Jobs · Engineering · California

Member of Technical Staff, Agentic Developer Experience

Vapi · San Francisco, CA · 1 mo ago
HybridEngineering$50/hrFull-time

Vapi

Vapi is the platform for deploying voice agents that know your business and can listen, adapt, and resolve in minutes. The company has a diverse customer base including Amazon Ring, ServiceTitan, New York Life, Intuit, Kavak, and many others, from YC startups to Fortune 500 companies. Vapi recently raised a $50M Series B round led by Peak XV Partners, bringing the total funding to $72M.

Why We’re Hiring

We are looking for a dedicated owner to turn the fragmented pieces of Vapi’s development lifecycle into a reliable one. The role involves owning and launching Vapi’s platform for autonomous, background engineering, building a harness for real-time voice AI, and creating the foundation that accelerates every engineer.

What You’ll Do

  • 30 Days: Map and instrument Vapi’s path from task to production, identify the largest constraints on agent effectiveness, and ship your first improvements to our sandbox environment, developer tooling, or validation infrastructure.

  • 60 Days: Launch the first production workflow in Vapi’s internal software factory. Give background agents the context, tools, sandbox, telemetry, and automated quality gates required to turn scoped tasks into review-ready PRs backed by real evidence.

  • 90 Days: Own and launch Vapi’s platform for autonomous, background engineering. Bring the ambition of Ramp Inspect and Stripe Minions to the frontier of real-time voice AI. Build a harness that lets agents place real calls, measure latency, conversation quality, inspect telemetry, and iterate to a verified result. Create the foundation that accelerates every engineer and puts Vapi on a credible path to shipping 10× faster.

Who You Are

  • You have built internal platforms, developer tooling, or infrastructure that materially changed how engineers build, test, and ship software.

  • You are a hands-on engineer with strong software fundamentals across distributed systems, platform architecture, API design, CI/CD, and monorepo or large-codebase workflows.

  • You have practical experience building agent harnesses and using coding agents such as Claude Code, Codex, Cursor, or open-source equivalents on real engineering work.

  • You know how to design secure agent interfaces, MCP integrations, and sandboxed runtimes where agents can call APIs, run CLI commands, and use general-purpose tools safely.

  • You have built or operated online and offline LLM evaluation systems and can reason clearly about accuracy, latency, reliability, and cost.

  • You are fluent in at least one of TypeScript, Python, or Go and comfortable working across containers, databases, queues, orchestration systems, and modern cloud infrastructure.

  • You stay current on frontier models and techniques such as prompt caching, context compression, retrieval, and multi-agent coordination, and you know when the newest tool is useful versus distracting.

  • You thrive in ambiguity, seek raw input, and turn fragmented experiments into simple systems that other engineers want to use.

How We Work

  • Build something worthy of love: Craft matters. We build products and experiences customers genuinely love, not just tolerate.

  • Commit and follow through: We finish what we start and build trust by being people others can count on.

  • Why not today? We value urgency and momentum. The fastest path to customer value usually wins.

  • Seek raw input: We go directly to customers, data, and teammates instead of relying on summaries or assumptions.

  • It’s our problem: We operate as one team. We share credit, own mistakes together, and support each other when things get hard.

  • Be direct and kind: We give feedback clearly, respectfully, and without delay.

What We Offer

  • Real stake: We offer a competitive salary and equity ownership.

  • Comprehensive health coverage: medical, dental, and vision plans.

  • Team love: We love hanging out, and we do quarterly off-sites.

  • Flexible time off: take what you need.

  • More: catered meals, transportation, equipment, and a $10k annual L&D budget.

Similar jobs