Senior React Engineer

• Level: Senior
• Type: B2B
• English Level: Upper-Intermediate
• Location: Poland, Romania, Portugal
• Skills: React TypeScript

Responsibilities

• You will extend outside of your direct organization and collaborate with peers across senior-level engineering teams.
• You will serve as a guide to others by sharing knowledge and helping other engineers in their duties.
• You will design and implement user interfaces using React and TypeScript that integrate seamlessly with backend services.
• You will research and recommend frameworks, libraries, and architectural/code design patterns for front-end development.
• You will take a whole-systems approach to analyze and implement holistic solutions that ensure effective communication between the UI and backend systems.
• You will review and debug frontend and backend interactions, including API contracts, data flows, and SQL queries.
• You will report on the status of complex or high-level projects to technical leadership via written or oral communication.
• You will ensure documentation for UI components, patterns, and technical integrations is complete and maintained.

Experience and qualifications:

• Bachelors degree or Masters in a related technical field (or equivalent related professional experience) and/or 5+ years of relevant experience.
• Experienced in building scalable and maintainable front-end systems using React and TypeScript.
• Strong understanding of modern front-end architecture, component-driven development, and state management frameworks (e.g., Redux, Recoil, or Context API).
• Experienced in debugging and integrating front-end applications with RESTful Java backend services.
• Comfortable navigating and understanding Java backend code and APIs to troubleshoot or enhance integrations.
• Proficient in relational databases and SQL, able to query and analyze data to support front-end features.
• Able to identify business problems at the project level and design solutions that are testable, observable, and maintainable.
• Strong understanding of how UI goals and performance optimizations fit broader business needs.
• Able to justify technology choices and design decisions to both technical and non-technical audiences.
• Able to advocate for project quality through testing, monitoring, and front-end performance metrics.