Empleos de backend engineer nodejs en Barcelona

Who We Are WhereTo is a business travel startup from San Francisco that evolved into an agile development and design studio within the Flight Centre family. We build travel solutions used by some of the largest companies on the planet - we have just one goal: making business travel better for everybody. WhereTo provides an AI-powered travel platform for...

REVER is a Barcelona based startup backed by Y‑Combinator. REVER's mission is very ambitious: change the way people buy by giving superpowers to shoppers. We are now obsessed on drastically improving the return experience both for the shopper and the e‑commerce. The challenge is massive: we want to change a $2.5 Trillion industry. For that we have a...

Location: Come and join us in Barcelona! We are looking for a talented and motivated Backend Engineer (m/f/d) for our Driver Engagement Team. As part of a highly skilled, cross-functional team comprising Mobile Engineers, Backend Engineers, a Product Manager, a Product Designer, a Data Analyst, and an Engineering Manager, you will help shape the future of...

Build the infrastructure that moves money. Ledgers, payment integrations, and APIs that power fintech businesses.About the roleWe're building the platform that lets anyone launch a fintech business. That means reliable ledgers, integrations with stablecoin infrastructure (USDC, Bridge), and APIs developers love to use.What you'll doDesign and build backend...

Flanks is looking for a Backend Engineer to design and maintain the data pipelines and backend services powering their Open Wealth Platform. €35,000 - €50,000 gross/year Barcelona (Hybrid, office near Sants Estació / Plaça Espanya) Health insurance, 50% subsidised digital canteen, yearly training budget, birthday day off A little bit about...

Backend Engineer – Python / FastAPI / LLM Pipelines | 100% Remote We are looking for an experienced Backend Engineer to join an international technology project focused on building an intelligent platform that combines Python backend development, APIs, LLM-based agentic workflows and large-scale data processing . Location: Spain Work model: 100%...

About Air AppsAt Air Apps, we believe in thinking bigger and moving faster. We’re a family-founded company on a mission to create the world’s first AI-powered Personal & Entrepreneurial Resource Planner (PRP), and we need your passion and ambition to help us change how people plan, work, and live. Born in Lisbon, Portugal in 2018 and now with offices in...

About Air AppsAt Air Apps, we believe in thinking bigger - and moving faster. We’re a family-founded company on a mission to create the world’s first AI-powered Personal & Entrepreneurial Resource Planner (PRP), and we need your passion and ambition to help us change how people plan, work, and live. Born in Lisbon, Portugal, in 2018 - and now with...

  Who We Are WhereTo is a business travel startup from San Francisco that evolved into an agile development and design studio within the Flight Centre family. We build travel solutions used by some of the largest companies on the planet - we have just one goal: making business travel better for everybody. WhereTo provides an AI-powered travel platform for...

Flanks is looking for a Backend Engineer to design and maintain the data pipelines and backend services powering their Open Wealth Platform. Health insurance, 50% subsidised digital canteen, yearly training budget, birthday day off A little bit about Flanks Flanks is shaking up the wealth management industry by making it simpler and way more efficient for...

En Vortech seguimos creciendo y buscamos incorporar un/a Senior Backend Engineer especializado/a en .NET para colaborar en un proyecto de Facturación estratégico, con uno de nuestros clientes internacionales del sector software. Buscamos un perfil claramente orientado a backend, con experiencia sólida en arquitecturas modernas, sistemas distribuidos y...

WHO WE AREMacadam is a movement powered by over 15 million users who walk every day with us. We're here to make walking more rewarding, engaging, and consistent - not just a habit, but something people genuinely enjoy.Rooted in thoughtful design, our approach helps people stick with healthier routines by making them feel simple, motivating, and fun. As we...

Barcelona, SpainOLX – Data Science and Analytics /Full-time /RemoteJOIN OLX GENERATIVE AI INNOVATION ENGINEERING TEAM Note: This role is based in Spain.We are looking for a mid-level Backend Engineer to join our Generative AI Innovation team and help drive AI innovation at OLX.Our team is at the forefront of GenAI-powered solutions, developing cutting-edge...

🔵 En CAPITOLE, ¡seguimos creciendo y queremos hacerlo contigo!👇 Descripción del puestoEstamos buscando un/a Senior Python Developer para incorporarse a un equipo de ingeniería que desarrolla aplicaciones backend escalables y sistemas distribuidos de alto rendimiento.Buscamos un perfil con fuerte experiencia en arquitectura de microservicios,...

About the OpportunityYou will work in the Grow & Engage domain, the heart of the customer experience, spanning everything from customer acquisition and onboarding to our premium membership tiers and the daily engagement of millions of users. Specifically, within the Subscriptions segment, you'll help build and improve features that enable customers to...

About Air Apps At Air Apps, we believe in thinking bigger - and moving faster. We’re a family-founded company on a mission to create the world’s first AI-powered Personal & Entrepreneurial Resource Planner (PRP), and we need your passion and ambition to help us change how people plan, work, and live. Born in Lisbon, Portugal, in 2018 - and now with...

About the opportunity You will work in the Financial Empowerment domain. Our goal is to empower everyone to achieve financial freedom and unlock their potential for a better life by providing N26 users with access to the money they need to achieve their life objectives, whether today (deposits or borrowing) or tomorrow (saving and investing). In this role,...

We're Hiring: Backend Engineer (Hybrid - Barcelona) We are expanding our core engineering team. We are looking for an experienced Backend Engineer who thrives on solving complex technical challenges across distributed systems, data pipelines, and applied AI infrastructure. What You'll Do: Design and build scalable backend services using Python and...

Collaborate with frontend engineers, product managers, and DevOps/platform teams to build meaningful features through an Agile SDLC/Kanban workflow Conduct peer code reviews and contribute to retrospectives Define technical requirements and identify effective solutions to meet team goals Participate in engineering retrospectives focused on testing,...

At Cirql One, we are building the foundational layer that connects enterprise data to AI: a layer that doesn't just relay information, but genuinely understands it, making business meaning explicit, trusted, and actionable at scale. The problem we're solving is deceptively hard. SAP runs the core operations of more than 90% of Fortune 500 companies. The data...