Senior Java Backend Engineer — Hybrid (Warsaw)

Transition Technologies PSC; Polska; Hybrid; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Hybrid work model

Office in Warsaw (1 day/week)

Job summary

Transition Technologies PSC is seeking an experienced Senior Java Developer to join a large-scale transformation for an insurance client. You will build backend services in Java, craft REST APIs, and contribute to microservices and event-driven architectures in a Scrum environment.

The role emphasizes Domain-Driven Design, API design, and collaboration with security engineers. A hybrid schedule requires 1 day per week in the Warsaw office, with strong cross-team coordination across international

Qualifications

• At least 7 years of commercial Java experience.
• Strong knowledge of Spring Boot, Spring Framework, and Hibernate/JPA.
• Proficient with Apache Kafka and SQL.
• Experience with Domain-Driven Design (DDD) and microservices.

Responsibilities

• Develop backend applications and services in Java.
• Design and implement REST APIs and integrations.
• Work with microservice architecture and event-driven systems.
• Contribute to solution architecture and code quality.
• Collaborate in an international Scrum team.

Skills

Java

DDD

Microservices

REST APIs

Angular

AI tools

Git / CI/CD

Cloud (Azure/AWS/GCP)

Security awareness

Tools

Spring Boot

Spring Framework

Hibernate/JPA

Apache Kafka

SQL

Docker

Kubernetes

RabbitMQ

Elasticsearch

Playwright

CI/CD

Azure

AWS

GCP

Job description

Transition Technologies PSC is seeking an experienced Senior Java Developer to join a large-scale transformation for an insurance client. You will build backend services in Java, craft REST APIs, and contribute to microservices and event-driven architectures in a Scrum environment.

The role emphasizes Domain-Driven Design, API design, and collaboration with security engineers. A hybrid schedule requires 1 day per week in the Warsaw office, with strong cross-team coordination across international