P bem Senior Front-End Engineer /em /b /p p In we are looking to reinforce our team with b Senior Front-End Engineer /b with solid experience in code architecture and algorithmics, capable of making complex technical decisions and structuring medium/large scale applications. /p p b Location /b : On-site presence required b1 time every month and a half /b in b Barcelona. /b /p pbem Job Requirements /em /b /p p Proven experience b leading architectural decisions /b in complex React or Next.js projects. /pp b Deep expertise /b in JavaScript/TypeScript and advanced design patterns. /pp Strong ability to b optimize performance /b and manage rendering strategies (SSR, CSR, ISR). /pp b Solid grasp of data structures and algorithms /b, and how they impact front-end performance. /pp Experience working with complex API integrations and modern state management (Zustand, Redux, TanStack, etc.). /pp Capable of mentoring other developers and reviewing code with a focus on quality and scalability. /pp Languages: b English - C1 / Spanish -B2. /b /p p Still don’t know us? Discover more: /p p Or check what others are saying: Glassdoor /p pb We’re excited to meet you! /b /p pem The employee will adhere to information security policies: /em /p ulliem Will have access to confidential information related to Capitole and the project they are working on. /em /liliem Must comply with the security policies and internal policies of the company and the client. /em /liliem Must sign an NDA. /em /li /ul