We will provide visa and relocation support.
People say it looks like magic. It's changing lives and transforming an industry. By joining us you’ll be solving challenging problems within a talented team and a culture built for high performance. We’re committed to delivering real change in the world - this isn’t easy, and in truth, we love that it’s hard.
At Halter, we know how much farmers care - for their animals and their pasture. Happier animals. We're looking for Lead Engineers who perform at the top of the craft. We don't mind whether your strengths sit on the frontend, backend, full stack, or on the platform side that gives every other engineer leverage. Halter is one system: hardware, software, and AI, running live on real farms. Modelling the physical world (animals, pasture, terrain) accurately enough to act on in real time.
Building mobile and web experiences that hold up at 5am whilst out in a paddock in the rain.
Engineering against constrained hardware, flaky rural connectivity, and the messiness of the physical world, and shipping with pace despite it.




Make the architectural calls that matter, then back them up by writing the code.
Help set the pace and quality bar for engineering at Halter.
Help evolve our testing strategies, CI/CD workflows, and infrastructure patterns.
Own the reliability and performance of your domain, especially when things get tricky. Deep domain knowledge matters, and you'll be expected to develop it.
Have spent years shipping complex systems in production and have the experience (and scars) to show for it.
Have worked in cloud environments. AWS is a bonus.
A degree in software engineering (or equivalent) is nice to have, but not essential.
Frontend / Mobile: strong UX intuition, modern frontend frameworks (React, React Native a bonus), an eye for performance and polish on real devices.
Backend: building and scaling REST APIs, distributed systems, and event-driven services. Comfort with both relational and non-relational databas

📌 Senior Lead Software Engineer (Cataluña)
🏢 Halter
📍 Cataluña