Founding Software Engineer

You’d be our second founding engineer - architecting core systems from scratch and working shoulder-to-shoulder with all the founders across product, GTM, and ops. Huge surface area, real ownership, design-doc to production.

• Voice AI - Sub-second voice agents (SIP, warm payment transfers). Latency is a feature.
• Agents that sell - Conversation design, booking + upsell flows, experiments that turn dialogue into revenue.
• AI agents & computer use - Agents that act, including computer-use agents driving legacy hospitality tools with no API.
• Hospitality integrations - Opera Cloud, DerbySoft, Hapi, and the rest of the PMS/POS/ticketing stack. Make systems you don’t control behave.
• Synthetic NPS & call-quality analysis - AI grading every conversation into a weekly feedback loop.
• Automating the SDLC - Agent-authored code across the lifecycle, with the evals and guardrails that protect quality without giving up speed.
• High uptime, AI-native ops - Hotels run 24/7; build the kind of reliability they never notice.

We’re looking for someone with a founder mentality - ready to own major product and business outcomes, not just tickets. This role is part founding engineer, part forward-deployed engineer, and part customer success when it’s needed - until the CS agents we’re building take that over. You’ll wear all three hats, and help automate yourself out of the third.

We’re building the AI operations layer for hospitality - an agentic workforce that meets guests on any channel (voice, SMS, web chat, email, WhatsApp), in English or Spanish. Our agents don’t just answer; they have empathy and personality, and they sell - already closing bookings and upsells at rates above many human call-center reps. We’re live in production with real hotels and ski resorts, with integration partners live and a new resort pilot in flight., * 5+ years - Building and operating production backends. Strong in TypeScript.

• AI-native by default - Coding agents and computer-use tooling are your daily multiplier. Core, not nice-to-have.
• Innovating in agentic development - Pushing the frontier of how AI builds software and automates the SDLC, balancing quality and speed rather than trading one for the other.
• Strong design & architecture chops - AI can write the code; it still lacks taste and foresight. You bring the system design and long-view it can’t.
• LLMs in production - Agents, tools, eval loops - not just demos.
• Telephony interest (or scar tissue) - SIP, carriers, PBXs, programmable voice.
• Distributed-systems fluency - Queues, idempotency, retries, state machines.
• High agency, low ego, fast - Ship and iterate over wait-for-perfect.

Our stack

TypeScript monorepo (NestJS, Drizzle, BullMQ) + React 19/TanStack - on AWS EKS, Aurora Postgres, Valkey, Istio, Auth0, Cloudflare. Multi-model (Anthropic, OpenAI, Gemini) via Azure Foundry/Vertex, with the Vercel AI SDK and Mastra powering our agents, and an evolving voice stack we keep at the very leading edge - Vapi, Deepgram, ElevenLabs, and others. We ship daily.

Bonus: voice/telephony depth · PMS/POS or travel tech · you love Gas City / beads (we lean on it heavily) · conversation/QA analytics · early-startup time · Spanish or French.

What we offer

Competitive salary, equity, and benefits. Hybrid in San Francisco (~3 days/week), direct access to the founders, and the most interesting problems in applied AI - voice latency, computer-use agents, agents that close revenue, and reliability at scale. And since our customers run everything from ski lifts to beach resorts, we hold the best deals close on a chairlift or a sun lounger, not a Zoom - pack your skis and a swimsuit.

withQ (Quickserve AI Inc.) is an equal opportunity employer. #J-18808-Ljbffr