Senior Java Backend Engineer — Insurance (Hybrid Poland)

TechTree; Kraków; Hybrid; PLN 254,000 - 304,000; Full time

Benefits offered by this job

Private medical care (Allianz)

Multisport cafeteria package

Training / conference budget

Job summary

TechTree is recruiting for a Mid/Senior Java Backend Engineer on behalf of a client in the insurance sector. The role is based in Poland with hybrid work in Kraków, Gdańsk, Łódź, or Poznań.

You will work in an international team supporting scalable, enterprise-grade platforms that handle financial settlements, accounting, and claims modules. We seek a candidate with 5+ years Java/Spring Boot experience and strong REST API design skills.

Qualifications

• 5+ years of commercial Java/Spring Boot experience.
• Strong REST API design skills.
• English B2+ and Polish A1/A2.

Responsibilities

• Design and develop backend services in Java (Spring Boot) for financial settlement, accounting, investment fund, and claims-handling modules.
• Build and maintain high-performance REST APIs and integrations with external providers.
• Own architecture and code quality—Clean Code, design patterns, code review.

Skills

Java

Spring Boot

REST APIs

English (B2)

Job description

TechTree is recruiting for a Mid/Senior Java Backend Engineer on behalf of a client in the insurance sector. The role is based in Poland with hybrid work in Kraków, Gdańsk, Łódź, or Poznań.

You will work in an international team supporting scalable, enterprise-grade platforms that handle financial settlements, accounting, and claims modules. We seek a candidate with 5+ years Java/Spring Boot experience and strong REST API design skills.