Java Backend Engineer — Build Next-Gen Fintech (Hybrid)

ARQ; Kraków; Hybrid; PLN 180,000 - 270,000; Full time

Job summary

ARQ, Krakow-based fintech, is hiring a Backend Engineer to design, build, and scale secure backend systems. You will work on greenfield features and improve existing services, focusing on Java with a PostgreSQL backend and Spring Boot frameworks.

You will collaborate with a driven team, uphold high standards, and contribute to fast, reliable delivery in a hybrid setup. English communication is essential for global collaboration.

Qualifications

• Bachelor's degree in CS or related field.
• Proven experience in backend Java development.
• Fluent English communication.

Responsibilities

• Greenfield development and improvement of existing systems.
• Build REST APIs and engineering microservices; evolve critical systems.
• Java-based backend with PostgreSQL; use Spring Boot for delivery.
• Follow TDD, DDD and CI/CD practices to ensure maintainability and speed.

Skills

Java

Backend development

Spring Boot

REST APIs

Microservices

TDD

DDD

English

Education

Bachelor's degree in Computer Science or related field

Tools

PostgreSQL

Job description

ARQ, Krakow-based fintech, is hiring a Backend Engineer to design, build, and scale secure backend systems. You will work on greenfield features and improve existing services, focusing on Java with a PostgreSQL backend and Spring Boot frameworks.

You will collaborate with a driven team, uphold high standards, and contribute to fast, reliable delivery in a hybrid setup. English communication is essential for global collaboration.