Founding AI Engineer

About the Role

Join an early-stage B2B SaaS team as its founding AI engineer, building the core of a real-time voice agent that conducts sales conversations, demonstrates products in a browser, and follows up with prospects. You will lead the agent's technical direction and help shape its next capabilities.

What You'll Do

• Build the agent's reasoning, tool use, memory, and ability to recover when live conversations go off script while meeting strict latency requirements.

• Develop evaluation pipelines and use real sales-call data to drive measurable improvements, including fine-tuning where useful.

• Improve the reliability of browser-based product demonstrations conducted during live calls.

• Ship end-to-end product work using TypeScript, Node.js, and Next.js.

• Work directly with customers and design partners to shape the product and guide decisions about models, architecture, and build-versus-buy tradeoffs.

What We're Looking For

• Four to seven years of experience as an AI engineer, including at least one year working with real-time or voice AI systems.

• Experience shipping AI agents to production and owning the workflow, including evaluations, observability, and cost optimization.

• Hands-on experience with voice AI, real-time applications, browser automation, or AI sales products.

• Proficiency in TypeScript, Node.js, and Next.js; familiarity with WebRTC, LiveKit, Playwright, LLM APIs, and agent evaluation methods is relevant.

• A CS degree or another technical background, such as mathematics, physics, or engineering.

• Customer-facing engineering, design partner collaboration, sales technology, or startup experience is valuable.

Compensation & Benefits

Base salary: $200,000 to $250,000 annually. Visa sponsorship is available.

Location

On-site in New York, New York, United States. Candidates must be based in New York or able to relocate from day one.