Senior Front-End Developer

Capitole; Tarragona; Presencial; EUR 50.000 - 70.000; Jornada completa

Descripción de la vacante

A technology company in Tarragona is seeking a Senior Front-End Engineer to lead architectural decisions and optimize performance for medium to large scale applications in React or Next.js. The ideal candidate must have deep knowledge in JavaScript and TypeScript, and experience with modern state management. The role requires on-site presence once every month and a half in Barcelona.

Formación

• 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.

Responsabilidades

• Design and architect scalable front-end solutions.
• Mentor junior developers and review code to maintain quality.
• Work with complex API integrations and state management tools.

Conocimientos

Architectural decision-making

React or Next.js

JavaScript

TypeScript

Performance optimization

API integrations

Mentoring

Herramientas

Zustand

Redux

TanStack

Descripción del empleo

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.

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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.