> Markdown version of [/jobs/ext/1596566-senior-frontend-developer](https://www.wearedevelopers.com/jobs/ext/1596566-senior-frontend-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Frontend Developer - **Company:** Impress - **Location:** Barcelona, Spain - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Databases, Continuous Integration, Payment Systems, PostgreSQL, Performance Tuning, Cloud Services, Next.js, TypeScript, ReactJS, Backend, Containerization, Material UI, Front End Software Development, NestJS, Restful APIs, Crud, Microservices - **Published:** July 11, 2026 - **Apply:** https://www.buscojobs.com.es/senior-frontend-developer-en-barcelona-ID-363450947 ## About the Role 5+ years of frontend development experience. Expert-level React - you know the internals, not just the API. Expert-level TypeScript - you write it without thinking twice. Experience with Next.js is highly desirable. Hands-on NestJS experience is a strong plus - being able to scaffold a CRUD API or a BFF layer independently will make you highly effective here. Solid understanding of modern frontend tooling, state management patterns, and performance optimization. Experience working in a product team alongside designers and backend engineers. E-commerce experience - checkouts, payment flows, order management. Basic backend knowledge (REST APIs, databases). Familiarity with infrastructure concepts (CI/CD, containerization, cloud services). Frontend: React, TypeScript, Next.js, Material UI, Chakra UI + Panda, TanStack. Backend (for context): NestJS, MedusaJS (self-hosted). Infrastructure: PostgreSQL, microservices. At Impress we cultivate a culture of inclusion and diversity. ## Description Join Impress - Europe's Leading Health-Tech Innovator!We believe everyone deserves a smile they'll love.With 150+ clinics across 10 countries and rapid growth, we're improving lives worldwide.We are looking for aSenior Frontend Developerto join our Onsite Team in Barcelona.BenefitsWork with an international and multicultural teamTeeth aligner and whitening benefitsCollaborative work environment and positive cultureOpportunities to grow within a fast-paced, innovative company and real start-up experience with big challengesFresh fruits and healthy snacks at the officeResponsibilitiesOwn the Storefront:Build and maintain multiple React-based frontends covering treatment sales, custom checkout flows, and post-treatment offers.Shape Internal Tools:Develop CRM and management tools using React, Material UI, and TanStack Query that power day-to-day operations.Bridge Frontend & Backend:Collaborate closely with backend engineers to integrate payment providers and ensure seamless end-to-end flows.Raise the Bar on Design:Contribute to design system consistency and quality across all products.Qualifications5+ years of frontend development experience.Expert-level React - you know the internals, not just the API.Expert-level TypeScript - you write it without thinking twice.Experience with Next.js is highly desirable.Hands-on NestJS experience is a strong plus - being able to scaffold a CRUD API or a BFF layer independently will make you highly effective here.Solid understanding of modern frontend tooling, state management patterns, and performance optimization.Experience working in a product team alongside designers and backend engineers.E-commerce experience - checkouts, payment flows, order management.Basic backend knowledge (REST APIs, databases).Familiarity with infrastructure concepts (CI/CD, containerization, cloud services).Frontend: React, TypeScript, Next.js, Material UI, Chakra UI + Panda, TanStack.Backend (for context): NestJS, MedusaJS (self-hosted).Infrastructure: PostgreSQL, microservices.At Impress we cultivate a culture of inclusion and diversity.We celebrate our employees' individual strengths, views, and experiences and we encourage all candidates to apply, without regard to race, color, religion, gender identity, sexual orientation, age, national origin, disability, or any other factor.#J-*****-Ljbffr ## Related Videos - [Nest.js - TypeScript in the backend can also be clean](https://www.wearedevelopers.com/videos/1033-nest-js-typescript-in-the-backend-can-also-be-clean) - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) - [GraphQL + Apollo + Next.js: A Lovely Trio](https://www.wearedevelopers.com/videos/311-graphql-apollo-next-js-a-lovely-trio) - [Next, Nest, Nuxt… Nust?](https://www.wearedevelopers.com/videos/421-next-nest-nuxt-nust) - [Rest API Antipatterns](https://www.wearedevelopers.com/videos/100208-rest-api-antipatterns) - [Streaming AI Responses in Real-Time with SSE in Next.js & NestJS](https://www.wearedevelopers.com/videos/1630-streaming-ai-responses-in-real-time-with-sse-in-next-js-nestjs) ## Related Articles - [16 Best Free React UI Libraries in 2025](https://www.wearedevelopers.com/magazine/148-16-best-free-react-ui-libraries-in-2025) - [The Best 7 Frontend Frameworks for Developers in 2025](https://www.wearedevelopers.com/magazine/400-the-best-7-frontend-frameworks-for-developers-in-2025) - [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development) - [React Developer Salary [2023]](https://www.wearedevelopers.com/magazine/198-react-developer-salary-2023) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Dev Digest 133 - Back to Front](https://www.wearedevelopers.com/magazine/474-dev-digest-133-back-to-front)