Senior Front-End Engineer In CAPITOLE we are looking to reinforce our team with Senior Front-End Engineer with solid experience in code architecture and algorithmics, capable of making complex technical decisions and structuring medium/large scale applications.
Location: On-site presence required 1 time every month and a half in Barcelona. Job Requirements Proven experience leading architectural decisions in complex React or Next.js projects. Deep expertise in JavaScript/TypeScript and advanced design patterns. Strong ability to optimize performance and manage rendering strategies (SSR, CSR, ISR). Solid grasp of data structures and algorithms, and how they impact front-end performance. Experience working with complex API integrations and modern state management (Zustand, Redux, TanStack, etc.). Capable of mentoring other developers and reviewing code with a focus on quality and scalability. Languages: English - C1 / Spanish -B2. Still don’t know us? Discover more: Or check what others are saying: Glassdoor We’re excited to meet you! The employee will adhere to information security policies: * Will have access to confidential information related to Capitole and the project they are working on. * Must comply with the security policies and internal policies of the company and the client. * Must sign an NDA.