Senior Java Developer: Backend, APIs & Microservices

Onepoint; Brussel Hoofdstad; On-site; EUR 70,000 - 110,000; Full time

Job summary

Onepoint is seeking a senior Java developer to design, implement, and maintain backend services with Spring Boot while building RESTful APIs to support web and mobile applications. You will also contribute to frontend work using Angular, collaborate on architecture decisions, and ensure code quality through best practices and CI/CD.

The role focuses on enterprise-grade systems, performance, security, and maintainability, with agile team collaboration and opportunities to mentor junior developers.

Qualifications

• 5+ years of professional experience as a Java developer.
• Strong experience with Spring / Spring Boot and RESTful API development.
• Solid frontend experience with Angular or willingness to focus on Angular.
• Experience with enterprise-grade applications emphasizing performance, security, and maintainability.

Responsibilities

• Design, develop and maintain backend services using Java and related frameworks.
• Build and enhance RESTful APIs for web and mobile apps.
• Develop responsive frontend interfaces using Angular or similar frameworks.
• Participate in technical design and architecture discussions.

Skills

Java

Spring / Spring Boot

RESTful APIs

Angular

Microservices

SQL / ORM

CI/CD

Agile/Scrum

Tools

Angular

Spring Boot

Hibernate/JPA

Kafka

RabbitMQ

Job description

Onepoint is seeking a senior Java developer to design, implement, and maintain backend services with Spring Boot while building RESTful APIs to support web and mobile applications. You will also contribute to frontend work using Angular, collaborate on architecture decisions, and ensure code quality through best practices and CI/CD.

The role focuses on enterprise-grade systems, performance, security, and maintainability, with agile team collaboration and opportunities to mentor junior developers.