Stand up cold calling infrastructure and test it as a channel
Build callback flows — AI collects consent, Retell agent calls them back
Turn anonymous website visitors into actionable leads
Test gifting as a conversion lever
Explore marketplace listings and partner directories
Build a self-serve pilot program page — click, buy, start
Run ads for free pilot programs and measure CAC
Launch vertical-specific outbound and ABM plays
etc etc
You're a fit if:
You're a builder who gets bored maintaining — you want to test new things constantly
You can code or script (Python, SQL, JavaScript) enough to build real tools, not just configure SaaS
Good taste for which experiments are worth running and which are noise
You move fast — idea to live test in days, not weeks
You've worked at a startup where you figured things out, not followed a playbook
About Retell AI
Retell AI is using first principles to reimagine the call center with cutting-edge voice AI.
Thousands of companies now utilize Retell’s AI voice agents to handle sales, support, and logistics calls that once required large teams of human agents. Backed by Y Combinator, Alt Capital, and other leading investors, we have scaled to $60M ARR with a team of 40 people, up from $5M at the start of 2025.
Our vision for 2026 is to build a modern CX platform where entire contact centers are powered by AI. Instead of basic automation that needs constant human tuning, we’re creating intelligent AI “workers” that can act as frontline agents, QA analysts, and managers, continuously executing, monitoring, and improving customer interactions.
We’re growing quickly and looking for ambitious builders who want to tackle hard technical problems, move fast, and have real impact at one of the fastest-growing voice AI startups.
