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July 20, 2026
Full Stack Engineer (Java, React)
Mid • Remote
17,000 - 18,500 PLN
Krakow, Poland
We are searching for a Full Stack Engineer (React, Java) for a 16-month project.
As part of our platform, we are developing a rewards system that encourages local shopping. Users will be able to collect points when visiting selected partner businesses and redeem them for discounts or benefits. This solution helps build lasting relationships between customers and local companies while also supporting the growth of the regional economy. If modern technologies unleash your creativity and you thrive in an environment of learning and collaboration, this is the project for you.
Responsibilities
- Develop, maintain, and evolve the platform across all layers: mobile apps (React Native/Expo), web frontend (TypeScript), backend services (Java/Spring Boot), and partner portals (CMS)
- Design, implement, and test new features end to end
- Ensure performance, scalability, and security of backend systems and database queries
- Extend and improve automated test processes
- Continuously optimize code quality, development processes, and system performance
- Maintain and extend technical documentation
- Collaborate closely with teammates and contribute to shared technical knowledge
Qualifications
- Degree or comparable qualification in Computer Science, Software Engineering, or related field
- 3+ years of professional full stack development experience (Front-End emphasis)
- Strong skills in JavaScript/TypeScript
- Experience with React Native and Expo
- Knowledge of Java, Spring Boot, Hibernate, and JPA
- Knowledge of PostgreSQL and SQL
- Experience with REST APIs and microservice architectures
- Familiarity with RabbitMQ integrated with backend systems
- Familiarity with Docker, Kubernetes, and GitLab CI/CD
- Understanding of basic DevOps principles
- Commitment to clean, secure, and maintainable code practices
- Excellent English communication skills
- Team player with analytical thinking and proactive mindset
Nice to Have
- Experience with Elasticsearch, especially data aggregation
- Understanding of security principles for Docker and Kubernetes
Benefits
- Benefit Café with categories such as sports, leisure, books, etc.
- Supportive and inclusive work environment with personalized attention to each team member
- Engaging projects featuring innovative and cutting-edge products
- Competitive salary with periodic reviews
- Flexible working hours ensuring healthy work-life balance
- Educational support, including funded language classes
- Luxmed private healthcare packages
- Comfortable workspace, fresh fruit Mondays, and remote work opportunities
- Exciting team events and networking opportunities
Following applicable legal regulations regarding whistleblower protection, the company has implemented a Whistleblower Support Policy ensuring anonymity, protection, and support for individuals reporting irregularities.
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Hybrid
Wroclaw, Poland
🏢 Summary: Lead Full-Stack Software Engineer role focused on building modern web applications using ReactJS and Java/Spring Boot. The position involves leading end-to-end development, designing scalable APIs, building reusable UI components, and ensuring quality across frontend and backend systems. Candidates should have strong full-stack expertise, leadership experience, and knowledge of modern web architecture and testing practices. 🗂️ Requirements: Bachelor's degree in Computer Science, Information Systems, or Engineering, 5+ years of full-stack development experience, 1+ year of leadership experience, Proficiency in HTML5, Proficiency in CSS3, Proficiency in JavaScript, Expertise in React, Expertise in Redux, Expertise in Webpack, Skills in TypeScript, Experience with Micro-Frontend architecture, Background in Java, Experience with Spring Boot, Knowledge of JPA, Understanding of API design, Understanding of authentication, Knowledge of microservices, Knowledge of responsive design, Knowledge of mobile-first development, Familiarity with browser testing and debugging tools, Ability to write reusable components, Ability to write unit tests, Strong debugging and problem-solving skills, English proficiency at B2+ level 📃 Skills: Java, ReactJS, SpringBoot, Redux, Webpack, TypeScript, JavaScript, HTML5, CSS3, JPA, Microservices, API, Authentication, MicroFrontend, JUnit 🏢 Description: We are looking for a Lead Full-Stack Software Engineer with expertise in Java and ReactJS to help design and deliver modern web applications across a React frontend and Spring Boot backend. You will guide technical execution, build reusable components and APIs, and ensure quality from development through deployment. Responsibilities Lead end-to-end development across ReactJS frontend and Java/Spring Boot backend Design and implement scalable APIs, including authentication and database connectivity Build reusable UI components and shared frontend patterns Architect responsive, mobile-first user experiences using modern web standards Implement backend persistence and business logic using Spring Data JPA Write unit tests using an appropriate unit test framework and ensure code quality Debug and troubleshoot issues across browsers, frontend, and backend Collaborate with the team to deliver features through design, development, and deployment Evaluate and adopt new technologies when needed to meet project goals Requirements Bachelor's degree in Computer Science, Information Systems, or Engineering 5+ years of full-stack development experience in modern web technologies At least 1 year of relevant leadership experience Proficiency in HTML5, CSS3, and JavaScript Expertise in React, Redux, and Webpack Skills in TypeScript and Micro-Frontend architecture Background in Java, Spring Boot, and JPA Understanding of API design, authentication, and microservices Knowledge of responsive design and mobile-first development principles Familiarity with browser testing and debugging tools Capability to write reusable components and unit test cases Strong debugging and problem-solving skills, with the ability to work both independently and collaboratively Good work ethic, self-starter mindset, and results-oriented approach Excellent command of written and spoken English (B2+ level) Nice to have Knowledge of software development lifecycle (SDLC) methodologies such as Agile and Waterfall EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.
