Lead Java Backend Developer

We are seeking a Lead Java Backend Developer to join the team building a new Currency Administration (FX hedging/overlay) platform. This system is a rule-based engine that consumes external data, performs FX overlay calculations and raises alerts for required transactions through an internal exception dashboard. The ideal candidate brings strong expertise in Java/Spring and the ability to think independently and suggest improvements, acting as a proactive problem-solver rather than just a coder.

Please note that working from the office 3 days per week is required.

Responsibilities

• Implement business logic for the rule-based FX overlay engine
• Integrate the platform with external data sources and internal systems
• Ensure code quality through rigorous testing and code reviews
• Optimize performance and reliability of back-end services
• Collaborate with global teams and propose technical improvements
• Troubleshoot and resolve issues across the platform
• Contribute to architectural decisions and technical direction

Requirements

• 5+ years of professional experience in software development with a focus on Java back-end or full-stack development
• Bachelor's degree in Computer Science or related field (or equivalent practical experience)
• Proficiency in Java (8+), Spring Boot and microservices architectures
• Understanding of REST API design with experience building and consuming RESTful services
• Experience with relational databases such as PostgreSQL and MySQL, with exposure to NoSQL stores
• Familiarity with transactional systems and data consistency patterns in enterprise applications
• Knowledge of distributed systems, messaging frameworks such as Kafka and event-driven architecture
• Capability to work independently, grasp complex business logic and contribute proactively to technical solutions
• Skills in collaboration within cross-functional teams and experience working in an Agile/Scrum environment
• English proficiency at B2 level or higher

We offer

• We gather like-minded people:
  • Top tech minds driving innovation in AI, cloud and digital platform modernization
  • Supportive team and agile, startup-like culture
  • Hybrid by design mode and opportunity to work remotely within Poland
  • Chance to work abroad for up to 60 days annually
  • Business-driven relocation opportunities
• Thought leadership, mentoring, soft skills and well-being programs
• We cover it all:
  • Stable pay
  • Participation in the Employee Stock Purchase Plan with a 15% discount
  • Benefits package (health insurance, multisport, shopping vouchers)
  • Referral bonuses up to $2,000
  • Offices featuring entertainment and relaxation zones, table tennis and football, free snacks, coffee and more
  • Corporate, social and well-being events
• Please, note:
  • Benefits listed above are available to employees only
  • We are open for working with Contractors. Terms of B2B cooperation agreements are agreed individually
  • We will reach out to selected candidates exclusively