Kabilio We're Kabilio, a company backed by two leading venture capital firms, founded by experienced entrepreneurs, Alex Valls and Jose Ojeda, with a strong track record in building and scaling successful tech companies.Our goal is to become the go-to Financial Operating System for accounting firms and SMEs in Southern Europe, unifying accounting, tax, payments, planning, and banking into a single platform. We are currently a tight-knit team of 35 people and plan to grow in 2026, with a strong focus on engineering, product design, and sales.This is our tech stackTypescript | Python | .Net (a little bit)
React | Remix
Node.js | Prisma ORM | Effect
PostgreSQL | Docker | AWS and GCP
Today, Kabilio already runs three core products in production — Invoices Processing, Bank Transactions, and Invoicing — used daily by real customers. AI sits at the core of everything we build, from automating and categorizing financial data to enabling intelligent workflows and decision-making across the entire financial lifecycle. As a Full Stack Engineer at Kabilio, you will build and own product features end-to-end, working closely with with Ivan (CTO), Jorge, Karel and Arnau, Tech Leads, as well as with a cross-functional team of devs and Product Managers.You'll contribute to both frontend and backend systems, helping us ship high-quality software that is used daily by real customers.This is a hands-on role focused on delivery, quality, and collaboration, with a high degree of ownership and the opportunity to influence technical decisions without being a people manager.Design, build, and maintain full-stack features across our products.Work with React/Remix on the frontend and Node.js on the backend.Ensure code quality through testing, reviews, and best practices.Hybrid setup: 3 days/week in our Barcelona office. The home office days give you time to focus and the flexibility to plan your day around your productivity peaks.Indefinite Spanish Contract + top work equipmentStrong experience building production web applications, ideally with React and Node.js.Good understanding of relational databases (PostgreSQL or similar).Professional level Spanish, and English (B1 should be enough).