Senior Full Stack Developer

We are looking for a Senior Full Stack Developer to join our team at EPAM Systems in Poland.

This position offers a hybrid work model - combining remote work with 3 days per week from one of our EPAM offices located in Kraków, Wrocław, or Gdańsk . This setup allows you to enjoy flexibility while staying connected with your team and benefiting from in-person collaboration.

We value collaboration, continuous learning, and engineering excellence. Whether you're passionate about building robust backend systems, crafting seamless user interfaces, or bridging the gap between both - we'd love to hear from you. If you're an experienced developer looking for new challenges, diverse projects, and a supportive engineering culture, EPAM is the place to grow your career.

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 5 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

Nice to have

• Experience with Terraform for infrastructure as code and automated provisioning of cloud resources
• Familiarity with Microsoft Azure cloud platform and its core services
• Working knowledge of Python for scripting, automation, or secondary application development
• Experience with Hibernate ORM for object-relational mapping and database interaction in Java applications
• Experience with AWS cloud services, particularly Lambda, ECS, and DynamoDB, for building and deploying cloud-native applications