Empleos de backend full stack engineer en Barcelona

Affirm, Inc. is hiring a Software Engineer II, Fullstack (Repayment UX) to join our remote-first team based in Spain. You will help design and ship backend systems and web apps using React or Vue, with optional React Native experience. The role supports a European-wide time zone and requires on-call rotation. The Repayment UX team works across product,...

Mondelēz International is seeking a Full Stack Data Platform Engineer to drive data pipelines and analytics for media data. You will design and implement scalable data solutions, partner with vendors, and deliver actionable insights through internal dashboards and AI-driven tools. The role emphasizes collaboration with cross-functional teams, cloud-based...

Senior Full Stack Engineer (React & Java) We build and operate Connect, a SaaS platform for the beauty & wellness industry that helps entrepreneurs run their businesses more effectively, built by Treatwell. Our web products are used daily by tens of thousands of people across 13 European countries. Our teams own their areas from initial idea and design...

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.

Our partner is looking for a Senior Software Engineer – C# / .NET based in Spain. Join a globally distributed software organization developing innovative solutions that help consumer brands optimize operations, recover revenue, and grow across major retail marketplaces. As a Senior Software Engineer, you will take end-to-end ownership of product...

En BIG School nos mueve un propósito claro: dotar de soberanía digital a quienes deciden liderar su propio crecimiento. Brindamos formaciones de alto impacto (BIG School) y vanguardia en Inteligencia Artificial (BIG IA). Desde nuestra fundación en **** por Romuald Fons, hemos pasado de la experimentación técnica al liderazgo de mercado, formando a...

GP DIGITAL busca un Data & AI / Full-Stack Software Engineer para desarrollar e integrar aplicaciones empresariales, diseñar pipelines de datos y gestionar transferencias de alto rendimiento con IBM Aspera. Se valorará experiencia en ML, IA generativa y NLP, trabajando con clientes y equipos para adaptar soluciones a sus necesidades.La posición ofrece...

Treatwell is seeking a Senior Full Stack Engineer (React & Java) to build and operate Connect, a SaaS platform for beauty and wellness across Europe. You will own features from database to UI, pair with cross-functional teams, and focus on testing, observability, and scalable architectures.The role emphasizes a DevOps mindset, data-driven decisions, and...

ALVIC, líder en soluciones tecnológicas para la gestión de energía, busca un Ingeniero/a de Desarrollo Software FullStack para unirse al equipo y participar en el diseño, construcción y evolución de soluciones innovadoras para clientes en España y LATAM. Formarás parte de un entorno multinacional, con tecnologías modernas, arquitectura escalable y...

Alpaca is hiring Senior Full-stack Engineers to design, build, and operate scalable distributed systems powering global investing. You’ll own projects end-to-end—from concept and coding to production deployment and maintenance—in a fast-moving, highly autonomous environment. Join teams like Trading Platform, Internal Tools, and Operations Automations;...

En Minsait, creemos en el talento que impulsa el cambio. Únete a nuestro equipo de desarrollo de software en sector Retail como Full Stack Developer (Java / React) con mayor foco Backend y sé parte de esta transformación, y trabajar en una modalidad de trabajo FULL REMOTE desde cualquier punto de España, o en un formato híbrido en A Coruña. Lo que...

Jobgether is seeking a Senior Software Engineer (Laravel | Next.js | PostgreSQL) based in Spain to join an established engineering team. You will work across the full stack, contributing to migrations, API integrations, and performance optimization for a large-scale web application. You will mentor peers, influence architecture, and collaborate with DevOps...

Senior Full Stack Engineer | B2B Contract | Fully Remote | €600/day We’re looking for a Senior Full Stack Engineer to join an exciting e-commerce company on a 6-month B2B contract, with a strong possibility of extension.This is a hands-on engineering role for someone who enjoys building scalable products, working across the stack, and making the most of...

Akens \ Nordburg sucht für ein deutsches IT-Unternehmen einen erfahrenen Fullstack Java Developer (m/w/d) zur Verstärkung des in Spanien ansässigen Entwicklungsteams. In dieser Position sind Sie an der Konzeption, Entwicklung und Weiterentwicklung moderner Webanwendungen beteiligt und arbeiten sowohl im Backend als auch im Frontend. Sie setzen auf...

Lexroom.ai is hiring a Senior Full Stack Engineer to join a four-to-five person squad. You will own technical decisions, ship features end-to-end, and collaborate with a product manager and designer. The stack spans Next.js/TypeScript on the frontend and Python with Django on the backend, with Postgres and vector stores. You will work across the stack,...

Eleva AI in Barcelona seeks a Founding Full Stack AI Product Engineer to design and ship end-to-end AI-powered experiences for venues. You'll own database, agent orchestration, APIs, integrations, admin console and deployment, delivering production-grade features used by live visitors. You'll work AI-native every day, build with Python, FastAPI, PostgreSQL,...

MaxIT Consulting – Max Corporate Group in Barcelona, Spain is seeking a Senior AI-First Full-Stack Engineer to lead the creation of an AI-powered workforce platform for healthcare. You will own the full product surface, collaborating with founders and cross-functional teams, and apply AI tools to accelerate development while maintaining rigorous...

Journi Limited, a London-based technology consultancy, partners with businesses to support their technology needs from strategy through delivery. We build bespoke software, drive digital transformation, team augmentation, and ongoing technical support to help clients scale quickly with experienced professionals.The role is a Full Stack Engineer with .NET 6+...

Indeep AI is seeking a versatile Full-Stack AI Engineer for our Barcelona office. You will work across the entire stack—from backend services and AI pipelines to the frontend and deployment infrastructure—supporting the CTO in delivering a coherent, reliable product. This hands-on role fits a generalist who thrives in a fast-paced startup. You’ll own...

Grupo Digital busca incorporar un Data & AI / Full-Stack Software Engineer para desarrollar e integrar aplicaciones empresariales. Se trabajará en pipelines de datos, integraciones entre plataformas y soluciones de transferencia de datos con IBM Aspera, aportando experiencia en IA generativa, NLP, LLM y RAG.Se valorará experiencia con Docker/OpenShift,...