Senior Software Engineer (React)
HybridKrakow, Łódź Voivodeship, Republic of Poland
Job Summary
Lead the design, implementation, and ongoing maintenance of advanced frontend solutions using TypeScript, React.js, and Remix to ensure scalability and efficiency. Collaborate with backend engineers, product partners, and designers to clarify requirements and deliver well-crafted features while supporting frontend architecture and adopting modern technologies. Promote high standards in code quality, testing with Playwright and Jest, and release practices to enable dependable delivery. Proactively improve development workflows, tooling, and overall product quality while sharing knowledge through mentoring and fostering a learning-focused team culture. Maintain clear communication with stakeholders on delivery progress, risks, and technical topics.
Required Qualifications
- Strong experience designing and building frontend applications using TypeScript, HTML, and CSS
- Proficiency with modern frameworks such as React.js and Remix, applied in modular and distributed frontend systems
- Good understanding of web architecture, including DNS, web servers, and support for microfrontend solutions
- Hands-on experience integrating RESTful APIs, JSON, and GraphQL within distributed architectures
- Solid knowledge of frontend testing tools such as Playwright and Jest, including testing independently deployed modules
- Experience with CI/CD pipelines and modern deployment practices, particularly in multi-application environments
- Familiarity with accessibility standards and user experience best practices across shared and standalone components
- Strong understanding of software and quality engineering principles, including performance, security, and scalability
- Excellent problem-solving abilities
- Clear communication skills for effective cross-team collaboration
- Excellent command of English (written and spoken)
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