Senior Java Full-Stack Developer with React

EPAM·Poland·Удалённо, Офис·вчера

We are looking for a Senior Java Full-Stack Developer with strong React expertise to join our team.

In this role, you will lead the design and delivery of complex, highly scalable web applications across both front-end and back-end layers. You will drive technical decisions, mentor fellow engineers, and partner closely with cross-functional teams to shape high-quality solutions that address strategic business and user needs.

This role offers a hybrid model, with 3 days per week working from our office in Kraków.

Responsibilities

Architect, build, and maintain enterprise-grade web applications using React and Java
Design, develop, and evolve REST APIs, ensuring scalability, security, and maintainability
Define and optimize database solutions using PostgreSQL, including advanced query tuning and data modeling
Establish and promote best practices for writing clean, maintainable, and well-tested code
Lead code reviews, troubleshoot complex issues, and guide testing and debugging strategies
Collaborate with product, QA, and engineering teams to define technical direction and deliver impactful features
Mentor mid-level and junior developers, fostering technical growth within the team
Contribute to architectural discussions and influence long-term technology choices

Requirements

3+ years of experience in full-stack development
Strong proficiency in React and modern JavaScript/TypeScript, including state management and performance optimization
Solid background in Java backend development, with deep expertise in Spring and Spring Boot
Proven experience designing, building, and scaling RESTful APIs
Advanced knowledge of PostgreSQL, including schema design, complex queries, indexing, and performance tuning
Hands-on experience with Git, CI/CD pipelines, and agile methodologies
Demonstrated ability to lead technical initiatives and mentor other engineers
English proficiency at an Upper-Intermediate level (B2) or higher