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June 22, 2026

Senior Java Developer/Tech Lead

Senior • Hybrid

40,000 - 52,000 PLN

Warsaw, Poland

Responsibilities

  • Develop and enhance high-performance components within a low-latency trading environment.
  • Drive delivery of key engineering initiatives across the full lifecycle — from concept and design to deployment and support.
  • Take ownership of complex technical areas, working cross-functionally with engineering and business stakeholders.
  • Contribute to architectural decisions and help evolve engineering standards and best practices.
  • Support and guide other engineers through knowledge sharing, collaboration, and hands-on problem solving.
  • Participate in design discussions and code reviews to ensure high-quality solutions.
  • Continuously improve system performance, scalability, and reliability.
  • Work closely with business teams to translate requirements into technical solutions.
  • Contribute to the ongoing modernization and simplification of existing systems and platforms.

Requirements

  • 8+ years of experience in software development, with a strong focus on Java.
  • Solid understanding of concurrent and multithreaded programming.
  • Experience in building financial/trading systems is a big plus.
  • Experience in building distributed systems.
  • Proven ability to deliver complex technical solutions.
  • Experience working in collaborative, cross-functional environments.
  • Strong communication skills.
  • Ability to work effectively in dynamic, fast-paced environments.
  • Familiarity with modern development tools, including AI-supported solutions.
  • Exposure to or willingness to work with technologies beyond Java.