Founding Product Engineer

About Trunnio

Every building, road, warehouse, and farm runs on equipment: tractors, cranes, forklifts, excavators. Over 100K dealers and rental companies across North America keep those machines sold, rented, and serviced, yet most still run on phone calls, voicemail, spreadsheets, and decades-old software, with fewer people to do the work every year.

Trunnio is the AI revenue engine for equipment sales, rental, and service. Our agents work around the clock across phone, text, web chat, and email: they answer every inquiry, qualify and route it to the right branch, draft the quote, log it to the CRM, and follow up so nothing goes cold. Trunnio sits on top of the CRM, DMS, and ERP a dealer already uses, so reps spend their time selling instead of keying in data.

This is one of the biggest opportunities to bring real-world AI to an industry that software has barely touched.

The Role

Founding product engineer hire. You own the product: designing the infra, building the product, and handling customer relationships and onboarding.

What You'll Own

• Ship production features across the entire platform: voice agents, workflow automation, memory architecture, and the customer-facing UI
• Design and build the real-time voice pipeline, with response delivery at sub-second latency
• Evolve our memory system: vector stores that make every agent conversation contextually intelligent
• Build the integrations dealers actually need: Salesforce, HubSpot, and custom CRM, DMS, and ERP connectors
• Architect multi-tenant infrastructure that scales from 10 to 10,000 organizations
• Make direct technical decisions: model selection, infrastructure tradeoffs, build vs. buy, etc.

The Stack

Next.js · TypeScript · PostgreSQL · Redis · Twilio · LiveKit · OpenAI · Anthropic · Deepgram · Vector DBs

What We're Looking For

• 2+ years building production software, ideally full-stack TypeScript/React with real backend depth
• You've worked with LLMs beyond the tutorial stage: prompt engineering, tool use, embeddings, retrieval-augmented generation
• Comfortable in real-time systems: WebSockets, streaming, audio pipelines, or telephony infrastructure
• Strong opinions on architecture, loosely held. You make tradeoffs fast because you've shipped enough to know what matters
• You thrive in ambiguity. No PRDs, no Jira epics. You talk to customers, identify what to build, and ship it
• Ownership mentality: this is a founding role with founding-level equity and founding-level responsibility

Why This Role

Real customers, real revenue, real problems. Every line of code moves the needle. If you have ever wanted to build your own startup, this is the best learning ground for you.

Details

📍 SF, in person, 6 days a week. Requires travel and speaking to customers

💰 Competitive Salary + Equity + Free meals 🤤

🇨🇦 We can sponsor TN visas if required