Voice AI and Chat AI agents: Testing and Observability. Backed by Y Combinator.
About the role
You'll build the core of Cekura: the simulation engines, evaluation systems, self-improvement loops, and observability pipelines our customers rely on to ship voice agents with confidence.
What they're looking for
- A strong generalist engineer excited to work across systems and AI, not someone looking to stay in one lane
- You've built and operated production systems and care about reliability, latency, and correctness
- Fluent in Python and comfortable picking up whatever the problem needs
- Strong instincts about LLMs: where they fail, how to evaluate them, how to build reliable systems on unreliable models
- You like ambiguity, move fast, and raise the bar for the people around you
- You've read the first section of this JD twice and you're still here
More about this role
We work with unusual intensity. In-person in San Francisco, six days a week, long days, most weekends. This is not a phase we'll grow out of. It's how we've chosen to build, because we're in a market where speed decides who wins.
We're telling you this in the first paragraph, not the last, because we only want people who read that and feel pulled in, not talked into it. If you want a 9-to-5 (genuinely, no judgment), this isn't your role, and we'd rather you know now.
Top-of-market cash. We don't pay average salaries and ask for extraordinary hours. The comp reflects the commitment.
Meaningful equity you can believe in. Significant grants, employee-friendly terms, and our intent to create liquidity opportunities as we raise.
Zero commute tax. We support you living close to the office, with dinner at the office every night. Your hours go into building, not commuting.
Founders in the trenches. We work the same schedule we ask of you. This is a shared war, not extraction.
Compression of a decade into two years. You'll ship more, own more, and grow faster here than anywhere paying you to coast.
Cekura (YC F24) is building the voice AI engineer. Teams use Cekura to test agents before...
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