About this role
Senior/Staff Software Engineer (Communications)
Senior/Staff Software Engineer (Communications)
Permanent
Full time
Barcelona, CT, Spain
Hello!
We're starting something new at Factorial: Chats. It's a fresh area of the product, built around communication and, from day one, built with AI and agents doing real work in it, not just a chatbot bolted onto the side. There's no team page for this yet. No backlog gathering dust, no "how we've always done it." Just the problem, and whoever shows up to solve it.
We're hiring a Senior or Staff engineer to help get Chats off the ground. Fullstack is ideal, but if your expertise lies merely in mobile it works for us too!
This isn't just a new product, it's a chance to rethink how software gets built. We're creating an AI-native product from scratch, where AI isn't another feature but part of the core architecture and user experience. Every technical and product decision starts with the question: how would we build this if AI existed from day one?
We're looking for engineers with a founder mentality. People who thrive in ambiguity, move quickly, question assumptions, and are excited to create rather than maintain. There won't be years of legacy decisions to work around, only opportunities to shape the product, the platform, and the culture from the ground up.
About the team 👥
Our Engineering team is the engine behind Factorial, crafting the tech that makes H