Lead Software Engineer (Java / Platform Modernization)

• *Willing to start a new freelance challange?**

Get in touch.

• *What You'll Do
• Lead the modernization of legacy Java-based systems to improve scalability, maintainability, and performance
• Design and evolve APIs that enable reliable data exchange across internal and external systems
• Improve system resilience by addressing bottlenecks, failure points, and performance issues
• Guide architectural decisions for distributed systems where consistency and data integrity matter
• Collaborate with product, DevOps, and QA to ensure systems are production-ready and compliant
• Mentor engineers and raise engineering standards across the team
• Ensure systems meet security and compliance requirements in a regulated environment
• *What you bring
• 10+ years in backend software engineering, with strong expertise in Java (Spring ecosystem)
• Proven experience modernizing or maintaining complex legacy systems
• Solid understanding of distributed systems (transactions, consistency, failure handling)
• Experience designing and evolving APIs in production environments
• Hands-on experience with relational databases (e.g. PostgreSQL or similar)
• Experience working in cross-functional teams (engineering, product, operations)
• Experience with containerized environments (Docker, Kubernetes)
• Exposure to cloud platforms (AWS or Azure)
• Experience with performance tuning in high-load systems
• Familiarity with security or compliance-driven environments
• Working knowledge of Python
• *Interested? Apply today!
• *myNEBIRU

: Not into this role, but interested in what NEBIRU does? That’s totally fine.

Visit https://nebiru.be/mynebiru to see how we can support you - even outside our client missions. Let’s build the bridge to your next step, together.