Senior Frontend Engineer - Reactjs

Senior Frontend Engineer (React): Building and optimizing robust, scalable features for a recruiting platform with an accent on frontend architecture, state management, and end-to-end feature ownership.Focus on driving technical quality, implementing complex React components, and ensuring high performance and accessibility in a mature engineering environment.Location: Must be based in or be able to relocate to Barcelona, Spain (Hybrid role).Salary: €67,000-€80,000 per year.Company JOIN is a recruiting software startup building intuitive and powerful tools to make the hiring process fast, easy, and fair for companies of all sizes.What you will do Own the delivery of high-impact frontend features end-to-end, from technical discovery and design to implementation and monitoring.Translate product requirements into scalable technical solutions, proactively managing UX trade-offs and performance implications.Develop complex, maintainable React components and application flows using TypeScript and modern architectural principles.Drive technical quality by implementing robust unit and end-to-end testing strategies.Collaborate with Product and Design teams to balance user experience, feasibility, and development speed.Mentor junior engineers through knowledge sharing and code collaboration.Requirements 4+ years of experience as a Frontend Engineer working with React.Strong proficiency in TypeScript, HTML5, and CSS3.Solid experience with state management libraries like Redux or Zustand.Practical knowledge of API integration patterns (REST/GraphQL) and CI/CD pipelines.Familiarity with testing frameworks such as Jest, React Testing Library, or Cypress.Must be based in Barcelona or willing to relocate to Spain.Nice to have Experience contributing to or maintaining a Design System.Familiarity with Figma and UI collaboration workflows.Exposure to backend concepts or full-stack environments.Experience with analytics or A/B experimentation tools.Culture & Benefits Competitive salary tailored to your experience.Provision of high-quality Apple hardware (MacBook).Hybrid work model with flexibility to work from home.Relocation support including assistance with paperwork and initial accommodation.Team events including brunches and quarterly gatherings.Growth-oriented startup environment emphasizing ownership and collaboration.Hiring process Introductory call and Hiring Manager interview.Technical evaluation and team fit discussion.Transparent process with timely feedback throughout.#J-*****-Ljbffr

Salary: €67,000-€80,000 per year.Company JOIN is a recruiting software startup building intuitive and powerful tools to make the hiring process fast, easy, and fair for companies of all sizes.What you will do Own the delivery of high-impact frontend features end-to-end, from technical discovery and design to implementation and monitoring.Translate product requirements into scalable technical solutions, proactively managing UX trade-offs and performance implications.Develop complex, maintainable React components and application flows using TypeScript and modern architectural principles.Drive technical quality by implementing robust unit and end-to-end testing strategies.Collaborate with Product and Design teams to balance user experience, feasibility, and development speed.Mentor junior engineers through knowledge sharing and code collaboration.Requirements 4+ years of experience as a Frontend Engineer working with React.Strong proficiency in TypeScript, HTML5, and CSS3.Solid experience with state management libraries like Redux or Zustand.Practical knowledge of API integration patterns (REST/GraphQL) and CI/CD pipelines.Familiarity with testing frameworks such as Jest, React Testing Library, or Cypress.Must be based in Barcelona or willing to relocate to Spain.Nice to have Experience contributing to or maintaining a Design System.Familiarity with Figma and UI collaboration workflows.Exposure to backend concepts or full-stack environments.Experience with analytics or A/B experimentation tools.Culture & Benefits Competitive salary tailored to your experience.Provision of high-quality Apple hardware (MacBook). Hybrid work model with flexibility to work from home.Relocation support including assistance with paperwork and initial accommodation.Team events including brunches and quarterly gatherings.Growth-oriented startup environment emphasizing ownership and collaboration.Hiring process Introductory call and Hiring Manager interview.Technical evaluation and team fit discussion.Transparent process with timely feedback throughout.