Senior Java Backend Engineer – Insurance

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

Benefits offered by this job

Private medical care with Allianz

Multisport cafeteria package

Individual training/conference budget

Job summary

TechTree is recruiting for a Mid/Senior Java Backend Engineer for Insurance, building scalable enterprise platforms with hybrid work in Poland (Kraków / Gdańsk / Łódź / Poznań). You will join an international team delivering mission-critical modules across financial settlement, accounting, and claims.

We seek a professional with 5+ years in Java/Spring Boot, strong REST API design skills, and openness to AI-assisted programming. English B2 and Polish A1/A2 are expected.

Qualifications

• 5+ years of commercial Java/Spring Boot experience.
• Experience designing REST APIs.

Responsibilities

• Design and develop Java backend services (Spring Boot) for settlement, accounting, investment fund, and claims 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 API design

English proficiency

Tools

Spring Boot

Job description

TechTree is recruiting for a Mid/Senior Java Backend Engineer for Insurance, building scalable enterprise platforms with hybrid work in Poland (Kraków / Gdańsk / Łódź / Poznań). You will join an international team delivering mission-critical modules across financial settlement, accounting, and claims.

We seek a professional with 5+ years in Java/Spring Boot, strong REST API design skills, and openness to AI-assisted programming. English B2 and Polish A1/A2 are expected.