Empleos de full stack engineer annotator en Barcelona

Backend-focused full-stack product engineer responsible for designing, building, and operating AI-native software, focusing on real-time decision streaming for the aviation industry.

Tamarind Intelligence en Barcelona busca un Senior Full Stack Engineer con foco en ciberseguridad para una plataforma de gestión de vulnerabilidades a escala global. El puesto es híbrido, con autonomía en decisiones técnicas y oportunidad de crecer hacia Tech Lead.Se valora experiencia fuerte en Python/FastAPI, React y entornos cloud (AWS); experiencia...

Founding Full-Stack Engineer I Tech Lead Sobre el reto Estamos en esa fase de una startup que es, a la vez, la más divertida. Tenemos producto, tenemos tracción y tenemos un equipo técnico de tres personas con ganas de comerse el mundo. Lo que no tenemos es a la persona que ponga orden en la arquitectura, defina la cultura de ingeniería y lidere la...

T-Systems, part of the Deutsche Telekom Group, is seeking a Senior Software Developer with Java, Angular and DevOps skills. You will design, implement and maintain backend, frontend, and deployment pipelines for a range of business challenges in a global setting.You will work with Java, Spring, PostgreSQL, Angular/TypeScript, Docker and Kubernetes,...

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:...

We are bsport. The place to be! bsport is an all-in-one platform combining boutique fitness and advanced technology. Our platform helps our partners manage their bookings, payroll, marketing and more, to streamline operations and boost their commercial success. Since we launched in 2019, we have already achieved the following: We’ve built a community of...

***** SHORT VERSION *****¿Está considerando presentar su candidatura para este trabajo?Compruebe todos los detalles en esta descripción del puesto y luego haga clic en "Solicitar".We're building an AI-native platform with autonomous agents, smart workflows, and real-time voice interactions.Looking for a Full-Stack Engineer.Salary: €60k-€80kHybrid: BCN...

Full-stack engineer to build AI-native platform with autonomous agents.Requires experience with React/Python, 4+ years of experience, and AI/LLM proficiency.

Seeking a senior full-stack engineer to own product development, drive projects, and implement features.Responsibilities include research, wireframing, and collaboration.Offers competitive salary and benefits.

We help people discover the magic of the perfect tutor, craft a personalised learning journey, and stay motivated to keep growing. Our approach is human-led, tech-enabled - and it's creating real impact. We've just reached unicorn status with a $150M Series D, accelerating our vision to transform education through human-led, AI-enhanced learning. As a...

Freelance Senior OR Junior Full Stack Developer – React / Next.Js / Node.Js – Barcelona You will collaborate closely with the Tech Lead, Product Owner, UX Designer, and Data team to design, develop, and deliver high-quality features within an agile environment. Responsibilities Develop and maintain complex, data-heavy user interfaces using React and...

Backend-heavy Full Stack Engineer to design, build, and maintain scalable microservices and user experiences, focusing on Java, Spring Boot, TypeScript, and React in a hybrid Agile environment.

Remoteo en Barcelona busca un Full Stack Developer para unirse al Digital Innovation Hub. Se trabajará en desarrollo de aplicaciones web SPA con Java, Spring Boot y React, en un entorno híbrido con 3 días de teletrabajo por semana.El equipo se centra en ecommerce, configuración de producto y analytics, buscando tomar ownership, colaborar con negocio y...

NALTO busca ingeniero(a) full‑stack para trabajar con IA y clientes en España. Serás responsable de diseñar, construir y desplegar soluciones que conecten AI workers con el negocio real de las medianas empresas.Se valorará dominio de React, TypeScript, Node.Js y experiencia en entornos de startup. Trabajarás en un modelo híbrido en Barcelona,...

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 Vue JS to deliver user‑friendly interfaces.Collaborate closely with client teams to meet requirements and deliver scalable solutions. Responsibilities include designing, developing,...

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, TypeScript, Node.Js, and Python, while designing AI/ML applications and refining LLM prompts to improve outcomes. Collaboration...

Lever, Inc. is seeking a Staff Full Stack Engineer - Sell Side Engine based in Spain. The role focuses on hands-on engineering to rebuild systems supporting origination, contracting, onboarding, and growth in a rapidly scaling energy technology environment.You will own architecture decisions, work across pricing, data, billing, and risk platforms, and...

Noloco is seeking a Senior Full Stack Software Engineer to own features across frontend and backend, building AI-powered tools and scalable APIs. You’ll work on GraphQL, Node.Js, React, and data models, delivering delightful UX and robust performance.In a hybrid setup with Barcelona as a base, you’ll collaborate across product, design, growth, and...

Neotalent Conclusion busca un/a ingeniero/a de software con experiencia en IA para diseñar soluciones escalables y orientadas a producción sobre Microsoft Azure. Desarrollarás APIs y servicios backend, integrando LLMs, NLP y otras capacidades de IA en aplicaciones empresariales.Colaborarás con Data Science, AI Engineering y Frontend, optimizando...

Amaris Consulting, part of Mantu, seeks a Senior Full-Stack Engineer to join an international team building an AI-powered payroll platform. You will contribute across the stack—from micro frontends to cloud AI agents—and integrate with enterprise payroll systems. You will design Python-based services, develop. NET Core APIs, and work with Angular micro...