Remote Java Backend Engineer for Scalable Microservices

Jit Team; Gdynia; On-site; PLN 110,700 - 184,500; Full time

Job summary

Jit Team is seeking a Java Developer in Poland to design, build and maintain core services for advertising campaign management. You will work on scalable backend systems, ensuring integration with multiple services and data stores.

You will collaborate with product owners, data teams, and frontend and billing domains in a distributed, cloud‑based environment. The role emphasizes high availability, event‑driven communication, and modern backend practices.

Qualifications

• Proven experience in Java and/or Kotlin development.
• Strong knowledge of backend development with Spring Boot.
• Understanding of OO programming and design patterns.
• Familiarity with microservices and distributed systems.

Responsibilities

• Design solutions with high availability and horizontal scalability.
• Collaborate within a mature, cross‑functional team.
• Communicate with Product Owners and non‑technical stakeholders.

Skills

Java/Kotlin development

Spring Boot

Object‑oriented design

Microservices

PostgreSQL

MongoDB

Asynchronous messaging

REST APIs

Cloud knowledge

Git

CI/CD pipelines

Kafka

Tools

Kafka

Git

CI/CD Pipelines

Google Cloud BigQuery

Job description

Jit Team is seeking a Java Developer in Poland to design, build and maintain core services for advertising campaign management. You will work on scalable backend systems, ensuring integration with multiple services and data stores.

You will collaborate with product owners, data teams, and frontend and billing domains in a distributed, cloud‑based environment. The role emphasizes high availability, event‑driven communication, and modern backend practices.