web3 fullstack engineer

Build the Infrastructure Powering Global Investing Can you design, build, and operate scalable distributed systems whilst still shipping customer-facing products? Have you built software that serves millions of users, processes large volumes of data, or supports mission-critical business operations? Do you enjoy solving complex engineering challenges across...

About Tuyo exists to help people progress in their financial life. It is a self-custodial crypto money app, bringing together wallets, stablecoins, banking rails and cards while customers control their keys and funds. We are a small, product-minded team serving thousands of customers in more than 130 countries. We are venture-backed, have raised our seed...

Parser Limited is seeking a Senior Fullstack Engineer in Spain with strong backend/API experience and a focus on microservices, security, and performance. You will collaborate with frontend teams to deliver robust, scalable applications and work across cloud platforms, containerization, and modern tooling. The role requires 8+ years in backend development...

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...

We develop and implement smart and efficient IT solutions to deliver the best experience. Retail sector. Take advantage of the opportunities to progress your career at the Barcelona location. Fullstack Mobile Engineer The team We are the One App team, and we want to take care of a retail app key cross modules to improve the development experience of the...

Responsibilities ~ be able to handle a technical analysis and the associated implementation. Competences Java senior (5 years experience at minimum) Knowledge of APIs Rest and knowledge of Knowledge of Springboot and SpringBatch Knowledge of MQ Series/TIBCO Knowledge of IT security & cryptograhy Knowledge of Swift messages Jasper Reports skills will be...

We develop and implement smart and efficient IT solutions to deliver the best experience. Retail sector. Take advantage of the opportunities to progress your career at the Barcelona location. Se anima a todos los posibles solicitantes a que se desplacen y lean la descripción completa del puesto antes de presentar su candidatura. Fullstack Mobile Engineer...

We develop and implement smart and efficient IT solutions to deliver the best experience. Retail sector. Take advantage of the opportunities to progress your career at the Barcelona location.Se anima a todos los posibles solicitantes a que se desplacen y lean la descripción completa del puesto antes de presentar su candidatura.Fullstack Mobile Engineer The...

We develop and implement smart and efficient IT solutions to deliver the best experience. Retail sector. Take advantage of the opportunities to progress your career at the Barcelona location. Fullstack Mobile Engineer The team We are the One App team, and we want to take care of a retail app key cross modules to improve the development experience of the...

About UsPerk (formerly TravelPerk) is the intelligent platform for travel and spend management. Si los siguientes requisitos del puesto y la experiencia coinciden con sus habilidades, por favor, asegúrese de enviar su solicitud sin demora. Built to tackle the time-consuming, manual work that gets in the way of real work, our tools automate everything...

Build the Infrastructure Powering Global InvestingCan you design, build, and operate scalable distributed systems whilst still shipping customer-facing products? Have you built software that serves millions of users, processes large volumes of data, or supports mission-critical business operations? Do you enjoy solving complex engineering challenges across...

AtWorkfully , 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.Our technology is designed to make recruiting more transparent, fair, and scalable. We’re a profitable early-stage company...

Referencia: JN- Publicado el: 2026-07-02Ubicación: Barcelona, España, ESTipo de contrato: Jornada completaEmpresa: Michael PageSector: TecnologíaSub Sector: ProgramadorIndustria: Technology & TelecomsLocalización: BarcelonaTipo de Contracto: PermanenteNombre del consultor: Pancho MaluendaModalidad de trabajo: Remoto / híbridoEmpresa de producto...

Leyton in Barcelona is seeking a Full-Stack Product Engineer to own a product end to end — from users and roadmap to build and release — with no middleman between you and the people who use it. You'll join Mainloop Barcelona, an AI-native engineering team inside an established group, built from scratch this year and groudworking a future of...

We develop and implement smart and efficient IT solutions to deliver the best experience. Retail sector. Take advantage of the opportunities to progress your career at the Barcelona location. Se anima a todos los posibles solicitantes a que se desplacen y lean la descripción completa del puesto antes de presentar su candidatura. Fullstack Mobile Engineer...

Build the Infrastructure Powering Global InvestingCan you design, build, and operate scalable distributed systems whilst still shipping customer-facing products? Have you built software that serves millions of users, processes large volumes of data, or supports mission-critical business operations? Do you enjoy solving complex engineering challenges across...

Build the Security Infrastructure Powering Global InvestingHave 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...

Job description Context Collective.work is building the next generation of AI-powered recruitment.The company supports over 20,000 recruiters and headhunters across France, Belgium, Spain, and EMEA, and is expanding its product and distribution in the UK.The platform combines a suite of AI agents — from sourcing and outreach to job posting and ATS...

Parser Limited is seeking a Senior Fullstack Engineer in Spain with strong backend/API experience and a focus on microservices, security, and performance. You will collaborate with frontend teams to deliver robust, scalable applications and work across cloud platforms, containerization, and modern tooling. The role requires 8+ years in backend development...

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 financial...