Empleos de web3 fullstack engineer en Barcelona

We are TecAlliance — founded by more than 30 automotive aftermarket companies as a neutral Data‑as‑a‑Service market connector, serving as the neutral data terrain that interconnects them. With over 1,000 employees worldwide and customers in 140 countries, we enable the market — we never compete with it.Join us in this full-time role, working 40...

¿Fullstack, Platform Engineering, Cloud y Developer Experience en una misma posición? Desde Q-tech estamos colaborando con una gran compañía tecnológica internacional para incorporar un/a Platform Fullstack Engineer a su hub tecnológico de Barcelona. Pero ojo: no buscamos simplemente a alguien que haga frontend + backend. Buscamos un perfil...

Embrace DevOps, taking responsibility for your team's services from requirement analysis to operation. Make architectural decisions with your team to ensure high performance, robustness, and maintainability of the application, especially during the transition from on-premise to the cloud. Your ProfileExperience in front-end technologies such as HTML5, CSS3,...

Join one of Southern Europe's fastest-growing startups Confidential company is a Barcelona-based startup and one of Southern Europe's fastest-growing companies ranked #3 in the Sifted 100: Southern Europe ****, and we're just getting started.We're building the AI-native GTM platform for modern B2B teams, combining prospecting, enrichment, intent signals, AI...

About UsPerk (formerly TravelPerk) is the intelligent platform for travel and spend management. Built to tackle the time-consuming, manual work that gets in the way of real work, our tools automate everything from travel bookings to expenses, invoice processing, and more. By eliminating this shadow work that wastes hours, erodes morale, and saps innovation,...

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...

Join one of Southern Europe's fastest-growing startups Enginy is a Barcelona-based startup and one of Southern Europe's fastest-growing companies ranked #3 in the Sifted 100: Southern Europe 2026, and we're just getting started. We're building the AI-native GTM platform for modern B2B teams, combining prospecting, enrichment, intent signals, AI research...

Meet SienaSiena is the Agent of Record for CX, built for consumer brands like Spanx, FIGS, Brooklinen, and Grüns.Meet SienaSiena is the Agent of Record for CX, built for consumer brands like Spanx, FIGS, Brooklinen, and Grüns.It runs as a connected multi-agent stack on top of a shared intelligence layer: agents that sell, support, listen, handle social and...

At Viaplay Group, we entertain millions of people every day through our streaming services, radio networks, and TV channels. We believe in the power of content not just as a way of telling stories and touching lives, but also expanding worlds.We’re looking for the best people to join us on our journey. Right now, we’re searching for a Senior Fullstack...

We develop and implement smart and efficient IT solutions to deliver the best experience. Retail sector. Take advantage of the opportunities to progress your career at the Barcelona location. Se anima a todos los posibles solicitantes a que se desplacen y lean la descripción completa del puesto antes de presentar su candidatura. Fullstack Mobile Engineer...

Join one of Southern Europe's fastest-growing startups Enginy is a Barcelona-based startup and one of Southern Europe's fastest-growing companies ranked #3 in the Sifted 100: Southern Europe 2026, and we're just getting started. We're building the AI-native GTM platform for modern B2B teams, combining prospecting, enrichment, intent signals, AI research and...

Join one of Southern Europe's fastest-growing startups Enginy is a Barcelona-based startup and one of Southern Europe's fastest-growing companies ranked #3 in the Sifted 100: We're building the AI-native GTM platform for modern B2B teams, combining prospecting, enrichment, intent signals, AI research and outreach into one product so sales teams can focus on...

AstraZeneca plc in Barcelona is seeking an experienced software engineer to deliver AI-native, full-stack software for clinical trials. You will own features end-to-end, writing production code for backend and frontend, and integrating AI capabilities directly into the product suite. You will also help define how engineering teams build with AI, set...

At Visium, we help leading enterprises define their AI strategy, deliver large-scale data transformations, and embed AI across operations to make organizations truly future-proof. A state-of-the‐art Agentic AI Platform designed for the Life Sciences industry, where knowledge, regulation, and innovation intersect. Born from Visium's deep enterprise AI...

At Visium, we help leading enterprises define their AI strategy, deliver large-scale data transformations, and embed AI across operations to make organizations truly future-proof. A state-of-the‐art Agentic AI Platform designed for the Life Sciences industry, where knowledge, regulation, and innovation intersect. Born from Visium's deep enterprise AI...

Leyton in Barcelona is seeking a Full-Stack Product Engineer to own a product end to end — from users and roadmap to build and release — with no middleman between you and the people who use it. You’ll join Mainloop Barcelona, an AI-native engineering team inside an established group, built from scratch this year and groudworking a future of...

Leyton in Barcelona is seeking a Full-Stack Product Engineer to own a product end to end — from users and roadmap to build and release — with no middleman between you and the people who use it. You'll join Mainloop Barcelona, an AI-native engineering team inside an established group, built from scratch this year and groudworking a future of...

Referencia: JN- Publicado el: 2026-07-02Ubicación: Barcelona, España, ESTipo de contrato: Jornada completaEmpresa: Michael PageSector: TecnologíaSub Sector: ProgramadorIndustria: Technology & TelecomsLocalización: BarcelonaTipo de Contracto: PermanenteNombre del consultor: Pancho MaluendaModalidad de trabajo: Remoto / híbridoEmpresa de producto...

At Equitable Earth, we're on a mission to help protect and restore 1% of the natural world by 2030. We’ve built a rigorous, technology-enabled standard to certify conservation and restoration projects, ensuring they deliver lasting impact: strengthening livelihoods, safeguarding biodiversity, and supporting a stable climate. We're a diverse, mission-driven...

Built to tackle the time-consuming, manual work that gets in the way of real work, our tools automate everything from travel bookings to expenses, invoice processing, and more. By eliminating this shadow work that wastes hours, erodes morale, and saps innovation, we’re on a mission to power real work, with real impact. Founded in 2015, Perk has grown into...