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November 4, 2026
Senior Java Developer
Senior • On-site
21,000 - 25,200 PLN/yr
Warsaw, Poland
Quick Facts
- Role: Senior Java Developer (backend)
- Work model: Hybrid (3 days in the office)
- Domain: Corporate banking / large-scale loan calculation
Description
You will build secure, scalable, high-performance backend solutions for a mission-critical financial application. The work centers on microservices and modern Java features, delivering technical implementations for a system that calculates large-scale loans for corporate clients and public institutions. You will regularly deliver increments and support releases, including L1/L2/L3 production issue handling with technical fixes.
Responsibilities
- Develop code following Software Craftsmanship best practices and quality standards
- Understand business requirements and define technical solutions
- Deliver product increments regularly
- Collaborate closely with the Paris-based development team (remote)
- Execute release processes and provide L1/L2/L3 support for production issues, implementing fixes
- Identify and propose solutions to ensure security, scalability, and efficiency
- Analyze errors and support continuous improvement initiatives
Requirements
- 5+ years of Java backend development experience
- Experience with Spring and Spring Boot
- Practical knowledge of hexagonal architecture
- Familiarity with Jenkins and Maven
- Experience with relational databases and SQL
- Understanding of web services
- Knowledge of Agile and BDD practices
- Fluency in English
Benefits
- Hybrid work model: 3 days onsite
- International collaboration on a mission-critical financial platform
- Work on secure and high-performance enterprise backend systems
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