Technology
EPAM Systems
Lead Full-Stack Software Engineer (Java + ReactJS)
Senior
Hybrid
Poznan, Poland
🏢 Summary: Lead Full-Stack Software Engineer role focused on building and delivering modern web applications using ReactJS and Java/Spring Boot. The position involves leading end-to-end development, designing scalable APIs, creating reusable UI components, and ensuring quality across frontend and backend systems. Candidates should have strong full-stack expertise, leadership experience, and knowledge of modern web architectures and testing practices. 🗂️ Requirements: Bachelor's degree in Computer Science, Information Systems, or Engineering, 5+ years of full-stack development experience, 1+ year of leadership experience, Proficiency in HTML5, Proficiency in CSS3, Proficiency in JavaScript, Expertise in React, Expertise in Redux, Expertise in Webpack, Skills in TypeScript, Experience with Micro-Frontend architecture, Background in Java, Experience with Spring Boot, Knowledge of JPA, Understanding of API design, Knowledge of authentication mechanisms, Understanding of microservices, Knowledge of responsive design, Knowledge of mobile-first development, Familiarity with browser testing and debugging tools, Ability to write reusable components, Ability to write unit tests, Strong debugging and problem-solving skills, English proficiency at B2+ level 📃 Skills: Java, React, ReactJS, Spring, SpringBoot, JPA, Redux, Webpack, TypeScript, JavaScript, HTML5, CSS3, Microservices, MicroFrontend, API, Authentication 🏢 Description: We are looking for a Lead Full-Stack Software Engineer with expertise in Java and ReactJS to help design and deliver modern web applications across a React frontend and Spring Boot backend. You will guide technical execution, build reusable components and APIs, and ensure quality from development through deployment. Responsibilities Lead end-to-end development across ReactJS frontend and Java/Spring Boot backend Design and implement scalable APIs, including authentication and database connectivity Build reusable UI components and shared frontend patterns Architect responsive, mobile-first user experiences using modern web standards Implement backend persistence and business logic using Spring Data JPA Write unit tests using an appropriate unit test framework and ensure code quality Debug and troubleshoot issues across browsers, frontend, and backend Collaborate with the team to deliver features through design, development, and deployment Evaluate and adopt new technologies when needed to meet project goals Requirements Bachelor's degree in Computer Science, Information Systems, or Engineering 5+ years of full-stack development experience in modern web technologies At least 1 year of relevant leadership experience Proficiency in HTML5, CSS3, and JavaScript Expertise in React, Redux, and Webpack Skills in TypeScript and Micro-Frontend architecture Background in Java, Spring Boot, and JPA Understanding of API design, authentication, and microservices Knowledge of responsive design and mobile-first development principles Familiarity with browser testing and debugging tools Capability to write reusable components and unit test cases Strong debugging and problem-solving skills, with the ability to work both independently and collaboratively Good work ethic, self-starter mindset, and results-oriented approach Excellent command of written and spoken English (B2+ level) Nice to have Knowledge of software development lifecycle (SDLC) methodologies such as Agile and Waterfall EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.