Empleos de senior full-stack engineer api en Barcelona

NineTwoThree AI Studio is a remote-first product design, engineering, and marketing studio delivering AI-powered web and mobile apps to global brands. We seek senior engineers who lead projects, architect scalable AI solutions, and mentor teams to deliver high-quality results.Join a fast-moving, high-talent team with strong leadership, clear processes, and...

Leyton in Barcelona seeks a Full-Stack Engineer to join a growing team building AI-native software for professional services.You will own end-to-end delivery, shaping architecture and quality across multiple products.Expect to collaborate with product owners, navigate varied domains, and contribute to production-grade systems used across Europe.You will work...

Somos Plexus Tech. Una compañía tecnológica especializada en servicios y productos IT, fundada en el talento y las capacidades de nuestra gente, más de 5000 profesionales desarrollando tecnología con alma. Buscamos un/a Senior Full Stack Developer con al menos 5 años de experiencia en desarrollo de aplicaciones web, con sólidos conocimientos de...

This job is with Allianz Commercial, an inclusive employer and a member of myGwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly.About the JobAs an Expert Full Stack Developer at Allianz Technology, you will be responsible for designing, developing, and maintaining comprehensive web...

WHY JOIN US Asegúrese de leer la descripción completa a continuación y, si confía en que cumple todos los requisitos, envíe su solicitud de inmediato.If you're looking for a place to grow, make an impact, and work with people who care, we'd love to meet you! ABOUT THE ROLE We are looking for a Backend Software Engineer to build and maintain the...

FuncionesFCC Medio Ambiente es la empresa líder del sector medioambiental en España, referente en la gestión de servicios públicos de recogida de residuos, mantenimiento y conservación de zonas verdes, limpieza viaria, etc.Presentes en más de 5.300 municipios en 12 países, mejoramos la calidad de vida de más de 65 millones de personas en todo el...

Elastic is seeking a Senior Java Developer to join the Elasticsearch team and drive the Inference API. You will build and maintain the plugin framework and REST API, collaborating with the inference team and the Kibana team to deliver scalable, reliable software across Elastic's cloud and hosted environments. Ideal candidates bring 5+ years of production...

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...

HCL Technologies Limited is seeking a Backend Developer to strengthen our Spain-based team. You will design and implement backend services, compose APIs, and contribute to CI/CD using Azure DevOps. Proficiency in Maven, JPA/JDBC, and databases is expected, with knowledge of OpenShift and scalable architectures. You should be comfortable with distributed...

Slash Mobility Slash Mobility es una firma boutique tecnológica que está construyendo algo diferente a la consultoría tradicional. No queremos ser una fábrica de horas ni una consultora masiva. Ayudamos a grandes organizaciones a diseñar y construir productos digitales y plataformas tecnológicas que realmente mueven su negocio. No nos limitamos a...

SlashMobilitySlashMobility es una firma boutique tecnológica que está construyendo algo diferente a la consultoría tradicional. No queremos ser una fábrica de horas ni una consultora masiva. Estamos creando una casa para la Tecno Élite: profesionales que quieren trabajar con grandes corporaciones en retos reales, con equipos pequeños, muy buenos y con...

Slash Mobility Slash Mobility es una firma boutique tecnológica que está construyendo algo diferente a la consultoría tradicional. No queremos ser una fábrica de horas ni una consultora masiva. Ayudamos a grandes organizaciones a diseñar y construir productos digitales y plataformas tecnológicas que realmente mueven su negocio. No nos limitamos a...

SlashMobilitySlashMobility es una firma boutique tecnológica que está construyendo algo diferente a la consultoría tradicional. No queremos ser una fábrica de horas ni una consultora masiva. Estamos creando una casa para la Tecno Élite: profesionales que quieren trabajar con grandes corporaciones en retos reales, con equipos pequeños, muy buenos y con...

Remote Europe / LATAM | $100K–$120K + equity Most customer service chatbots can answer simple questions. As soon as you need a refund, return or help with a missing order, you usually end up speaking to a human. I'm hiring Senior Full Stack Engineers for a Series A company building AI agents that can actually resolve those problems. Their agents connect to...

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

ОписаниеQorvo supplies innovative semiconductor solutions for consumer electronics, smart home and IoT, automotive, electric vehicles, network infrastructure, healthcare, and aerospace and defense. The company combines product and technology leadership with systems-level expertise and global manufacturing scale to address complex technical challenges...

N-iX is a global software development service company that helps businesses across the globe create next-generation software products. Founded in 2002, we unite 2,400+ tech-savvy professionals across 40+ countries, working on impactful projects for industry leaders and Fortune 500 companies. Our expertise spans cloud, data, AI/ML, embedded software, IoT, and...

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...

Barcelona Supercomputing Center seeks a Mid-Level Full Stack Developer (.NET) to maintain and enhance an internal time-tracking platform. You will implement features with .NET Core / .NET 6+ on the backend and Razor Views on the frontend, ensuring robust REST API integration and SQL database usage.You will collaborate on architecture, uphold code quality,...

Netenders, based in Barcelona, seeks a Senior Full Stack Developer (Freelance) to collaborate with the in-house team on long-term e-commerce CMS projects. You will architect scalable Rails backends and React frontends, focusing on supplier integrations and high-volume data flows. You will work autonomously in a freelance capacity, with flexible remote...