Empleos de developer frontend react en Madrid

Sopra Steria Group busca un/a Senior FullStack Developer con experiencia en Python y React para trabajar en la pila completa, desde interfaces React/TypeScript hasta motores en FastAPI/Python y consultas en BigQuery. Se valorará dominio de SQLAlchemy, BigQuery, AlloyDB/PostgreSQL y Pub/Sub, así como testing con pytest, Vitest/Jest y Playwright; experiencia...

Take your career to the next level with Amaris Consulting as a Senior Full Stack Developer . Be part of an international team, thrive in a global group with a €800M turnover and over 1,000 clients worldwide, and work in an agile environment. The ideal candidate will have a proven track record in building scalable, high-quality applications and is...

¡Únete al Grupo Líder en Cuidado Animal! Grupo IskayPet es el líder en Iberia en el cuidado de los animales de compañía. Iskay, cuyo significado en quechua es “la unión de dos”, surgió en 2020 con la fusión de Tiendanimal y Kiwoko. Con nuestras tiendas físicas, clínicas veterinarias, hospital veterinario y plataforma online, nos consolidamos...

A leading technology company in Spain is seeking a Frontend & Backend Developer Engineer for IoT Digital Platforms. You will develop innovative digital solutions for IoT devices and manage cloud services, requiring expertise in both relational and non-relational databases. The ideal candidate will have strong programming skills, hands-on experience with...

GFT es una compañía pionera en transformación digital que desarrolla soluciones sostenibles basadas en nuevas tecnologías, como la inteligencia artificial y blockchain/DLT. Los expertos de GFT crean e implementan aplicaciones de software escalables que hacen que el acceso a modelos de negocio innovadores sea seguro y sencillo. Qué estamos...

UST is a multinational technology company seeking a Senior Full Stack Developer with deep expertise in .NET, React, Azure Cloud, and AI to join our remote Spain team. You will design, develop, and deliver cloud-native applications and collaborate with data scientists to drive AI-powered solutions across the lifecycle.The role is 100% remote (Spain) with...

Hola Consultores SL is seeking a Senior Full Stack Developer to evolve a corporate intranet platform used across an international hospitality group.You will collaborate with Product Owner, UX/UI designers, and QA to build scalable architectures, develop RESTful APIs, and integrate with Microsoft 365, SharePoint, and Azure. The role emphasizes .NET, ASP.NET...

First Line Software is rebuilding a guest-facing digital estate using a microservices architecture. You will develop on a React/Next.js frontend and a .NET 8 / ASP.NET Core backend, hosted on AWS. You’ll contribute across discovery, booking, pre-stay, and in-stay touchpoints, delivering key guest experiences and loyalty features. Ideal candidates have 2+...

Octopus Energy is seeking a Senior Frontend Engineer to help build and scale octopusenergy.es, focusing on customer onboarding flows and the private area. You will drive frontend architecture end-to-end and collaborate with marketing and international engineering teams across Europe. Strong TypeScript/React expertise, Next.js experience, and a passion for...

Realnaut busca un/a UI Developer con experiencia para convertir diseños en interfaces digitales de alta calidad, accesibles y mantenibles. Trabajarás junto a Diseño, Producto y Tecnología para evolucionar componentes y sistemas de diseño.El perfil ideal maneja HTML/CSS avanzado, crea componentes reutilizables y tiene experiencia en frameworks frontend...

Embat is a fast-growing fintech startup based in Madrid, building a cloud-native SaaS platform to help mid-size and large enterprises manage finances and cash flow in real time. We seek a Frontend Engineer to join a React-based frontend, collaborating with product managers and designers in a fast-paced, agile environment.You will design and develop robust...

bunch is building the backbone of private markets. We are enabling next-gen fund operations with one integrated system that combines secure data infrastructure, AI-powered workflows and expert fund services. If you value ownership, growth through real responsibility, and working with a thoughtful, ambitious team, this role might be for you.La descripción...

At adidas, every day is a chance to flip the script. An invitation to take everything we know and re-invent it. Do it better. Never settling for good enough.Every day we get up, invent, adapt, improvise, find new ways to collaborate, and do the unexpected. We're creators, makers and doers. Helping athletes make a difference, not just in their games, but in...

Senior Backend Developer (Ruby on Rails) Madrid, A Coruña, Salamanca, Barcelona, Ciudad Real | Hybrid Model | Full-time | Permanent Contract At TeamSystem | Quipu, we help thousands of freelancers, SMEs, and accounting firms across Spain manage their businesses simply and efficiently through an intuitive and reliable SaaS platform. Since October 2025, Quipu...

Buscamos un/aSenior Frontend Developerpara unirse al equipo de uno de nuestros clientes, un equipo enfocado en Cloud y tecnología avanzada.Diseñar la arquitectura y desarrollar nuevas funcionalidades de la plataforma.Mejorar y mantener las funcionalidades existentes.Impulsar la innovación tecnológica para lograr los objetivos del producto.Garantizar la...

Octopus Energy is expanding its frontend team in Spain, building and scaling our es.es customer onboarding and private area. You’ll drive frontend architecture end-to-end, collaborating with Marketing and international engineering teams across Europe. The role emphasizes TypeScript/React expertise, Next.js, GraphQL, and CSS-in-JS within a dynamic,...

Talan Spain is seeking a Fullstack Developer to join a 4-month contract for a React-based mobile project. You will build a mobile-first PWA with TypeScript, connect to PostgreSQL, and ensure offline functionality. You’ll work autonomously, contribute to architecture decisions, and implement OAuth 2.0 authentication with Microsoft. Remote position in the...

Avenue Code in Spain is seeking senior professionals with a generalist profile, strong backend with Node.js, and solid React frontend experience to own product initiatives end-to-end. You will develop features independently, contribute to architecture, and collaborate in a small, autonomous squad within a SaaS context, balancing speed, quality and...

PARKLU by Launchmetrics is seeking a Software Development Engineer to shape Discover, part of our software suite for brand monitoring and benchmarking. You’ll work on AI‑led analytics, secure scalable data pipelines, and collaborate across product, design, and QA to deliver reliable frontend and backend features.You will guide frontend decisions with...

TransPerfect is hiring a Frontend Engineer to join our TechOps team in a hybrid work arrangement in Madrid. You will be responsible for implementing features, developing modular UI components, and ensuring high performance.Ideal candidates will have 2–4 years of software development experience, strong JavaScript skills, and hands-on work with Vue.js,...