Trading Platform Architect
We're enhancing a high-performance trading platform for a leading financial services client. This project involves re-engineering and evolving core backend systems to support new features, stronger security, and faster processing.
This is a deep technical ownership role that requires delivering high-quality, production-grade code handling concurrency, persistence, and performance under serious load. You'll work closely with experienced engineers to analyse existing architecture, identify bottlenecks or risks, and rebuild key components without introducing instability.
* Proven experience in Java web services and server-side development
* Deep understanding of concurrency, multithreading, and secure coding practices
* Experience with Java Persistence frameworks like JPA or Hibernate
* Strong SQL knowledge
* Prior exposure to financial systems or trading platforms
This is a full-time, freelance role operating on a hybrid basis in Portugal.
The ideal candidate will have expertise in modern Java technologies and a strong background in software engineering principles. If you've successfully re-architected part of a live platform before, especially one handling real-time data, we'd love to hear from you.