- AI-powered infrastructure company with $10.3M in funding from top-tier investors.
- Exciting product: APIs, attribution models, MCP integration, AI-based recommendation engines, and assistants - not your typical CRUD app.
- Real traction: 30+ new customers every month, 10M+ end users monthly.
- Small team, so you'll genuinely shape how we build things.
- You'll touch everything from frontend widgets to backend infrastructure to data pipelines. The work doesn't get repetitive.
- We actively learn about new tech and AI tools and adopt where we can — we have to, because our customers do.
- Remote-first, but we get together regularly - company-wide and as an engineering team.
- The founding team consists of serial founders and experienced big-tech operators from Twilio, Wise, and Skype.

What We’re Building
Why join
- AI-powered infrastructure company with $10.3M in funding from top-tier investors.
- Exciting product: APIs, attribution models, MCP integration, AI-based recommendation engines, and assistants - not your typical CRUD app.
- Real traction:



30+ new customers every month, 10M+ end users monthly.
- Small team, so you'll genuinely shape how we build things.
- You'll touch everything from frontend widgets to backend infrastructure to data pipelines. The work doesn't get repetitive.
- We actively learn about new tech and AI tools and adopt where we can — we have to, because our customers do.
- Remote-first, but we get together regularly - company-wide and as an engineering team.
- The founding team consists of serial founders and experienced big-tech operators from Twilio, Wise, and Skype.

What We’re Building
We help SaaS companies turn their users and partners into a sales channel through referrals, sharing, and recommendations - 10M+ end users interact with our system every month.
Our widgets live inside customer products, which means your code runs in environments you don't control. On top of that: APIs that customer developers integrate against, and a port

📌 Senior Platform Software Engineer (España)
🏢 Cello
📍 España