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We are looking for a Medior / Senior Java Back-end Developer with 5 to 7 years of experience to join the IT teams of a well-known bank in Luxembourg.
In this role, you will play a key part in the design, development, and evolution of robust backend systems supporting critical business applications. You will work in a secure, regulated environment where code quality, performance, and reliability are essential.
Missions
In this role, you will play a key part in the design, development, and evolution of robust backend systems supporting critical business applications. You will work in a secure, regulated environment where code quality, performance, and reliability are essential.
Missions
- Designing, developing, and maintaining scalable, high-performance Java applications
- Leading the development of RESTful APIs and backend services for business-critical systems
- Contributing to the definition of technical architecture and best practices
- Ensuring code quality through reviews, testing strategies, and clean code principles
- Optimizing applications for performance, scalability, and security
- Integrating third-party APIs and internal banking systems
- Maintaining, refactoring, and modernizing existing and legacy applications
- Troubleshooting complex production issues and ensuring high availability
- Collaborating closely with product owners, architects, QA, and DevOps teams
- Mentoring junior developers and sharing technical knowledge within the team
- Actively participating in agile ceremonies and continuous improvement initiatives
- Bachelor's or Master's degree in Computer Science, Engineering, or a related field
- 5 to 7 years of professional experience as a Java Back-end Developer
- Strong expertise in Java (Java 8+) and object-oriented design principles
- Solid experience with Spring Boot, Spring Framework, and related ecosystems
- Strong understanding of RESTful APIs, microservices architecture, and backend design patterns
- Proven experience with SQL databases (PostgreSQL, MySQL, Oracle, or similar)
- Experience with version control systems such as Git
- Good knowledge of the software development life cycle and agile methodologies (Scrum, Kanban)
- Hands-on experience with unit and integration testing (JUnit, Mockito, etc.)
- Ability to analyze, debug, and resolve complex technical issues
- Strong communication skills and ability to work with both technical and non-technical stakeholders
- Experience with CI/CD pipelines (Jenkins, GitHub Actions, GitLab CI, etc.) is a strong plus
- Knowledge of containerization (Docker, Kubernetes) and cloud environments is an asset
- Working in a Great Place to Work based in Luxembourg.
- Attractive salary and pretty cool benefits (meal vouchers, mobile subscription...).
- Develop your skills and ideas over a coffee, a beer or a pizza during our Neo'vations.
- Evolve within a strong company culture, you'll join us for the opportunity and you'll stay because we're super cool (well according to 98% of our employees NEOFACTO Annual Survey 2024).
- Between afterworks, innovative workshops and ski weekends, there's never a dull moment when you're part of the Neo'Squad.
- The pre-qualification interview with our Recruitment Manager
- Technical tests
- Receipt of our salary proposal / exclusivity agreement
- 2nd interview with our Business Manager
- Proposal of your application to the client
- Interview at the client's premises, which can be conducted either by video or in person.
Key Skills
Ranked by relevance
java
restful apis
high availability
containerization
design patterns
microservices
spring boot
kubernetes
postgresql
gitlab ci
jenkins
docker
devops
oracle
gitlab
mysql
cloud
scrum
junit
cicd
git
sql
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- Posted
- Dec 18, 2025
- Type
- Full-time
- Level
- Entry
- Location
- Luxembourg
- Company
- NEOFACTO
Industries
IT Services
IT Consulting
Categories
Engineering
Information Technology
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3 roles aligned with this opportunity
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