Lead Developer Evangelist, Voice AI (SF)

Lavendo • San Francisco, CA

4d • $180,000 - $230,000 • Hybrid

About The Position

Lavendo partners with startups and high‑growth companies to help them hire top‑tier sales, GTM, and technical talent. This role is with one of our clients; we’ll share full details about the company and interview process as we get to know you and confirm mutual fit.

Our client is an AI company headquartered in San Francisco, backed by $9.6M in seed funding. They build and deploy frontier voice AI models — the voice equivalent of what OpenAI and Anthropic do for language — delivered via cloud API or fully on-prem, slotting directly into customers' existing orchestration stacks.

Their models drive 15%+ call success rates, 23%+ increased sales, and 25%+ IVR containment for companies ranging from high-growth startups to Fortune 500 brands. Usage-based pricing. Real customers. Real results.

The Mission
Make voice AI feel human. The team brings deep linguistic and machine learning expertise to close the gap between how machines sound and how people actually speak — with warmth, authenticity, and emotional nuance built into every model.

Requirements

• 4–8 years working in developer evangelism, DevRel, or developer-facing content at early or growth-stage startups
• A public body of work you can share right now: YouTube, X/Twitter, Substack, GitHub, or some combination, with a developer audience
• Technical fluency — enough to build with APIs, debug a webhook, and explain how a voice agent stack fits together. You don't need to be a senior engineer, but you need to be able to build
• Equally comfortable on camera and on stage
• Based in the SF Bay Area
• Authorized to work in the US — no visa sponsorship available

Responsibilities

• Define and execute the developer community strategy — start from scratch, replace what isn't working with something developers actually want to be part of
• Create original video content: tutorials, demos, builds, hot takes — on the platforms where voice AI developers actually spend time
• Show up at hackathons, meetups, and conferences as the face of the company in developer conversations
• Build reference apps, open-source tools, and demos in public — the kind of work that gets shared
• Write content that engineers actually want to read, on the company blog and your own channels
• Surface developer feedback directly to the product and engineering teams
• Develop a 6-month strategy for events, talks, and partnerships — then execute it
• Propose your own cadence. No one will hand you a schedule

Benefits

• Competitive equity package
• Hybrid work
• Creative ownership
• Direct access to leadership and the product team
• Scaling fast environment
• Culture that values craft over hype, moves with autonomy, and doesn't hide behind process

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed