ensure smooth integration of migrated components.
* Collaborate closely with the onsite team during scheduled days in Brussels/Vilvoorde (Tuesdays and Thursdays).
* Ensure high-quality, autonomous delivery aligned with project timelines and business requirements.
* Support knowledge transfer and documentation to facilitate long-term maintenance.
Requirements:
* Minimum 3 years of hands-on experience with .NET Core development.
* At least 6 months direct experience working with AS400 and RPG systems, with ability to understand and translate legacy code.
* Strong skills in database migration, particularly from AS400 to MS SQL and Azure environments.
* Fluent in English; Dutch and/or French language skills are a bonus.
* Self-motivated and capable of working independently without extensive supervision.
* Comfortable working within a dynamic project where timelines are accelerating following recent board reviews.
Bonus / Nice to Have:
* Experience with cloud platforms, particularly Microsoft Azure.
* Prior exposure to web services and API development.
* Excellent communication skills to engage with cross-functional teams and stakeholders.
Details:
* Start Date: Immediately
* Contract Length: 12 Months
* Contract Type: Freelance
* Location: Brussels
* Hours Per Week: Full Time
* Onsite Policy: Minimum 2 Days Per Week
* Language: English, French/Dutch is a Bonus.