Senior Java Backend Developer

Stellenbeschreibung:

EPAM is seeking a skilled Senior Java Backend Developer who is passionate about building scalable, high-performance backend services and enjoys working on products used daily by thousands of professionals. You will join a collaborative, agile team developing and enhancing a flagship mobile platform and supporting backend services for a leading global property data and analytics company operating in the real estate technology (PropTech) domain. The client delivers data-driven solutions that power the real estate industry across North America, providing critical tools and insights to agents, brokers, and MLS organisations.

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

Requirements

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 the North American-based team
English proficiency at B2 level or higher
Nice to have: Experience with cloud platforms (AWS or GCP)
Nice to have: Experience with Docker and Kubernetes
Nice to have: Knowledge of messaging technologies such as Kafka or RabbitMQ
Nice to have: Experience with OAuth2, SSO, JWT, or other authentication mechanisms
Nice to have: Familiarity with AI-assisted development tools such as GitHub Copilot or Gemini
Nice to have: Experience working with high-traffic, customer-facing SaaS or mobile backend platforms
Nice to have: Experience integrating with third-party APIs and enterprise systems
Nice to have: Background or interest in the real estate / PropTech domain