Senior Java Backend Engineer — Scalable Microservices & APIs

EPAM Systems; Poland; Hybrid; PLN 180,000 - 260,000; Full time

Benefits offered by this job

Hybrid work within Poland

Work abroad up to 60 days annually

Relocation opportunities

Growth programs & certifications

Health insurance & multisport benefits

Referral bonuses

Job summary

EPAM Systems is seeking a Senior Java Backend Developer to build scalable, high-performance backend services for a PropTech platform used by thousands of professionals. You will join an agile team, design APIs, implement microservices, and collaborate across product, QA, and architects to deliver reliable software.

The role emphasizes secure, scalable backend architecture, CI/CD, and ongoing improvement, with a shift window to align with North American teams.

Qualifications

• 5+ years of professional software development experience.
• Strong experience with Java and Spring Boot.
• Solid understanding of REST API design and microservices architecture.
• Experience with relational databases such as PostgreSQL, MySQL, or SQL Server.
• Experience with JPA/Hibernate or similar persistence frameworks.
• Knowledge of modern software engineering principles, design patterns, and clean code practices.
• Experience with Git and collaborative development workflows.
• Familiarity with unit and integration testing frameworks.
• Strong analytical, problem-solving, and communication skills.
• Ability to work effectively in an Agile/Scrum environment.
• Availability to work shifted hours (3:00 PM - 11:00 PM Polish time) to align with North American-based team.
• English proficiency at B2 level or higher.

Responsibilities

• Design, develop, and maintain scalable backend services using Java and Spring Boot
• Build and enhance RESTful APIs supporting mobile and web applications
• Develop secure, reliable, and high-performance microservices
• Design and optimize database models and data access layers
• Integrate with third-party platforms and external APIs
• Collaborate with mobile developers, frontend engineers, product managers, QA engineers, and architects to deliver high-quality solutions
• Participate in system design, code reviews, technical discussions, and architectural decisions
• Troubleshoot production issues and improve application performance, scalability, and reliability
• Write clean, maintainable, and well-tested code following engineering best practices
• Contribute to continuous improvement initiatives, including CI/CD, automation, and AI-assisted software development practices

Skills

Java

Spring Boot

REST API

Microservices

PostgreSQL/MySQL/SQL Server

JPA/Hibernate

Git

Unit/Integration Testing

Agile/Scrum

English (B2+)

Shift hours (EU/NA overlap)

Tools

Docker

Kubernetes

Kafka

RabbitMQ

OAuth2/SSO/JWT

Job description

EPAM Systems is seeking a Senior Java Backend Developer to build scalable, high-performance backend services for a PropTech platform used by thousands of professionals. You will join an agile team, design APIs, implement microservices, and collaborate across product, QA, and architects to deliver reliable software.

The role emphasizes secure, scalable backend architecture, CI/CD, and ongoing improvement, with a shift window to align with North American teams.