web3 fullstack engineer

Senior React Full Stack Engineer We are looking for a Senior React Full Stack Engineer with strong experience building scalable web applications using React on the frontend and Node.js on the backend. The ideal candidate should be comfortable working across the full development lifecycle, from designing user interfaces to building APIs, integrating...

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...

Capitole is growing fast and seeking a Software Engineer in Barcelona to join a multidisciplinary team building Drives Configuration and Programming software for a global leader in industrial automation. You will own features end-to-end, design solutions, review code, and collaborate with teams across Japan, the US and the Netherlands to deliver...

zooplus is seeking a Senior Frontend Platform Engineer in Madrid to shape the shared frontend platform powering customer experiences across Europe. You'll design and evolve platform capabilities, improve developer workflows, and collaborate with engineers across teams to deliver scalable frontend solutions used by millions of customers. Hybrid work 60/40...

Appfire is hiring a software engineer to build and improve Jira-related products with a focus on JMWE/JMCF, collaborating across a cross-functional team. You’ll influence product direction, design scalable cloud apps, and mentor teammates in a transparent environment. The role emphasizes performance, UX improvements, and exploring AI capabilities, with a...

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...

A German Sustainable Tech Unicorn that is redefining how global corporations handle transparency. Backed by a €130M Series C investment, our client has built a proprietary, serverless cloud infrastructure to ensure human rights and ecological responsibility across global supply chains. This is your chance to join a high-growth environment where...

Capitole is hiring a Fullstack Engineer (Frontend-Oriented) with 4+ years of experience to drive frontend components and Backstage integrations within the joint team. You will contribute to the portal's technical advancement and collaborate across ARTs and organizational units. The role emphasizes React development, REST APIs, and enterprise IT experience,...

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,...

A tech company in Madrid is seeking a talented Software Engineer to join their Engineering team. You'll design and develop features for their next-generation AI tool, ensuring scalability and security. The ideal candidate has 5+ years of experience with Node.js and TypeScript, and should possess strong technical communication skills. This role offers...

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...

Software Engineer II, Fullstack (Repayment UX) Remote Spain At affirm, 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 Full-Stack Software Engineer. We're a...

Affirm, Inc. is seeking a Software Engineer II, Fullstack (Repayment UX) to join a Europe-based team focused on reliable, scalable repayment experiences. The role operates from Spain with a remote-first policy, collaborating across product, design and analytics. Expect on-call rotations and opportunities to impact millions of users with high-scale...

Capitole is seeking 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, focusing on modern frontend experiences, Backstage integrations, and cloud-native solutions. You will develop React-based UI components,...

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,...

Seqera is seeking a Fullstack Software Engineer to join the Platform team. You’ll work across the stack on the Seqera Platform, building APIs, data models, cloud integrations, and frontend features in Java, Groovy, Angular and Micronaut. The team is small and empowered; you’ll own an area end to end, shape architecture, write tests, and collaborate...

EnN-iXnos encontramos en la búsqueda de un/aSenior . NET FullStack Engineerpara sumarse a nuestro equipo de Desarrollo de Software e integrarse a una de nuestras células Scrum. Cada equipo ágil está conformado por roles de liderazgo técnico, desarrollo, arquitectura, QA, producto y gestión de proyectos.Buscamos un perfilSenior Full Stackcon sólido...

Braintrust is seeking a QA/quality engineer to drive hands-on testing across web and mobile apps, with a strong focus on Web3 wallet interactions and on‐chain vs off‐chain behavior. You will design test cases, run regression sweeps, and report issues with crisp repro steps. Collaboration across US/Europe/India is essential, with experience in Linear or...

Seeking a Senior Full-Stack Engineer for a health tech scale-up in Berlin to build and scale their core platform. Responsibilities include hands-on development, technical problem-solving, and end-to-end project management.

Se busca Ingeniero Full Stack con al menos 5 años de experiencia backend para aprender Elixir. El puesto implica diseñar, desarrollar y mantener sistemas, colaborar en soluciones escalables y crecer en el uso de Elixir. Se ofrece contrato indefinido, trabajo híbrido/remoto, formación y horario flexible.