Empleos de backend full stack engineer en Madrid

Expedia Group in Madrid is hiring for a TAAP engineering role. You will design, build, and deliver scalable B2B travel platforms using Java/Kotlin/Scala and React.js, contributing to API design and microservices. You'll work in a distributed team, collaborating with product and design while maintaining production systems and improving DevOps practices in a...

A leading software company in Madrid is seeking a Senior/Lead AI Software Engineer to architect and scale AI-driven products. The ideal candidate will have over 5 years of full-stack development experience and 2+ years in AI/ML engineering, with expertise in Rust or Golang. Responsibilities include developing AI features, integrating LLMs into...

Descripción del puesto / Funciones Estamos 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...

T-Systems, Teil der Deutsche Telekom Gruppe, sucht einen Senior Software Developer mit Schwerpunkt Java, Angular und Dev Ops, um Front-End-, Back-End- und Dev Ops-Lösungen zu gestalten und zu warten. Sie arbeiten eng mit Product Ownern und cross-funktionalen Teams zusammen, um Anforderungen zu verstehen und Produkte sowie Services zu optimieren. Hybrides...

Affirm, Inc. is hiring a Software Engineer II, Fullstack (Repayment UX) to join our remote-first team based in Spain. You will help design and ship backend systems and web apps using React or Vue, with optional React Native experience.The role supports a European-wide time zone and requires on-call rotation. The Repayment UX team works across product,...

Mondel?z International seeks a Full Stack AI Engineer to join a growing engineering team building a new AI-powered insights platform.You will design and deliver intelligent systems turning market data into decision-ready recommendations for global, regional, and local teams.The role covers full stack development, AI/ML engineering, and data engineering with...

Expereo International is seeking a Full Stack Engineer to join the Commercial STO, driving front-end React/Type Script and the Node.js service layer, with strong ties to Salesforce integrations. You will own features end-to-end from API design through production deployment, collaborating with product, operations, and architecture teams. You will work across...

JAVA Software engineer for Defense Projects | Job DetailsIf you have always dreamt about being a hero, but your character in an action movie would be Dead in Combat #3... We are expanding our teams in the Defense & Security sector to take on cutting-edge international projects in Command and Control (C2) Systems, integrating advanced Artificial Intelligence...

JAVA Software engineer for Defense Projects | Job DetailsIf you have always dreamt about being a hero, but your character in an action movie would be Dead in Combat #3... We are expanding our teams in the Defense & Security sector to take on cutting-edge international projects in Command and Control (C2) Systems, integrating advanced Artificial Intelligence...

Grupo Crit busca un/a Senior Full Stack Developer para unirse a su equipo en Lleida. Serás clave en la creación y mantenimiento de proyectos digitales, trabajando con equipos multidisciplinares y gestionando soluciones innovadoras en un entorno tecnológico en evolución. Se valorará experiencia en desarrollo full stack, conocimiento de tecnología...

Jornada: Completa (horario flexible a definir) Dependencia jerárquica: Reporta al CTO Sobre la Fundación Maldita.es La Fundación Maldita.es es una fundación sin ánimo de lucro con sede en España que protege la integridad de la información y promueve la construcción de confianza ciudadana a través de periodismo, educación, tecnología,...

About the Role Working with a Series B Tech startup within energy industry. We are looking for a Staff Full Stack Engineer to lead technical vision, architectural design, and execution across systems driving their expansion. You will build high-impact backend infrastructure, automate tendering workflows, design deal-gating risk tooling, and deploy agentic...

Kapa makes technical knowledge instantly accessible through AI assistants. As a software engineer you will work across the stack on the Kapa systems that answer thousands of developer questions per day. Check out Docker’s documentation (https://docs.docker.com) for a live example of what Kapa is (look for the “Ask AI” button). In This Role, You Will *...

Full Stack Engineer (Backend focused) The company and our mission: Zartis is a global AI transformation and technology consulting partner where talented engineers and technologists work on cutting edge innovation. We partner with ambitious organizations to design, build, and scale technology solutions that deliver real impact. Our teams bring deep...

* We’re launching a new team dedicated to modernizing and expanding one of our customer-facing tools — and we’re looking for a Senior Full Stack Engineer to help build it from the ground up * This isn’t a legacy product handoff: you’ll be joining at the very start, shaping both the technical direction and the team culture from day one * The current...

remoteo busca profesionales con experiencia en desarrollo web full stack usando React y .NET, capaces de migrar aplicaciones WinForms a una arquitectura web moderna. Se valoran APIs REST y SQL Server, Git y CI/CD en entornos ágiles.La empresa ofrece plan de carrera, formación continua, proyectos nacionales e internacionales con movilidad, tarjeta...

APPTIVA CORE TECHNOLOGIES is seeking a Fullstack Developer to join our team in Madrid, Spain. This role involves working in a cross-functional team responsible for the entire software development life cycle, from conception to deployment. You will design and build scalable software solutions while ensuring high standards of security and data protection.The...

Taxfix is seeking a Senior Software Engineer to build core features for our flagship product, turning complex tax scenarios into simple, reliable experiences. You will work in a cross-functional team, owning end-to-end delivery from discovery to release while embracing AI-first software development. You’ll contribute to scalable design and maintainable...

AD4 Octógono busca un Desarrollador/a Fullstack Senior (MERN) para diseñar y construir soluciones web completas, robustas y escalables, tanto en frontend como en backend, con impacto directo en producto y negocio.Formará parte de un equipo técnico internacional, participando en diseño, desarrollo y evolución de aplicaciones modernas, con APIs REST,...

¡En Ayesa Digital crecemos Contigo! Cada profesional de nuestra empresa es importante para nosotros, nos ayudan a crecer de manera diversa y gracias a ellos somos 11.000 personas trabajando con el mismo objetivo en 10 países. Si eres una persona entusiasta y buscas un nuevo reto profesional, ¡Este es tu sitio! ¿Qué harás? * Desarrollar aplicaciones web...