Senior Java Software Engineer

We are looking for an experienced Senior developer to work on a successful trading electronic dealing platform. We are looking for a seasoned leading candidate with experience in Java core (Java SE), multithreading, concurrency, and performance. Good understanding of how the JVM behaves behind the scenes (Garbage Collections, Memory Model, JIT compilation, cache‑oblivious algorithms). Ability to design highly loaded, low‑latency applications and to refactor old designs to new ones. We also have a part of the project written in. NET, so C# experience is much appreciated. Candidate will act in a multirole capacity – workout requirements, implement, test, confirm with business, release, and participate in L3 PROD support routine. Knowledge of financial products, electronic/exchange trading, business analysis (user stories), system design, non‑functional management, SDLC, and QA would be highly beneficial. Hybrid work regime – Lisbon.

Main Tasks:

• Responsible for the development and maintenance of the trading platform
• Ensure the platform is developed and maintained to the highest standards of quality, security, and performance
• Participate in an agile‑based software development life cycle including technical analysis, documentation, development, testing, and code reviews
• Collaborate with the production support team for release and maintenance of the components

Technical Skills:

• At least 5 years software development experience, with at least 2 years as an IT team lead
• Experience with electronic trading platforms or related load and time‑critical systems
• Experience in migration or refactoring projects to new technologies