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
Nice to have
- Solid experience with Docker and CI/CD automation
- Hands-on experience with cloud platforms (Azure preferred)
- Exposure to microservices architecture and distributed systems
- Experience with system design and architectural decision-making at scale
Benefits
We gather like-minded people:
- Top tech minds driving innovation in AI, cloud and digital platform modernization
- Supportive team and agile, startup-like culture
- Hybrid by design mode and opportunity to work remotely within Poland
- Chance to work abroad for up to 60 days annually
- Business-driven relocation opportunities
We provide growth opportunities:
- Career development programs
- Thought leadership, mentoring, soft skills and well-being programs
- Certification (Anthropic, Gemini, GCP, Azure, AWS)
- English classes
We cover it all:
- Stable pay
- Participation in the Employee Stock Purchase Plan with a 15% discount
- Benefits package (health insurance, multisport, shopping vouchers)
- Referral bonuses up to $2,000
- Offices featuring entertainment and relaxation zones, table tennis and football, free snacks, coffee and more
- Corporate, social and well-being events
Please, note:
- Benefits listed above are available to employees only
- We are open for working with Contractors. Terms of B2B cooperation agreements are agreed individually
- We will reach out to selected candidates exclusively