WHO WE ARE ?
Creating content that resonates is great — turning that attention into growth is even better. That's what Manychat does.
Our AI-powered automations help creators and brands engage with audiences across Instagram, Messenger, WhatsApp, and TikTok — at the right moment, with the right message, minus the manual work.
We're 400+ people across three continents behind the leading platform for conversational growth, with AI skills shaping how we build, how we work, and how we grow.
WHO WE'RE LOOKING FOR ?
Want to build something from zero, with full ownership and C-level backing? Ready to set the engineering bar as the first person on the team? Excited to design and build business-critical systems with zero tolerance for failure?
Then keep reading, because this role hands you a piece of Manychat that doesn't exist yet: Billing's own Python layer.
Billing runs entirely on PHP today, and it works. But Manychat is entering a multiproduct chapter: new ventures and brands are launching on top of the core platform, and Billing has to carry that weight. This isn't a rewrite.



It's a foundation that doesn't exist yet — a Python layer built to carry payments, billing, anti-fraud, and compliance logic at scale.
There's no roadmap for this yet. You'll be the first engineer on it, which means you set the patterns, the standards, and the judgment calls, and shortly after, you'll mentor two engineers who join to build alongside you.
YOUR FUTURE TEAMMATES ?
We run Manychat under serious load, every day, and get it ready to handle even more. The stack is built for speed and durability, and we're already working at the front of the AI era, not scrambling to catch up. We're the ones who shape and own what gets built. You'll do that work alongside a team that already moves fast, holds a high bar, and has each other's backs when it counts.
WHAT YOU'LL DO ?
Design and build Billing's first Python layer: the bridge between product features and the existing PHP core.
Define the patter

📌 Founding Python Engineer, Billing (Barcelona)
🏢 Manychat
📍 Barcelona