Integration Engineer

Uni Systems

Brussels, Brussels, Belgium Hybrid permanent

Posted: April 1, 2026

Required Skills

Job Description

At Uni Systems, we are working towards turning digital visions into reality. We are continuously growing and we are looking for a professional Integration Engineer to join our UniQue Brussels team.

What will you be bringing to the team?

• Design, plan, implement integration strategies and patterns in a JEE/HTTP secured ecosystem.
• Apply best practices of distributed architecture to solve complex integration problems between information systems.
• Design, implement and document APIs to be exposed in a secured manner on a public facing API Gateway.
• Design, implement and document business events to be easily produced on a corporate event-streaming platform and consumed by any system from EC.
• Design, plan, implement and deploy workflows: business process definition and task definition (service or user tasks) relying on APIs and business events.
• Work in a container based infrastructure.
• Development of microfrontends

Requirements:
What do you need to succeed in this position?

• Master’s degree with 9 years of experience, or Bachelor’s degree with 13 years of experience.
• At least 5 years of front-end experience with Angular, AngularJS, React.
• Excellent knowledge of Angular (latest versions), RxJS, Bootstrap, and TypeScript; experience with NgRx and Signals is a plus.
• Excellent understanding of HTTP and API design.
• Proficiency in JEE, REST or SOAP APIs, BPMN workflow engines, asynchronous messaging (Kafka, JMS), distributed/microservice architectures, GRPC/Protobuf, and cloud-native systems.
• Proficiency in integration testing, container-based/cloud-native architectures (Docker, Kubernetes), and web security standards, including OAuth2.0 and OpenID Connect.
• Strong understanding of SOLID principles and object-oriented programming.
• Good knowledge of English.
• Java development certification is considered an advantage.

At Uni Systems, we are providing equal employment opportunities and banning any form of discrimination on grounds of gender, religion, race, color, nationality, disability, social class, political beliefs, age, marital status, sexual orientation or any other characteristics. Take a look at our Diversity, Equality & Inclusion Policy for more information.

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