Empleos de backend full stack engineer en Barcelona

This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for a Full-Stack Engineer (Backend Leaning) – Payments Engineering based in Spain. As a Full-Stack Engineer specializing in backend development, you will help build and evolve the payment infrastructure that powers a rapidly growing...

¿Eres ingeniero informático y te apasiona la programación? 💻 ¿Te motiva trabajar con tecnología de verdad y crear soluciones que tienen impacto real en el sector energético? ⚡️ Si la respuesta es sí, en Qwi te estamos buscando. Lo que harás Formarás parte de un equipo de ingenieros eléctricos e informáticos que desarrollan soluciones...

Today, we are 80+ people, serve 900+ customers, raised €12 million in 2026, and are expanding internationally. We are building the financial operating system for construction: bringing AI, automation, and modern software to an enormous industry still full of slow, fragmented processes. We are looking for a product-minded Full Stack Engineer who leans...

Pillar is hiring a Full Stack Engineer to join a fast-growing startup building AI-powered tools for Italian SMEs. You will own meaningful product features from idea to production, collaborating with a compact, high-energy team in a fast-paced environment.You should bring hands-on experience with React, Next.js, Supabase and TypeScript, plus a proven ability...

Descripción del puesto / FuncionesEstamos buscando un/a Full Stack Web Developer con fuerte orientación backend para unirse al equipo de productos de IA que desarrolla una plataforma Multi-cloud de GenAI (Azure, AWS, Google Cloud), con foco principal en el servicio Secure GPT.Se trata de un rol técnico clave en un entorno internacional, donde...

Please submit your CV in English and indicate your level of English proficiency.Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is project-based, not permanent employment.What This Opportunity InvolvesYou'll create challenging coding test...

We're looking for a proactive and driven Product Engineer for one of our clients to build and deliver impactful features that make a real difference for restaurant operations. Design, build, and maintain a full-stack platform and AI Agents Focus on delivering outcomes and overcome challenges Architect scalable solutions to support rapid growth Contribute to...

Una empresa internacional de consultoría está buscando un Software Engineer (Full Stack) en Barcelona para proyectos de logística y automatización. Se requiere experiencia de 2-3 años en Java, JPA, Hibernate y SQL. Además, el candidato debe manejar Git, Jenkins, y tener conocimientos en Docker y Kubernetes. La posición es híbrida, ofreciendo...

Overview In this role you will strengthen Preply’s CRM platform, delivering timely and relevant communications to millions of users. You’ll work in a cross-functional team to design scalable backend services and maintain React-based frontend surfaces, driving impact through experiments and reliable delivery. This position blends backend focus with...

Overview In this role you will strengthen Preply’s CRM platform, delivering timely and relevant communications to millions of users. You’ll work in a cross-functional team to design scalable backend services and maintain React-based frontend surfaces, driving impact through experiments and reliable delivery. This position blends backend focus with...

Overview Enthusiastic leadership role building an AI-powered precision medicine platform at UCB's Barcelona R&D Hub. You will own the platform from architecture to deployment, collaborating across clinical, bioinformatics, IT and wet-lab teams. You’ll advance AI capabilities and enable researchers to translate clinical and imaging data into actionable...

Beigar busca un/a Desarrollador/a Full Stack Senior para un proyecto propio, con al menos 5 años de experiencia en desarrollo de aplicaciones web y dominio de JavaScript Vanilla y Node.js. La posición es 100% remota y se desarrolla en equipo internacional que opera en inglés bajo metodología Scrum.Si te motiva trabajar en un entorno técnico con...

A SoftNeos som una enginyeria informàtica especialitzada en el desenvolupament, gestió i distribució de serveis informàtics al sector públic i empresarial. Som una empresa altament innovadora amb un equip jove i talentós format per 12 persones que ens agrada allò que fem. Disposem de tres productes estàndard i un mercat consolidat, amb més de...

Descripción del puesto / FuncionesEstamos buscando un/a Full Stack Web Developer con fuerte orientación backend para unirse al equipo de productos de IA que desarrolla una plataforma Multi-cloud de GenAI (Azure, AWS, Google Cloud), con foco principal en el servicio Secure GPT.Se trata de un rol técnico clave en un entorno internacional, donde...

Descripción del puesto / FuncionesEstamos buscando un/a Full Stack Web Developer con fuerte orientación backend para unirse al equipo de productos de IA que desarrolla una plataforma Multi-cloud de GenAI (Azure, AWS, Google Cloud), con foco principal en el servicio Secure GPT.Se trata de un rol técnico clave en un entorno internacional, donde...

Embrace DevOps, taking responsibility for your team's services from requirement analysis to operation. Make architectural decisions with your team to ensure high performance, robustness, and maintainability of the application, especially during the transition from on-premise to the cloud. Experience in front-end technologies such as HTML5, CSS3,...

Senior Full Stack Engineer Remote Barcelona Full-time Salary: €50k–€80k Lexroom.ai is building an AI product to revolutionize how legal professionals work, saving time and boosting productivity. Lexroom.ai is building the AI platform where legal work gets done. In just over two years, we've grown from zero to €25M ARR, and today more than 20,000...

Location: Barcelona and surrounding area Working model: Hybrid – 4 days remote, 1 day per week in our Barcelona office Office: KPS Iberia, C/ Pau Claris 162–164, 08037 BarcelonaAbout KPSKPS is a global consulting and technology company delivering digital transformation and e-commerce solutions for leading international clients. Para presentar una...

Overview En Pasiona Consulting buscas un Desarrollador Web Full Stack con foco en backend para nuestro equipo de IA. Trabajarás en una plataforma multi-cloud de GenAI, con énfasis en el servicio Secure GPT, asegurando seguridad, escalabilidad y cumplimiento. Colaborarás en el diseño, desarrollo y mejora de capacidades de IA generativa dentro de un...

Pillar is hiring a Full Stack Engineer to help build the AI-first platform for Italian SMEs and growing startups. You’ll work in a fast-paced squad, owning features from idea to production with a hands-on, high-energy team.The role emphasizes ownership, collaboration, and delivering value with a lightweight, agile approach in a fast-growing environment....