Lead Full Stack Developer - Java + React/Angular (k/m)

Hybrid work model — combining remote work with 3 days per week from one of our EPAM offices located in Kraków or Wrocław.

 

Responsibilities
  • Design, develop, and maintain scalable fullstack applications using Java-based backend technologies and modern frontend frameworks
  • Build and integrate RESTful APIs and event-driven services to support complex business requirements
  • Participate in the full software development lifecycle — from requirements analysis and technical design through implementation, testing, and deployment
  • Collaborate with cross-functional teams including product owners, business analysts, UX designers, and QA engineers to deliver high-quality solutions
  • Contribute to architectural decisions and advocate for best practices in code quality, security, and performance
  • Participate in code reviews, providing constructive feedback to ensure maintainability and adherence to coding standards
  • Develop and maintain unit and integration tests to ensure reliability and stability of delivered features
  • Work with messaging systems and asynchronous communication patterns to support distributed architectures
  • Continuously identify opportunities for technical improvement and contribute to the evolution of the technology stack
Requirements
  • Minimum of 8 years of professional experience in Full Stack software development
  • Strong hands-on experience with Spring Boot for building enterprise-grade backend applications
  • Solid knowledge of Spring Security for implementing authentication, authorization, and secure application design
  • Proven experience in designing and developing REST APIs following industry best practices
  • Proficiency in working with SQL databases, including writing complex queries, performance tuning, and data modeling
  • Experience writing reliable and maintainable tests using JUnit or similar testing frameworks
  • Hands-on experience with Apache Kafka for event streaming, asynchronous messaging, and building event-driven architectures
  • Strong proficiency in at least one modern frontend framework — Angular or React — including component-based architecture and state management
  • Strong communication skills and the ability to work effectively in an international, Agile team environment
  • Proficiency in English (B2+), both written and spoken
ID: 589 job_post.published_on: 29/09/2026
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