web3 fullstack engineer

Affinist, a remote-first company operating across Europe, seeks a Senior Full-Stack Software Engineer for the Repayments UX team. You will own quarterly goals, guide engineers, and drive scalable features across web and mobile platforms. The role requires 4+ years of experience with React Native and web frameworks, plus backend skills in Python or Kotlin....

Descripción de la vacante Remoto: Trabajo híbridoSenior Fullstack Engineer / Tech Lead -- Plataforma IoTReferencia: #32026Localización: Barcelona Te motiva liderar la evolución técnica de una plataforma propia que está a punto de desplegarse en varios países? Quieres tener autonomía real, impacto directo y la posibilidad de marcar estándares...

Senior Fullstack Engineer – Madrid/Barcelona (Remote) Job role: Senior Fullstack Software Engineer Location: Madrid/Barcelona (Remote) Languages required: English (C1) Minimum experience: 5 to 7 years Rate: 260-285€/day Responsibilities We are seeking a Senior Fullstack Software Engineer with strong expertise in Python and solid experience in JavaScript...

Twtspain is seeking a Senior Fullstack Software Engineer to join our Madrid/Barcelona team with remote options. You will lead backend architecture using Python and FastAPI, and contribute to frontend with ReactJS, TypeScript, Vite and Tailwind. You will drive high‑performance, scalable systems, work with Redis, PostgreSQL, MongoDB, Docker, Kubernetes,...

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...

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...

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 full-stack...

Starting with fast, affordable remittances powered by AI and crypto rails, we are expanding into credit, savings, and wallet services to support the complete immigrant financial journey. We are a hyper-growth Series C company, backed by over $300 million in funding from top-tier global investors, including Andreessen Horowitz, QED, Castle Island, Switch...

Schwarz Digits creates the technological foundation for digital sovereignty in Europe. Si desea conocer los requisitos para este puesto, siga leyendo para obtener toda la información relevante. 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...

About the Role Our client, an innovative tech startup focused on educational platforms, is seeking a talented Senior Full Stack Developer proficient in Node.js and React to join their remote team. This role is ideal for a seasoned developer who thrives on building scalable, user-friendly web applications from end to end. You will be responsible for designing...

Schwarz Digits creates the technological foundation for digital sovereignty in Europe. Si desea conocer los requisitos para este puesto, siga leyendo para obtener toda la información relevante. 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...

Schwarz Digits creates the technological foundation for digital sovereignty in Europe. Si desea conocer los requisitos para este puesto, siga leyendo para obtener toda la información relevante. 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...

Our agentic platform helps finance and operations teams worldwide remove manual work from their core business processes, so work runs end-to-end with greater control and significant productivity gains. Today, over 550 enterprise customers use BLP across 1,300+ deployed projects. The Platform Team owns what all of them are built on: shared services and APIs,...

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...

About the Project & Team 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 raised venture funding to continue building developer tools that must exist but don't yet. We're a small,...

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...

Tether is hiring a Fullstack Engineer to help QVAC application teams build, review, test, and deliver robust software. You'll focus on desktop and mobile apps, AI harness, and skills packages, while creating developer tools and integrating AI agents into engineering workflows. You will own parts of the tooling roadmap, work with engineers to implement...

Schwarz Digits creates the technological foundation for digital sovereignty in Europe. Si desea conocer los requisitos para este puesto, siga leyendo para obtener toda la información relevante. 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...