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Posted 5d ago

Lead Full-Stack Software Engineer (Java + ReactJS)

@ EPAM Systems
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Poland
HybridFull Time
Responsibilities:leading development, designing apis, building components
Requirements Summary:Bachelor's in CS/IS/Engineering,5+ years full-stack web experience,1+ year leadership; proficiency in Java,React,Spring Boot,TypeScript,Webpack,Redux,HTML5/CSS3/JavaScript,API design,auth,microservices and unit testing; English B2+.
Technical Tools Mentioned:Java, ReactJS, Spring Boot, Spring Data JPA, TypeScript, Webpack, Redux, HTML5, CSS3, JavaScript
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Job 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.