web3 fullstack engineer

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,...

E-Frontiers busca programadores fullstack con interés en Elixir para unirse a una empresa de producto. Ofrecen contrato indefinido y acompañamiento durante todo el proceso, con formación en Elixir si no tienes experiencia. Trabajarás en proyectos para e-commerce y un buscador inteligente basado en IA y NLP, con salario 35–45k EUR al año, horario...

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...

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...

We are looking for a Lead FullStack Engineer with strong backend expertise to help us build reliable, scalable, and high-quality products.You will lead a small engineering team consisting of 3 engineers and 2 QA specialists.This is a hands?on role requiring deep involvement in architecture, complex technical challenges, and production development.We expect...

We are looking for a Lead FullStack Engineer with strong backend expertise to help us build reliable, scalable, and high-quality products.You will lead a small engineering team consisting of 3 engineers and 2 QA specialists.This is a hands?on role requiring deep involvement in architecture, complex technical challenges, and production development.We expect...

We are looking for a Lead FullStack Engineer with strong backend expertise to help us build reliable, scalable, and high-quality products.You will lead a small engineering team consisting of 3 engineers and 2 QA specialists.This is a hands?on role requiring deep involvement in architecture, complex technical challenges, and production development.We expect...

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...

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.

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.

Desde E-Frontiers, buscamos un Full Stack Engineer para uno de nuestros clientes, una empresa líder en tecnología que desarrolla soluciones de búsqueda avanzadas para e-commerce, ayudando a las tiendas online a incrementar sus ventas. ¿Tienes experiencia en backend y ganas de aprender Elixir ? ¡Esta oportunidad es para ti! Sobre el puesto: Únete a un...

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.

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...

We are looking for a Lead FullStack Engineer with strong backend expertise to help us build reliable, scalable, and high-quality products.You will lead a small engineering team consisting of 3 engineers and 2 QA specialists.This is a hands?on role requiring deep involvement in architecture, complex technical challenges, and production development.We expect...