Empleos de contract full-stack engineer en Madrid

Happyrobot Inc. is seeking a Forward Deployed Engineer in Barcelona to enhance customer use of AI solutions. You will work directly with clients from onboarding to ongoing support, ensuring they leverage the HappyRobot platform effectively.This role requires strong full-stack experience (React, TypeScript, Node.Js) and proficiency in Python. You'll...

Se busca un desarrollador Full Stack con enfoque backend Java, experiencia en microservicios, Cloud y sistemas distribuidos. Debe diseñar, implementar y evolucionar soluciones escalables, integrando con diversos sistemas y trabajando en entornos CI/CD. Requiere nivel B2 de inglés.

ElevenLabs is seeking Full-Stack Engineers to build and maintain front-end and back-end components for our Creative & Studio products, including Image/Video, Flows, and Audiobooks. You will work across voices and AI models to deliver scalable features used by millions of users.We offer flexible staffing, autonomy, and a global remote setup, with...

Arsys ES is seeking a Specialist Full-Stack Execution for the Euro Office Performance Group (Server Development) team. You will lead high-volume feature and bug-fix execution across the document suite, acting as a bridge across pods to unblock bottlenecks and accelerate delivery.The role emphasizes refactoring legacy JavaScript using AI-driven methods, rapid...

Joppy is looking for a proactive Product Engineer in Barcelona to design impactful features for restaurant operations. You will work on building and maintaining a full-stack platform while enhancing automation with AI.The ideal candidate has at least 3 years of experience in SaaS development, familiarity with TypeScript, React, and Node, and fluent Spanish....

¿Te interesaría seguir desarrollándote comoAI Product Engineeren unamultinacional líder del sector retail/moda, participando en un entorno deinvestigación, innovación y transformación digitaldonde podrás utilizartecnologías de vanguardia e IAy tener impacto directo en el negocio?Desde Oxigent Technologies seleccionamos un/aAI Product Engineerpara...

T-Systems sucht einen Senior Software Developer mit Java, Angular und DevOps-Kenntnissen. Sie entwerfen, implementieren und warten Backend-, Frontend- und DevOps-Lösungen in einem anspruchsvollen Umfeld und arbeiten eng mit Product Ownern sowie funktionsübergreifenden Teams zusammen, um geschäftliche Herausforderungen zu lösen.Sie profitieren von einem...

Anywhere within Spain, Spain | Posted on 09/09/2026On this occasion, we are looking for aSeniorFull-Stack Engineerto join our Network Intelligence area. As a Future Connections developer, you will be part of a multidisciplinary team of Telco engineers and software developers building cross-platform applications fornetwork optimisation, automation,...

Hopper is seeking a senior full stack engineer to anchor HTS Assist, our agentic AI assistant for travel. You will own the realtime and voice layer end to end, building React/TypeScript front ends, Scala/Python services, and cloud infrastructure.The ideal candidate has 6+ years of experience and a track record with realtime/low-latency systems, RESTful APIs,...

CoatingAI is seeking a Full-Stack Engineer to join our growing team in Barcelona, working in a hybrid setup to power the next generation of intelligent industrial coating systems. You’ll own features end-to-end, work across frontend and backend, and ship solutions that run in real factories alongside AI, 3D measurement, and automation components.Required:...

Schwarz Digits is seeking a software developer to join its cross-functional agile team in Barcelona. You will contribute to the entire development lifecycle, collaborating with QAs, designers, and product owners to deliver high-quality software.The role emphasizes building reliable software and participating in the development of the product, with a focus on...

Closer Logistics busca un Senior Full Stack Engineer con mínimo 5 años de experiencia para desarrollar y mantener aplicaciones y servicios en producción. Se valora experiencia en PHP 8+, Symfony, Python y arquitectura de microservicios, con despliegue en GCP y contenedores Docker/Kubernetes.La posición ofrece teletrabajo según el proyecto, horario...

Barcelona, Spain | Senior Engineering OpportunityMaxIT Consulting – Max Corporate Group is looking for a Senior Full-Stack Engineer – AI-Native Applications to join a fast-growing European technology company building an AI-powered workforce platform for the healthcare sector.The company operates a multi-sided marketplace used by hundreds of hospitals and...

Ubicación: Madrid (trabajo 100% presencial, 4/5 días en oficina)Fusuma es una firma boutique que combina tecnología y estrategia para lanzar nuevos negocios. Diseñamos, desarrollamos y lanzamos productos digitales desde cero, trabajando con startups y empresas consolidadas.Nuestro equipo multidisciplinar trabaja desde el corazón de Madrid (Avda...

Talan is seeking a Senior Full Stack Developer in Málaga, Spain, to design and implement high-quality enterprise applications. The role demands strong backend development skills, experience with Java and Spring Boot, plus expertise in modern frontend frameworks.The ideal candidate will thrive in an Agile team, leveraging AI tools throughout the software...

Cenero in Malvern, PA is seeking a Software Engineer II to design and implement features across the full stack, including responsive UIs and robust server-side systems built on Microsoft.NET.You will collaborate with Product Owners and engineers, leverage AI development tools, and own changes from requirements to release, ensuring quality, security, and...

Senior Full Stack Developer sought for hybrid role, focusing on designing, developing, and evolving scalable software solutions using .NET, Angular, and cloud technologies. Requires expertise in APIs, microservices, databases, and CI/CD.

Capitole busca un perfil Full-Stack para un proyecto internacional. Desarrollar y mantener aplicaciones escalables con Java y Spring Boot, cubriendo todo el ciclo de vida de las apps, desde desarrollo hasta operación, con decisiones técnicas y arquitectura.Se trabajan APIs REST, bases de datos y microservicios en un entorno colaborativo. La experiencia en...

Welcome to MVST. We’re a full product delivery studio based in Munich and Barcelona, on a mission to help companies build products and services that truly make a difference in the world.Our ServicesFull Product DeliveryProduct Management & StrategyUI/UX DesignSoftware DevelopmentDevOps / MLOps / AIRole OverviewDevelop and maintain web + mobile applications...

En Second Window estamos experimentando un fuerte crecimiento en nuestros proyectos financieros y bancarios avanzados. Buscamos incorporar dos perfiles clave para nuestro equipo de desarrollo: un Senior Full Stack Developer.Requisitos Técnicos5 años de experiencia como Desarrollador/Ingeniero de Software Full Stack (preferiblemente con enfoque...