Remote Java Backend Engineer – Scalable Services

Reelu; Warszawa; Hybrid; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Remote-first

Learning budget

Health benefits

Annual bonus

Career progression

Global team

Job summary

Reelu is recruiting a Java Services Engineer for Warsaw, with remote-friendly setup. You will design and optimize scalable backend game services, focusing on high performance, low latency, and reliable APIs while collaborating with international studios.

The role emphasizes building reusable components, writing tests, and contributing to a fast-moving gaming platform used by millions of players worldwide.

Qualifications

• 2+ years of professional software development experience.
• Experience designing, building, and optimizing scalable, high-throughput backend services.
• Strong analytical and problem-solving skills with exceptional attention to detail.
• Upper-Intermediate English or higher, with the ability to collaborate effectively in an international team.

Responsibilities

• Design, develop, and optimize scalable, high-performance backend game services using Modern Java (Java 17/21+).
• Build low-latency APIs and distributed services capable of handling high volumes of concurrent transactions.
• Collaborate with game designers, mathematicians, product teams, and client developers to transform game specifications into robust backend solutions.
• Standardize core business logic and calculation engines into reusable backend components.
• Write comprehensive unit tests and continuously optimize service performance, reliability, and scalability.
• Participate in code reviews, share engineering best practices, and contribute to a collaborative development culture.
• Work closely with engineering teams across multiple international studios to build next-generation gaming platforms.

Skills

Java backend

Distributed systems

High-performance backend

English communication

Tools

MySQL

NoSQL databases

Git

Job description

Reelu is recruiting a Java Services Engineer for Warsaw, with remote-friendly setup. You will design and optimize scalable backend game services, focusing on high performance, low latency, and reliable APIs while collaborating with international studios.

The role emphasizes building reusable components, writing tests, and contributing to a fast-moving gaming platform used by millions of players worldwide.