Empleos de full stack engineer annotator en Madrid

LanguageWire Ltd is hiring a Senior Full Stack Engineer to lead the build of a new customer-facing tool from ground up. You will influence architecture, tech direction, and team culture from day one, collaborating with a Product Manager and one more Engineer to shape the team and product. You’ll own front-end interfaces, back-end services, databases, and...

Mid–Senior Level | Engineering – Integrations & Product About the Role We're looking for a mid-to-senior fullstack developer to help build and evolve this platform end to end — from the Java/Spring backend services to the React-based frontend — while working closely with the teams responsible for third-party integrations, platform infrastructure,...

# Desarrollador/a Full Stack JavaHybrid in Spain: MadridJava& 9 othersITSM Tooling Engineer (BMC Helix)SpainSenior BPM Engineer (Flowable)Spain, MadridSenior Java Software EngineerSpain, MadridSenior Test Automation Platform EngineerSpain, MadridLooking for something else?Find a vacancy that works for you. Send us your CV to receive a personalized offer.Find...

Restb.ai, Barcelona-based, seeks a Senior Full Stack Engineer to lead our public-facing web app and guide a dedicated engineering team. You will build scalable features using Angular on the front end and Python on the back end, ensuring robustness for a global user base. The role focuses on architectural leadership, mentoring, and delivering high-quality,...

Avooq is an innovative AI startup that generates complete instant novels on demand. Our mission is to revolutionize literary creation with advanced AI technology, enabling users to obtain coherent and personalized stories in seconds. We believe in the power of AI to democratize storytelling and transform digital entertainment. We are seeking a talented and...

Develop challenging coding test cases for AI systems, focusing on full-stack development with Python and React. Analyze AI failures and iterate based on feedback. This is a part-time, project-based role.

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...

Wolters Kluwer is seeking a Senior Product Software Engineer - AI Native in Barcelona. You will design, develop, and refine software solutions, collaborating across teams to align with customer needs and industry standards. You will shape full-stack solutions, drive performance, and lead testing strategies for enterprise-grade applications.The role...

As a Full-Stack Java Engineer in our Defense & Security team, you will contribute to high-performance C2 applications, spanning web and desktop solutions. You'll design and optimize secure architectures with REST APIs and AI/ML-enabled features, influencing automation and decision-making in mission-critical systems. You'll work across multidisciplinary...

Qorvo ищет опытного разработчика для разработки Full Stack .NET решений и бэкенда в распределенной среде с использованием ASP.NET, Angular и SQL. Ваша задача — рефакторинг существующих систем, балансировка...

Jobtailor busca Ingeniero/a de Software con más de 5 años de experiencia para diseñar, desarrollar y mantener funcionalidades de producto end-to-end. La posición implica construir y evolucionar apps frontend con Vue.js, además de desarrollar y mantener servicios backend y APIs. Se valorará experiencia en AWS, bases de datos SQL, REST, IA/LLM y...

En VISEO buscamos ampliar nuestro Equipo de profesionales Microsoft. Si te gustan los nuevos retos, y quieres progresar en tu carrera profesional con un Equipo de expertos con tecnologías a la última, únete al equipo VISEO en proyectos internacionales.Tu Rol:Diseñar y desarrollar funcionalidades full-stack en proyectos con clientes multinacionales...

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...

Hiberus, una compañía tecnológica con sede en Madrid, busca un Senior FullStack Engineer con experiencia en Node.js y React para unirse a su equipo. Se valoran habilidades en microservicios, TypeScript y comunicación en inglés. Te unirás a un entorno colaborativo, con formación continua, horarios flexibles y un enfoque en innovación. Ofrecemos...

Solera Holdings, LLC. is seeking a Lead Full-Stack Developer in Madrid to drive development across .NET, Python and React/Angular. You will own backend and frontend work, implement robust CI/CD pipelines, and optimize apps for Linux and Windows. The role emphasizes collaboration with Product Management and analysis teams in an Agile setting. The ideal...

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 creativas,...

Project description Join a greenfield product initiative for a leading company in the fashion retail industry, where you will help design, build, and evolve a new digital solution from the ground up. Working closely with Spanish-speaking stakeholders, you will play a key role in defining the architecture, developing core product capabilities, and...

Our engineering team is growing, and we are looking for a Full-stack Software Engineer who will play a pivotal role in the development of our product and in speeding up the IT delivery growth in iptiQ. We promise you the freedom and space you need to be creative, show off your skills, and grow your expertise. This is an outstanding chance to become part of...

Buscamos un/a Full Stack Software Developer / Software Engineer, con orientación principalmente Backend, para incorporarse a un equipo encargado del desarrollo y mantenimiento de una aplicación innovadora. La persona seleccionada participará tanto en el desarrollo de nuevos módulos como en la evolución y mantenimiento de la aplicación, trabajando en...

Applus IDIADA is hiring senior software engineers to build AI-enabled automotive applications. You will own features end-to-end, spanning backend services written in Java/Spring Boot and Python, and modern frontends with Angular.The role emphasizes production-grade quality, cloud-native deployment, and collaboration in a fast-paced, multicultural team. Ideal...