Junior Backend Java Developer

Are you a passionate Junior Backend Java Developer eager to make an impact? Join EPAM’s dynamic engineering team, where you’ll help create, maintain, and enhance the backend of a large-scale application for a global client in a fast-paced, collaborative environment. You’ll work with modern technologies and contribute to innovative solutions that drive business value for our client’s digital ecosystem. This role offers a hybrid model, with 3 days per week working from the client's office in Kraków, Poland.

• Develop and maintain backend features for a customer-facing application, ensuring seamless integration with multiple service providers
• Design, implement, and support software patches and new features
• Write, review, and maintain technical documentation, including design and development artifacts
• Create applications using standard and cloud-based development tools
• Test, debug, and update programs to ensure high quality and performance
• Analyze, review, and modify code to improve efficiency and meet evolving requirements
• Investigate, document, and resolve technical issues
• Collaborate with internal teams to define and implement solutions that enhance the provider and customer experience
• Participate in code refactoring, technical debt reduction, and recommend improvements with a product mindset
• Maintain the highest standards of development practices, including technical design, solution development, system configuration, test documentation, and clean, modular code

• Hands‑on experience with Java 8, Java 11, or Kotlin
• Working knowledge of SQL databases
• Basic understanding of HTML and CSS
• Familiarity with JavaScript, especially for debugging client-side request-response flows
• Experience with client-server architecture, HTTP, and RESTful APIs
• Knowledge of dependency injection, services, and API integration
• Strong technical problem‑solving skills
• Solid foundation in object-oriented programming
• Experience developing business applications, including data storage and application integration
• Experience implementing, configuring, and integrating third‑party software solutions
• Understanding of information management, data modeling, system integration, and development methodologies (including unit testing)
• Advanced written and verbal communication skills in English
• Quick learner with a proactive attitude

• Experience with protocol buffers and gRPC
• Familiarity with all phases of the Software Development Life Cycle (analyze, design, build, test, implement, support)
• Experience working on Linux environments