We’re launching a new team dedicated to modernizing and expanding one of our customer-facing tools — and we’re looking for a Senior Full Stack Engineer to help build it from the ground up

This isn’t a legacy product handoff: you’ll be joining at the very start, shaping both the technical direction and the team culture from day one

The current stack is Vue.js on the frontend and Python on the backend, but we’re planning a migration to .NET in the near future

As the senior engineer, you’ll take a leading role in architecture decisions, technical direction, and mentoring as the team grows

You’ll be one of the founding members of a brand-new team, led by our Tech Team Lead

We’re actively growing the team and expect to bring on a Product Manager and one additional Engineer alongside you

This means you’ll have real influence over how the team is structured, how we work, and the technical foundations we build on — it’s a rare chance to help define a team’s culture and practices from the very beginning, rather than stepping into something already set





Developing and maintaining applications, including front‑end interfaces, back‑end services, and databases

Contributing to the architecture, design and implementation of new features and improvements

Implementing best practices for code quality, testing and deployment automation

Ensuring high‑quality software through active participation in code reviews

Actively engaging in sprint retrospectives, refinements, daily stand‑ups, and other team processes

Taking full ownership of the products and solutions you develop, eliminating bugs early in the process through TDD/BDD and other tests

Leveraging AI‑assisted development tools and workflows to increase engineering velocity, while maintaining code quality and rigor

Sharing knowledge and supporting fellow developers, QA professionals, and support teams

Supporting team leaders with your expertise and assist in customer meetings

Owning CI/CD pipelines to ensure seamless

📌 Senior Full Stack Engineer (Madrid)
🏢 LanguageWire
📍 Madrid