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Full Stack Engineer



Job description

Kabilio

We’re, a company backed by two leading venture capital firms, founded by experienced entrepreneurs, and, with a strong track record in building and scaling successful tech companies.

What We’re Building

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 stack

Languages

  • Typescript | Python | .Net (a little bit)

Front

  • React | Remix

Back

  • Node.Js | Prisma ORM | Effect

Infra & DB

  • PostgreSQL | Docker | AWS and GCP

Why this role matters?

Today, Kabilio already runs three core products in production — Invoices Processing, Bank Transactions, and Invoicing — used daily by real customers.

At the same time, we’re building our Accounting platform, the product that defines our long-term vision and the reason Kabilio was founded.

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.

We rely on modern architectures and proven technologies to turn this vision into a scalable, production-ready platform.

As a Full Stack Engineer at Kabilio , you will build and own product features end-to-end, working closely with with CTO), 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.

What you’ll do?

  • Design, build, and maintain full-stack features across our products.

  • Work with React/Remix on the frontend and Node.Js on the backend.

  • Collaborate closely with Product and Design to turn requirements into solutions.

  • Ensure code quality through testing, reviews, and best practices.

  • Make pragmatic trade-offs to ship quickly + long-term maintainability.

  • Contribute to technical discussions and propose improvements to the codebase.

What we offer?

  • Salary range: Competitive salary (TBD in the first call).

  • Flexible benefits via Cobee.

  • 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 equipment
  • Opportunity : Enter a massive market ready for disruption.

    We have a clear strategy to make our mark in Spain, leveraging what we have seen in other markets.

  • Collaborative and Growth Culture : We prioritize open communication and respectful discussions.

    Your ideas will have a real impact, and you will have the chance to shape and grow with the business

What should you bring to the table?

  • Ability to work autonomously while collaborating with a team.

    Technical ownership.

  • Strong experience building production web applications, ideally with React and Node.Js.
  • Good understanding of relational databases (PostgreSQL or similar).

  • Experience working across the full product lifecycle (e.G. SaaS).

  • Care for clean code, maintainability, and best practices .

  • Professional level Spanish, and English (B1 should be enough).

  • Above all, you’re a reliable and trustworthy person


Required Skill Profession

Engineering



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