Empleos de contract full-stack engineer en Madrid

TalentLyft is seeking a Senior FullStack Developer ready to step into a Team Lead role for a complex AI‑powered platform handling users, roles, and permissions. You will work remotely across Europe on a 6–12+ month engagement, collaborating with a PM, designer, and engineers to build a compliant, security‑driven system. You will design scalable...

Mondelēz International seeks an AI Engineer / Full Stack Developer for AI Reporting & Insights, Barcelona or Warsaw based. You will design, build, and deploy data pipelines and AI models turning market data into decision-ready insights for stakeholders globally. You will collaborate with Product, Data Science, and Business teams, implement CI/CD, IaC with...

Mondelēz International is seeking an AI Engineer / Full Stack Developer to join Mondelēz Digital Services. This role is based in Madrid, Barcelona or Warsaw and focuses on building an AI-powered insights platform that turns market data into decision-ready recommendations for teams worldwide. You will design data pipelines, deploy AI/ML models, and ship...

About ElevenLabsElevenLabs is an AI research and product company transforming how we interact with technology.About ElevenLabsElevenLabs is an AI research and product company transforming how we interact with technology. We launched in January **** with the first human?like AI voice model. Today, we serve millions of users and thousands of businesses - from...

Mainloop Barcelona is building a new engineering team in Barcelona to own production software, from idea through launch, leveraging AI agents and a shared architectural framework. This role emphasizes deep technical ownership, architectural decision-making, and a strong collaboration with product owners and other engineers.As a Frontline engager in an...

EY GDS Spain is seeking a Senior Full Stack Developer with strong Angular and Spring Boot experience to design, build, and maintain enterprise web apps. You will ensure accessibility with WCAG 2.1 AA and collaborate with global teams to deliver scalable, secure solutions.You will drive frontend architecture, mentor juniors, and contribute to CI/CD in a...

Findnido está buscando un Ingeniero/a de Software Full Stack Senior para liderar la próxima fase de crecimiento tecnológico. Serás el primer Tech Lead y combinarás desarrollo hands-on con responsabilidad técnica, estableciendo estándares y dirigiendo decisiones de arquitectura a medida que la empresa escala.Trabajarás en un equipo de 20 personas,...

A software company in Las Palmas seeks a Senior Software Engineer to lead the development of web and mobile applications. The role involves collaborating with cross-functional teams and integrating AI tools into workflows. Candidates should have over 6 years of experience in software development, system design skills, and a Master's degree in Computer...

Davidson Consulting España busca un Senior Full Stack Developer con sólidos conocimientos en Inteligencia Artificial para desarrollar e integrar soluciones de IA en entornos de producción. Trabajarás en un equipo Agile Scrum, colaborando con científicos de datos e ingenieros de IA, enfocando el desarrollo backend y la IA de extremo a extremo.Se...

BESTSECRET in Málaga is expanding its tech hub and hiring a Full Stack Software Engineer to build a Kubernetes-based supply platform. You will develop backend services in Java/Spring Boot, collaborate with product, design, and BI teams, and help automate end-to-end purchasing and onboarding workflows.The role emphasizes data-driven decision-making,...

Second Window busca un Senior Full Stack Developer para impulsar proyectos financieros y bancarios. Se requiere dominio en Java Spring Boot, Angular y bases de datos SQL, con experiencia en CI/CD, microservicios y DevOps. Se valorará IA integrada en flujos de entrega.La oferta es 100% teletrabajo desde España, con contrato indefinido desde el primer día y...

EY GDS Spain is seeking a highly skilled Full-Stack Engineer (Python and Angular) to build modern web applications and actively explore AI features such as LLM APIs, embeddings, and RAG workflows to enhance real‑world products.Join a hybrid work model with opportunities for career development, collaboration with product, design, and AI teams, and a culture...

Portless is seeking a senior full-stack engineer to own and scale major pillars of our global supply chain platform, delivering end-to-end features for the B2B portal and logistics engine.You’ll design heavy-duty API integrations with OMS/WMS/TMS, build in a serverless, cloud-native stack, and drive resilient architectures in a remote-first, globally...

Taptap Digital is looking for a Full Stack Software Engineer based in Palma de Mallorca to develop and maintain a global technology platform. You will work directly with various teams to deliver high-quality solutions for thousands of users worldwide.The ideal candidate has a strong background in JavaScript, TypeScript, and ReactJS, and enjoys solving...

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...

Buscamos un Full Stack Developer con experiencia y criterio técnico para asumir un papel relevante en la evolución de nuestra plataforma tecnológica. Sobre VDOS VDOS es una compañía tecnológica especializada en datos, análisis y soluciones digitales para la industria de gestión de activos, con más de 25 años de trayectoria y una posición de...

Campmanyabogados busca un/a Full-Stack Developer en Barcelona para unirse a su equipo de IT en plena transformación digital. El candidato/a será responsable de garantizar el desarrollo y mantenimiento del ecosistema Salesforce.Se valorará experiencia en Apex y LWC, así como la habilidad para trabajar en aplicaciones externas. Se ofrece un entorno...

As a founding member of our new Barcelona R&D Hub, you will help build the AI-powered precision medicine platform that transforms clinical and molecular patient data into insights that accelerate drug discovery and improve patient outcomes.To help drive this vision, we are looking for a curious, collaborative and solutions-focused Lead Full-Stack AI Product...

Longtail Technologies, Inc. is seeking a senior backend/full-stack engineer to help build and evolve Sightline, our conversational analytics and intelligent alerting platform.You’ll own features end to end—from customer problem through to production—with a focus on reliable, observable systems and AI-native workflows. This backend-focused role requires...

Cheiron, headquartered in Los Altos, CA, is seeking a Full Stack Engineer, Applied AI to help build its core product and infrastructure. This role spans backend systems, AI workflows, RAG and search pipelines, APIs, and the customer-facing product itself.You'll craft end-to-end features across the stack, grounding AI outputs with verifiable citations for...