Empleos de web3 fullstack engineer en Barcelona

Startup Talents in Barcelona is seeking a Senior Front End Engineer to join a wallet-as-a-service platform for multi-chain gaming. You will help games interact with on-chain assets and accelerate launches. You will build tools for developers, sample integrations, SDKs, and web3 workflows.Collaborate with frontend teams and game engines like UE, Unity, 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: 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...

ABOUT CODEWAY Codeway builds category-leading consumer AI apps on mobile and web, at global scale. 600M+ downloads. 60+ apps. 400+ builders across Barcelona and İstanbul. Completely bootstrapped. No board. Profitable since year two. Small teams move faster than big ones. But they need big resources to win at scale. Nobody starts from zero. The problem...

¿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 con...

At Allianz Technology, we are shaping the future of digital solutions through innovation, collaboration, and AI-driven development. We are looking for an Expert Full Stack Developer who is passionate about building scalable, high-quality applications and leveraging modern technologies to solve real business challenges. In this role, you will work across...

Barcelona, Spain | Senior Engineering Opportunity Max IT Consulting – Max Corporate Group is looking for aSenior Full-Stack Engineer – AI-Native Applications to join a fast-growing European technology company building an AI-powered workforce platform for the healthcare sector. The company operates a multi-sided marketplace used by hundreds of hospitals...

DescriptionOur background🥳Our team is composed of fun people from all over the world, coming from different paths. We don’t require a BSc, Masters or any level of education or experience from a particular size of the company. For us, passion for building high-quality products and making an impact on the electric transition is way more valuable and you...

Overview As a Platform Engineer, you drive scalable, reliable platform solutions that empower development teams. You translate business needs into robust frontend, backend, and infrastructural architectures while enabling self-service and strong Developer Experience. You balance agility and security to reduce friction and accelerate delivery across...

Full Stack Engineer (Senior/Lead) 5000 company that creates award‐winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in application development and AI/ML, and our people‐first culture has earned us multiple Best Place to Work awards. As a Full Stack Senior/Lead Engineer at AgileEngine,...

About our client Our client builds a leading digital identity and fraud prevention platform used by banks, fintech companies, online marketplaces, and other regulated businesses worldwide. Their products combine biometric identity verification, document and image processing, and advanced fraud detection to help customers balance frictionless digital...

We Make Voice AI Work. We ship production-ready agents that automate real sales and operations.¿Está considerando presentar su candidatura para este trabajo? Compruebe todos los detalles en esta descripción del puesto y luego haga clic en "Solicitar". builds and operates custom AI voice agents that automate high-volume, repeatable workflows across...

Overview As a Senior Java Full Stack Engineer, you will join a greenfield fashion retail project to design, build, and evolve a new digital product from scratch. You will define architecture, implement core capabilities, and deliver an MVP that drives real business value, collaborating with Spanish-speaking stakeholders. You'll work hands-on across...

At Workfully, we’re building the first global recruitment marketplace where independent recruiters can grow, engage, and monetize their talent networks — connecting them to meaningful opportunities at innovative companies worldwide.¡Inscríbase sin demora! Se espera un gran volumen de solicitantes para el puesto que se detalla a continuación, no espere...

Q-tech busca un Platform Fullstack Engineer para nuestro hub tecnológico en Barcelona. Buscamos quien combine frontend, backend e infraestructura para construir herramientas y APIs auto-servicio que empoderen a otros equipos de desarrollo.Se valorará capacidad hands-on y pragmática, con foco en productividad y reducción de fricción. Se trabajará en un...

Wizeline, a global AI-native technology solutions provider, develops cutting-edge, AI-powered digital products and platforms. We partner with clients to leverage data and AI, accelerating market entry and driving business transformation. As a global community of innovators, we foster a culture of growth, collaboration, and impact.Asegúrese de enviar su...

We are: Wizeline, a global AI-native technology solutions provider, develops cutting-edge, AI-powered digital products and platforms. We partner with clients to leverage data and AI, accelerating market entry and driving business transformation. As a global community of innovators, we foster a culture of growth, collaboration, and impact. With the right...

ERNI is seeking a senior software professional to lead the evolution of an enterprise-wide data governance platform in a hybrid model in Barcelona. You will work with Python and Angular on cloud-native solutions, driving metadata management, data lineage, governance workflows and data product lifecycle management across the organization. xghoner No espere a...

K-LAGAN in Barcelona is seeking a talented Fullstack Developer (Java + React) to join our Software Engineering team. You will build end-to-end applications, delivering interactive front-ends and robust back-end services in a hybrid work setting.You will work with Java, Spring Boot, React, Docker and Kubernetes, collaborating with international teams, and...

MediaMarktSaturn Technology in Barcelona seeks an experienced Fullstack Engineer to join the Technology Hub. You’ll own front and back features with TS/Node.js, React, GraphQL, and MongoDB, building scalable backend orchestration and shared infrastructure across product teams. You’ll work with GCP and Terraform, improve CI/CD with GitHub Actions, and...

Exoticca Travel UK Limited in Barcelona is seeking a Senior Back-end Software Engineer. This position involves building systems for travel product configuration and ensuring operational excellence.Compruebe a continuación si tiene lo necesario para esta oportunidad y, si es así, envíe su solicitud lo antes posible.The ideal candidate has strong...