Empleos de backend engineer en Barcelona

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...

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...

About the OpportunityYou will work in the Incentives team within the Grow & Engage domain. This is the heart of the customer experience ranging from the acquisition and signup to our premium membership tiers and the daily engagement of our users. You will work in teams delivering the newest and most innovative features serving our customers in the best way...

Who we are:Marfeel is a publishing intelligence platform trusted by over 5,000 publishers worldwide: including Business Insider, Le Figaro, El País and McClatchy. We help publishers turn data into action: understanding what content is working right now, what has performed over time, and what to do next. Our platform gives editorial, SEO, audience, and...

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...

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...

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...

  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...

Capitole is one of the best IT consulting companies and the place you want to be. Why? People in the center. We believe in a different model, more human, with the employee in the center of our company Interesting projects. Cutting-edge technologies. Agile methologies Happiness and low turnover rate €1200 per year training budget ⌚ Flexible working...

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%...

Why this role matters JOIN helps thousands of businesses find the right people — faster, fairer, and with less friction. Our platform handles millions of candidate interactions, and our clients praise JOIN’s attention to detail and unmatched user experience. We’re looking for a Backend Engineer to join our established engineering hub in Spain. You’ll...

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...

About the opportunityYou will work in the Grow & Engage domain—the heart of the N26 experience. From initial signup to premium memberships and daily engagement, you’ll work in teams delivering innovative features that serve our customers.We are seeking a collaborative Backend Engineer to join our mission-driven team. As a vital contributor throughout the...

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...

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,...

Why this role matters JOIN helps thousands of businesses find the right people — faster, fairer, and with less friction. Our platform handles millions of candidate interactions, and our clients praise JOIN’s attention to detail and unmatched user experience. We’re looking for a Backend Engineer to join our established engineering hub in Spain. You’ll...

About the opportunityYou will work in the Grow & Engage domain—the heart of the N26 experience. From initial signup to premium memberships and daily engagement, you’ll work in teams delivering innovative features that serve our customers.We are seeking a collaborative Backend Engineer to join our mission-driven team. As a vital contributor throughout the...