Empleos de web3 fullstack engineer en Madrid

Build the Security Infrastructure Powering Global Investing Have you built and operated scalable backend services while delivering modern frontend applications? Do you enjoy solving engineering challenges around security, authentication, high availability and distributed systems? Have you worked on systems serving millions of users, handling thousands of...

Build the Security Infrastructure Powering Global Investing Have you built and operated scalable backend services while delivering modern frontend applications? Do you enjoy solving engineering challenges around security, authentication, high availability and distributed systems? Have you worked on systems serving millions of users, handling thousands of...

Build the Security Infrastructure Powering Global Investing Have you built and operated scalable backend services while delivering modern frontend applications?Do you enjoy solving engineering challenges around security, authentication, high availability and distributed systems?Have you worked on systems serving millions of users, handling thousands of...

We are knowmad mood!Somos una compañía líder en transformación digital, en constante evolución y a la vanguardia de la tecnología. Nacimos para provocar un cambio real a través de la innovación y el desarrollo sostenible, con la misión de aportar valor a los clientes e impulsar nuestro talento.Formado por más de 3.000 personas creativas, digitales...

At Capitole, we keep growing and we want to do it with you! We are looking for a Senior Fullstack Engineer with a strong frontend mindset to join an international project. You will contribute to the evolution of the central platform used by developers across the organization, working on modern frontend experiences, Backstage integrations, and cloud-native...

Senior Software Engineer, Fullstack (Repayments UX) Remote Spain At Affinist we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. The Repayment UX Engineering team is growing, and we're looking for a Senior Full-Stack Software Engineer. ...

Our mission is to connect and optimize the world’s commerce. That means the whole world. So we’re determined to nurture our culture of meritocracy where everyone can thrive, no matter what we look like, where we’re from, how we grew up, whom we love, the nature of our faith, or how our bodies or minds work. We’re committed to achieving equity in...

Otto Group Solution Provider Spain Sl 1 in Madrid invites a software developer to contribute across the full product lifecycle within a collaborative, team-oriented environment. The role emphasizes ownership and proactive participation in delivering high-quality software solutions. We seek strong Java expertise (Spring Boot and API services), Kafka...

Moonfire is a small, fully remote team of senior engineers building Lingo.dev tools used by developers worldwide. You will design, develop, and scale web applications, open source tooling, and robust APIs with a focus on performance and UX.We value CS craft, remote collaboration, and ownership of features end-to-end. You'll work across frontend, backend, and...

Senior Software Engineer - IKEA for Business, Group Digital Join to apply for the Senior Software Engineer - IKEA for Business, Group Digital role at IKEA . WHY YOU SHOULD JOIN IKEA Hej, we are David, Álvaro and Germán. We lead the team as Engineering Managers at IKEA for Business and we want you to join us! We care deeply about solving...

Trabajamos con todo tipo de empresas, desde pymes y startups como Embat o Payflow hasta corporaciones como LVMH o Gant.Nuestra misión es clara: ayudar a fundadores y CEOs a hacer sus empresas más rentables y escalables, ocupándose de todo lo profesional, fiscal, laboral, contable y legal, para que ellos puedan competir y brillar.Lo hacemos combinando el...

T-Systems is part of the Deutsche Telekom Group, with around 30.000 employees worldwide.We create technology with purpose to generate a positive impact on society. We are looking for curious talent, eager to learn, take on challenges, and contribute ideas that transform our customers' experience. We trust people: we offer autonomy, continuous support, and a...

Build the Security Infrastructure Powering Global Investing Have you built and operated scalable backend services while delivering modern frontend applications? Do you enjoy solving engineering challenges around security, authentication, high availability and distributed systems? Have you worked on systems serving millions of users, handling thousands of...

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...

Desarrollador/a Senior Full Stack Web / Mobile Buscamos un/a desarrollador/a senior full stack web / mobile con, al menos 5 años de experiencia. ¡Únete a nuestro equipo! Horario flexible, tu marcas tus tiempos de entrada y salida. ~ Teletrabajo flexible, sujeto a necesidades del proyecto. ~23 días laborables de vacaciones + 2 días libres en 2025....

NN Digital Hub is a subsidiary company of NN Group located in Madrid, Spain. We deliver IT services and solutions for the different international Business Units.FullStack EngineerYour Impact as FullStack Engineer: What are you going to doAs a FullStack Engineer, you will have plenty of opportunities to help us take the needed steps to modernise our frontend...

Alpaca is seeking a seasoned Fullstack Engineer to join the Platform Authentication team and help build secure access to Alpaca’s products and APIs. You will contribute to authentication, authorization and identity-provider infrastructure while modernizing the platform. You’ll work on multi-region services, frontend and backend features, and developer...

SEIDOR busca un/a desarrollador/a Full Stack con 2–3 años de experiencia para trabajar en proyectos de aplicaciones web, abarcando frontend y backend. Se valorará capacidad para contextos internacionales y trabajo en entornos ágiles, con énfasis en HTML5, CSS3, JavaScript, React y Node.js. Trabajarás en un equipo distribuido, con metodología...

About the Project & Team We started Lingo.dev at a hackathon and, after winning the best dev tool award, we just kept building. It evolved into a developer-loved toolkit with hundreds of active users, 7,000 weekly CLI runs, 5,000 GitHub stars, and over 100 million translated words. We've graduated from the world's best tech accelerator (Y Combinator) and...

M Métrica Consulting, una consultora de negocio e integración de sistemas, busca un Desarrollador Fullstack Senior con más de 4 años de experiencia en backend con Java/Spring y frontend en React. Diseñará y mantendrá servicios, desarrollará funcionalidades end-to-end y trabajará con Kafka, analizando código heredado y asegurando despliegues...