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# Senior Java Engineer

- **Company:** Faktion
- **Location:** Antwerpen, Belgium
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Artificial Intelligence, Software Quality, Code Review, Monitoring of Systems, Junit, Machine Learning, Performance Tuning, Software Architecture, Mockito, Software Systems, Postman, Backend, Integration Tests
- **Published:** July 7, 2026
- **Apply:** https://be.engineering.jobs/nl/vacature/senior-java-engineer-7944034

## About the Role

Engineering, JUnit

## Description

Join Faktion, a leader in designing and developing enterprise-level AI solutions across various sectors. We are at the forefront of machine learning and artificial intelligence, creating innovative solutions that drive the future.

We are looking for a Senior Java Engineer to join our dynamic team, provide technical leadership. As we are building enterprise-grade, production-deployed applications, we are looking for an experienced engineer who can guide the development of robust, secure, and scalable backend systems while mentoring team members.

***Key responsibilities:***

 * Lead the design, development, and deployment of high-quality software architecture for complex, scalable backend applications built on Java and the Spring ecosystem.

 * Collaborate closely with AI and ML engineers, Product Managers, and Business Stakeholders to translate complex requirements into efficient, high-quality software solutions.

 * Contribute to and help define maintenance standards across projects ranging from new applications and functionalities to complex cross-project developments.

 * You know how to test your software using JUnit, Mockito, ... You have experience setting up automated integration tests using Postman or other libraries

 * Lead code reviews, provide constructive feedback, and ensure code quality, maintainability, and scalability.

 * Ensure comprehensive documentation of architectural decisions, development phases, and system designs; contribute to system monitoring, performance optimization, and incident resolution.

 * Coach and mentor junior developers, fostering a culture of technical excellence, collaboration, and continuous improvement.

 * Drive technical innovation, evaluate and recommend new technologies, and promote best practices within the engineering team.


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