About the role
This is a high-impact role for engineers who want to move fast, take ownership, and help build a category-defining product from the earliest days. As a Founding Senior Software Engineer, you won't just be shipping features—you'll shape the core systems and experiences that power millions of automated conversations.
You'll work across the stack, solving tough technical challenges in real-time audio, global telephony, and developer tooling. You'll collaborate closely with the founding team, talk to customers, and ship improvements weekly—sometimes daily.
If you're excited by big problems, fast feedback loops, and the opportunity to help define how businesses use voice AI at scale—this is the role for you.
About the company
Retell is building the new standard for automating call center communications, including sales, support, customer engagement, and retention calls.
Backed by Altman Capital, Y Combinator, and top investors, we've raised a $4.7M seed round and hit $10M ARR in 15 months.
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