Empleos de full stack engineer annotator en Barcelona

adesso Spain is seeking a curious, skilled Full‑stack Engineer with strong front‑end expertise to join an international engineering team in Spain. You will work on AI‑driven projects, collaborating with colleagues across Europe, while enjoying a flexible hybrid model that includes client site visits in Barcelona and occasional travel to Germany. The...

Albertine is seeking a seasoned full stack engineer to ship features across our TypeScript platform. You’ll shape API contracts, implement service and data work, and build the React UI members and agents actually use. Both halves must be solid in data choices and UX that feels finished. You’ll work across memberships, bookings, and billing with a focus...

Capitole keeps growing, and we want you to grow with us! We are seeking a Senior Full-Stack Developer (M/F) to join an international project. You will design, develop and maintain scalable full-stack applications using Java, Spring Boot, and Angular, contributing to architecture and DevOps practices. The role requires 3+ years of experience, strong...

Seeking a Full-Stack Engineer for an AI hiring startup to build an AI-native platform. Responsibilities include end-to-end feature development, integration architecture, and deployment automation. Requires Python/FastAPI, Next.Js, and AI/LLM proficiency.

TECDATA ENGINEERING en Barcelona busca un Full stack .net para migrar aplicaciones a un framework actualizado (.NET 8) y brindar soporte en testing. El candidato ideal deberá tener experiencia en desarrollo de aplicaciones web utilizando C#, ASP.NET MVC, .NET CORE y SQL Server.Es deseable que posea conocimientos en inteligencia artificial, herramientas de...

Location: Barcelona and surrounding area Working model: Hybrid – 4 days remote, 1 day per week in our Barcelona office Office: KPS Iberia, C/ Pau Claris 162–164, 08037 Barcelona About KPSKPS is a global consulting and technology company delivering digital transformation and e-commerce solutions for leading international clients. At KPS Iberia, you will...

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

Schwarz Digits creates the technological foundation for digital sovereignty in Europe. As the IT and digital division of the Schwarz Group, we develop and manage the IT infrastructures for the retail divisions Lidl and Kaufland, as well as Schwarz Production and PreZero. At the same time, we operate as an independent provider in the external market to...

Make your mark for patients 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...

Please submit your CV in English and indicate your level of English proficiency.Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is project-based, not permanent employment.What This Opportunity InvolvesYou'll create challenging coding test...

Lead engineer for an AI platform, guiding architecture and delivering features on web/mobile. Works with founding team, mentors engineers, and has 5+ years of experience. Remote role with competitive salary and equity.

Pillar is building a financial operating system for construction, combining AI, automation and modern software. We are seeking a product-minded Full Stack Engineer with backend depth to own features end to end, primarily focusing on backend while maintaining full product ownership. Location options include Milan or Barcelona, with a strong emphasis on...

This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for a Senior Full-Stack Product Engineer | Node.js, AI-Native (Boosters R&D) based in Spain. Join an early-stage product team building an innovative solution in the personal digital security space, where your engineering decisions...

Deeto is transforming how B2B companies grow by turning their customers into their most powerful growth engine. Our AI‑powered voice of customer (VoC) platform makes it effortless for companies to capture, organize, and activate authentic customer voices—delivering the right proof points at the right moment to accelerate deals and build trust at...

Super is seeking a talented Full Stack Engineer to join a fast-growing European team. You will own features end-to-end and collaborate with product managers, designers, and backend engineers to ship impactful updates with high performance and reliability. You will work with modern tech—TypeScript, React, Node.js, Vite, PNPM, AWS, Kubernetes—while...

As a Full Stack Engineer, you'll join a Cloud Engineering organization where engineers are encouraged to think beyond traditional frontend and backend boundaries. You'll have the opportunity to own meaningful features end to end, work across different layers of the stack, and contribute to products and infrastructure used at scale. We are also actively...

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...

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...

Role: Knowledge Graph (Full stack Engineer)Location: Barcelona, SpainMandatory skills: Exp. in delivering Semantic Knowledge Graph skills incl. AWS Neptune + Integrations Performance and use of MCP + Mulesoft API's + SLM & LLM fine tuning.The Full Stack Engineer is responsible for designing, building, and maintaining scalable data pipelines, knowledge graph,...

Schwarz Digits creates the technological foundation for digital sovereignty in Europe. As the IT and digital division of the Schwarz Group, we develop and manage the IT infrastructures for the retail divisions Lidl and Kaufland, as well as Schwarz Production and PreZero. At the same time, we operate as an independent provider in the external market to...