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Vapi

Member of Technical Staff, Agentic Developer Experience

Location
San Francisco, CA, US
Arrangement
Hybrid
Employment type
Full-time
Level
Staff
Posted
25 August 2026 (about a month ago)

Checked 27 days agoApplications go to the employer, never to RoleSprint

About this role

Vapi (/ˈVɑːpi/):

- Voice AI that resolves, not transfers

- Powering 1 billion calls for companies like Amazon Ring, Intuit, ServiceTitan, and New York Life

- Trusted by 1 million developers building the future of voice agents

- Backed by Peak XV, Bessemer, Kleiner Perkins, M12, Y Combinator, and more with $72M raised

- Try talking to Vapi now! https://vapi.ai/

Vapi (/ˈVɑːpi/):

- Voice AI that resolves, not transfers

- Powering 1 billion calls for companies like Amazon Ring, Intuit, ServiceTitan, and New York Life, Uber, NHS

- Trusted by 1 million developers building the future of voice agents

- Backed by Peak XV, Bessemer, Kleiner Perkins, M12, Y Combinator, and more with $72M raised

- Try talking to Vapi now! https://vapi.ai/

Why We’re Hiring This Role:

- Vapi engineers are already building agent skills, workflows, and tools. We need a dedicated owner to turn these fragmented pieces into one reliable agentic development lifecycle.

- We have an opportunity to connect sandboxes, CI, verification, and background agents into a cohesive system that compounds across every engineering team.

- We want to ship 10× faster by building the frontier agent harness for real-time voice AI. Agents will place real calls, validate their work against Vapi-specific systems, and ship with confidence.

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 https://builders.ramp.com/post/why-we-built-our-background-agent and Stripe Minions https://stripe.dev/blog/minions-stripes-one-shot-end-to-end-coding-agents to the technically novel and difficult 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.

Why Vapi:

- Generational impact: Build the human interface for every business

- Ownership culture: 30% of us are previous founders

- Kind team: The founders, Jordan and Nikhil, are Canadians

- Tier-1 investors: YC, Kleiner Perkins, Bessemer, M12, Peak XV, and more

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

Work location

  • San Francisco, CA, US

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About this listing

Published on Ashby under the board identifier Vapi, which is the name the employer’s own job board carries. RoleSprint has not verified the company’s registered or trading name, so it is shown exactly as published rather than tidied up.

RoleSprint is not the employer and not a recruiter. Applications are made on the employer’s own site and never reach us; what RoleSprint does is help you decide whether a role is worth your time and prepare for it if it is.

Published 25 August 2026, last checked 27 days ago. A posting stops being advertised here 90 days after the employer published it, and one the employer takes down is marked closed rather than quietly removed.

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