Empleos de senior full-stack engineer api en Madrid

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...

Lever, Inc. is seeking a Product Engineer based in Spain to join a fast-growing AI environment. You’ll own features from idea to release, shaping frontend with Next.js and backend with Django and PostgreSQL, and work directly with the founder to bring ideas into production. This role offers high autonomy, minimal meetings, and the chance to influence 3D...

Full-Stack EngineerOwn products for years rather than weeks — build them properly, keep them alive, and make the agentic build method something a team can rely on.Mainloop is a new engineering team inside an established international group. We are in Barcelona, we are being built from scratch this year, and we have the backing, the customers and the...

Descripción: En Second Window buscamos un/a Senior Full Stack Developer / Senior Python Developer con mínimo 6 años de experiencia profesional en desarrollo de aplicaciones empresariales y experiencia práctica trabajando con Python, bases de datos, procesos batch y Apache Kafka.Buscamos un perfil con sólidos conocimientos de Python, Oracle y...

¿Quieres formar parte de nuestro equipo de Profile?Desde Profile nos encontramos en búsqueda de un/a Mid-Senior Fullstack Developer para integrarse en un proyecto 100% remoto.Con ilusión es como se cambian las cosas, y queremos contribuir a un futuro mejor gracias a la tecnología. Para conseguirlo no necesitamos héroes ni súper talentos, sino personas...

Jobgether SRL is seeking a Full-Stack Engineer (Backend Leaning) – Payments Engineering, based in Spain. You will build and evolve the payment infrastructure powering billing, usage tracking, pricing, and payment processing for self-service and enterprise customers in an AI-focused environment. This remote role offers significant technical ownership,...

Pyramid Consulting, Inc. is seeking a remote contractor for a four-month engagement to evaluate and prototype video conferencing integrations for Zoom and Webex, focusing on building custom meeting experiences and end-to-end prototypes. You will assess platforms, document findings, and deliver proof-of-concept implementations spanning frontend, backend, and...

¡En Optima Retail seguimos creciendo!Buscamos un/a Senior Full Stack Developer — Laravel / React / IA que quiera asumir un reto tecnológico con impacto real y formar parte de un equipo dinámico, con autonomía para proponer, diseñar y construir soluciones.¿Quiénes somos?En Optima Retail tenemos la misión de ofrecer el mejor servicio de mantenimiento...

Darwin Recruitment is seeking an experienced Full Stack Developer for a 6-month freelance engagement in Barcelona, hybrid work with a client in Financial Services. You will work across the full stack on a .NET/C# backend and an Angular frontend, building and maintaining REST APIs and backend services. The ideal candidate has 5+ years' experience, strong...

Grupo Crit busca un/a Senior Full Stack Developer con experiencia en entornos Cloud para unirse a nuestro cliente en Lleida. Serás pieza clave de la dirección técnica en un producto en evolución, con visión de producto y capacidad para estabilizar y acompañar al equipo en su evolución técnica. Responsabilidades: dirigir la arquitectura técnica...

HIPRA, empresa farmacéutica y biotecnológica, busca un/a Senior Full Stack Developer para sus oficinas en el Campus HIPRA en Aiguaviva (Girona). Incorporarás soluciones SPA con front-end Angular y back-end Java/Spring Boot, con Capacitor valorado. Se requiere Ingeniería Informática y 3–5 años de experiencia en desarrollo full-stack; trabajarás en un...

DescriptionWe're looking for a full-stack engineer to join our Product Engineering team, reporting to one of the Engineering Managers of the Marketplace area, with a dotted line to the Marketing SEO Manager, focused on supporting the Growth and Marketing area. This role will have a 60% focus on Front End, and 40% focus on Back End.You'll work on...

Experteer Overview As a Full Stack Software Engineer at Serco, you will design, develop and maintain software supporting Science Operations Centres across the mission lifecycle. You will work with cross-mission teams to enable reuse, harmonisation and shared frameworks for ESA missions. You’ll operate in Agile and DevOps settings, delivering reliable...

Optima Retail busca un/a Senior Full Stack Developer con experiencia en Laravel y PHP, y capacidad para avanzar en el frontend con React. Se valorará conocimiento en IA y APIs de IA para productos conversacionales. El candidato ideal aportará autonomía, ownership y capacidad para tomar decisiones técnicas, trabajando en soluciones que marquen la...

Journi is seeking a Full Stack Engineer with expertise in .NET and Vue to build web applications end‑to‑end. You will work on frontend and backend tasks, using .NET 6+ and VueJS to deliver user‑friendly interfaces.Collaborate closely with client teams to meet requirements and deliver scalable solutions. Responsibilities include designing, developing,...

MVST is looking for a Full Stack Developer to join their team in Barcelona. You will develop and maintain web and mobile applications while collaborating with cross-functional teams. The ideal candidate has 2-4 years of experience in full-stack development with proficiency in JavaScript frameworks, Node.Js, and database technologies.The company offers a...

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...

Selecciona la frecuencia (en días) para recibir una alerta:Experiencia requerida: Más de 2 años de experienciaModalidad del puesto:EnIndra Groupdesarrollamos tecnología para hacer más seguro, eficiente y conectado el transporte aéreo.Desde nuestra unidad deATM, participamos en sistemas críticos de gestión del tráfico aéreo, comunicaciones,...

Jobtailor is seeking a driven full-stack engineer to work closely with customers from onboarding through ongoing usage, helping them integrate and optimize our AI solutions. You will build new features and scalable tools using React, Type Script, Node.Js, and Python, while designing AI/ML applications and refining LLM prompts to improve outcomes....

Inglés fluido.We are knowmad mood!Somos una compañía líder en transformación digital, en constante evolución y a la vanguardia de la tecnología.Nacimos para provocar un cambio real a través de la innovación y el desarrollo sostenible, con la misión de aportar valor a los clientes e impulsar nuestro talento.Formado por más de 3.000 personas...