Founding Engineer

Engineering builds and runs Vercilio end to end — the chat product, the model-routing layer, billing, and the infrastructure that keeps streaming responses fast and reliable for everyone. We ship in small, autonomous teams and value people who can own a problem from idea to production.

As a Founding Engineer you'll have outsized influence over what we build and how we build it. You'll work directly with the founders on the hardest problems across the stack — from the streaming chat experience to the model-routing layer that picks the right model for every message.

This is a role for someone who thrives in ambiguity, ships quickly, and cares deeply about craft. You'll set patterns the rest of the team will build on for years.

• Own features end to end across the frontend, backend, and infrastructure.
• Design the systems that route, stream, and bill millions of AI requests reliably.
• Set engineering standards — testing, observability, and code review — as we grow.
• Make pragmatic build-vs-buy calls that keep us moving fast.

• You've shipped and operated production software that real users depend on.
• You're comfortable owning a problem from a vague idea to a deployed, monitored feature.
• You write clear code and clear explanations, and you raise the bar for those around you.
• Bonus: you've worked with LLM APIs, streaming, or high-throughput backends.