Senior Java Backend Engineer | Spring, Microservices, REST

Onepoint; Zele; On-site; EUR 70,000 - 95,000; Full time

Job summary

Onepoint is seeking a skilled Java developer to design, develop and maintain backend services using Java (8+) and Spring Boot, and to build robust RESTful APIs that empower web and mobile applications.

You will contribute to frontend with Angular, participate in architectural discussions, ensure performance and security, write clean, well‑documented code, and collaborate closely with product owners, analysts and fellow developers to deliver high‑quality features.

Qualifications

• 5+ years of professional Java development experience.
• Strong Spring/Spring Boot and REST API skills.
• Experience with Angular frontend.
• Enterprise app experience focusing on performance, security, maintainability.

Responsibilities

• Design, develop and maintain backend services with Java.
• Build and enhance RESTful APIs.
• Develop frontend with Angular.
• Participate in technical design and architecture discussions.
• Write clean, tested, documented code.
• Collaborate with product owners and other developers to refine requirements.
• Troubleshoot, debug and resolve complex issues across the stack.
• Mentor junior developers and participate in code reviews.
• Contribute to CI/CD, release management and process improvements.

Skills

Java

Spring Boot

REST APIs

Angular

SQL databases

CI/CD

Agile/Scrum

Tools

JPA/Hibernate

Kafka

OAuth2/JWT

Job description

Onepoint is seeking a skilled Java developer to design, develop and maintain backend services using Java (8+) and Spring Boot, and to build robust RESTful APIs that empower web and mobile applications.

You will contribute to frontend with Angular, participate in architectural discussions, ensure performance and security, write clean, well‑documented code, and collaborate closely with product owners, analysts and fellow developers to deliver high‑quality features.