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# Senior Front End Developer - Permanent Position - Spain Or Portugal

- **Company:** N.A.S.H
- **Location:** Madrid, Spain (Remote available)
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, .NET Framework, Microsoft Azure, Cascading Style Sheets (CSS), Web Development, Design of User Interfaces, Next.js, TypeScript, Web Applications, ReactJS, Material UI, Front End Software Development
- **Published:** August 6, 2026
- **Apply:** https://www.buscojobs.com.es/senior-front-end-developer-permanent-position-spain-or-portugal-en-madrid-ID-365671917

## About the Role

Requirements: Proven experience as a Frontend Developer with a focus on React and Next.Js.
Strong proficiency in TypeScript.
Experience with React Query for data fetching and state management.
Proficient in Material UI and modern CSS.
Solid understanding of web development principles and best practices.
Familiarity with CI/CD pipelines and modern development workflows.
Good communication skills in English.
Experience with dotnet would be preferable

## Description

Our client is a software editor specialised in Data We are looking for an experienced Senior Frontend Developer to join their dynamic team.The position is full remote, but the candidate need to be based in Spain or Portugal.The ideal candidate will have a strong background in modern frontend development practices and extensive experience with React and Next.Js.We are currently using React + Next.Js, MUI, ReactQuery, Typescript, backends are in .Net 8, all hosted in Azure.Key Responsibilities: Develop and maintain high-quality web applications using React and Next.Js.Write clean, maintainable, and efficient code in TypeScript.Implement and style user interfaces using Material UI.Ensure the technical feasibility of UI/UX designs and implement them.Mentor developers.Requirements: Proven experience as a Frontend Developer with a focus on React and Next.Js.Strong proficiency in TypeScript.Experience with React Query for data fetching and state management.Proficient in Material UI and modern CSS.Solid understanding of web development principles and best practices.Familiarity with CI/CD pipelines and modern development workflows.Good communication skills in English.Experience with dotnet would be preferable


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