Empleos de contract full-stack engineer en Madrid

We're looking for aFull Stack Engineerfor one of our clients who enjoys building new products from the ground up and is eager to help shape AI tooling for the mobility industry.Work across the full stack to solve complex problems using incomplete and messy dataDesign and evolve canonical data modelsBuild pipelines to handle real-world data inputsDefine and...

Nextlane in Vigo, Spain is seeking a senior engineer to own and deliver complex features across backend and frontend using .NET and React/Next. You will drive architecture decisions, mentor others, and collaborate with Product, Design, and Engineering to ship high-quality software for the automotive industry.Join a growth-oriented, globally minded team that...

Jobgether SRL is seeking a Senior Full Stack Engineer (NET/React) based in Spain to build scalable, secure, and high-performing applications across backend and frontend layers. You will work with .NET/C#, React, Redux, and JavaScript, shaping architecture and development practices, and contributing to cloud-based solutions on GCP with CI/CD.You will mentor...

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 2023 with the first human‑like AI voice model. Today, we serve millions of users and thousands of businesses -...

Remote Europe / LATAM | $100K–$120K + equityMost customer service chatbots can answer simple questions. As soon as you need a refund, return or help with a missing order, you usually end up speaking to a human.I'm hiring Senior Full Stack Engineers for a Series A company building AI agents that can actually resolve those problems.Their agents connect to a...

This job is with Aqualia, an inclusive employer and a member of myGwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly. Function¿Te imaginas participando en la transformación del sector del agua y desarrollándote en una empresa innovadora? En Aqualia tenemos ese compromiso. Queremos...

Simple Life is the #1 AI-powered health coaching app for adults who want to lose weight and enjoy a healthier lifestyle-without the stress or extremes. Our mission is to empower people to feel their best every day. By challenging traditional, restrictive approaches, Simple offers a more sustainable method grounded in ease, personalization, and real-life...

At Affir, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most.Financial Systems owns the data and reporting foundation for Accounting, and the operational reliability of the pipelines that power reporting, reconciliations, and automation. We...

Mondelez International Inc. busca un Desarrollador Full-Stack Senior para unirse a su equipo. El puesto, que se realiza de forma remota desde Madrid, implica diseñar, desarrollar y desplegar aplicaciones web modernas. Colaborarás con UX/UI designers, PMs y otros ingenieros para entregar nuevas funcionalidades. Se espera código limpio, pruebas unitarias y...

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Full Stack Engineer (.NET/React) based in Spain. As a Senior Full Stack Engineer, you will build and evolve scalable, secure, and high-performing applications across both backend and frontend layers. You will work...

Lever, Inc. is seeking a Software Engineer (Front and Back end) based in Spain. You will contribute across frontend and backend development to build reliable, scalable applications in modern cloud environments. Technologies include Java, JavaScript, Python, React, Angular, Vue.js, and containerization with Kubernetes, Docker, and Containerd. You will deploy...

Who we areVOIS (Vodafone Intelligent Solutions) is a strategic arm of Vodafone Group Plc, creating value for customers by delivering intelligent solutions through Talent, Technology & Transformation. As the largest shared services organisation in the global telco industry with 30,000 FTE, our portfolio of next-generation solutions and services are designed...

AI Engineer / Full Stack Developer - AI Reporting & Insights - Barcelona or Warsaw based Madrid, Spain Warsaw, Poland Full time R- Job Description Are You Ready to Make It Happen at Mondelēz International? Join our Mission to Lead the Future of Snacking. Make It Uniquely Yours. You provide software and application knowledge to support implementation of the...

¡Capitole Consulting sigue creciendo y queremos hacerlo contigo!Si tienes ecperiencia comoFull Stack (Python + Angular) , te estamos esperando!Formato híbrido: 2 días oficina + 3 días teletrabajoHorario flexible y jornada intensivalos viernesDiseñar y desarrollar nuevas funcionalidades para aplicaciones y portales internos. Desarrollar componentes...

¿Tienes experiencia como Fullstack Developer y quieres seguir creciendo en un proyecto tecnológico estable y de largo recorrido? ¡Esta oportunidad puede ser para ti! Enagap2buscamos incorporar un/aFullstack Developer Senior / Mid-Seniorpara participar en un proyecto tecnológico estable, formando parte de un equipo orientado al desarrollo y evolución de...

Categoría Informática y telecomunicacionesSector Energía renovable y medio ambienteJornada laboral CompletaModalidad de trabajo PresencialNivel profesional EspecialistaEn ABEI estamos construyendo una de las empresas que va a decidir cómo se mueve la energía limpia en este mercado. Lo hacemos a máxima velocidad, en un sector que todavía se está...

Estamos buscando un/a Full Stack Developer senior con experiencia para unirse al equipo nuestro cliente en Lleida. Serás parte clave en la creación y mantenimiento de proyectos digitales, colaborando con equipos multidisciplinares y gestionando soluciones innovadoras en un entorno tecnológico en constante evolución. Si tienes experiencia en desarrollo...

Performanzees una solución digital para validar, escalar y optimizar negocios online. Ayudamos a Empresas, Startups y Scaleups a aumentar su rendimiento, impulsar su rentabilidad y conseguir objetivos. Performanze forma parte deSubdiagonal , un grupo de empresas global en la vanguardia de la innovación, tecnología y emprendimiento, integrando un...

Key Responsibilities:Design, develop, and maintain efficient, high-quality code to train and optimize AI models. Conduct evaluations to benchmark model performance and analyze results for continuous improvement. Evaluate and rank AI model responses to user queries across diverse domains, ensuring alignment with predefined criteria. Develop comprehensive...

Company Description?About OmniAccess OmniAccess is a leading managed service provider of premium connectivity, networking and cyber solutions. From our headquarter in Palma de Mallorca we cater services for superyachts, boutique cruise and research vessels, with a very strong commitment to service quality & availability. As part of our integral end-to end...