Job Details

Join to apply for the Founding AI/Voice Engineer role at TechTree

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Base pay range

$150,000.00/yr - $200,000.00/yr

About The Company
Our client is an AI tools company focused on automating the freight brokerage industry with AI voice agents. The company is in its pre-seed stage, founded in 2025, and backed by Y Combinator, Naval Ravikant, Rajul Garg, and top Silicon Valley investors. It aims to replace manual processes in freight brokerage with AI-driven solutions.

About The Role
Develop AI voice agents for freight brokerage, focusing on real-time, production-grade voice AI, model design, and low-latency inference. Work in SF Bay Area, full-time, with competitive salary.
Moving a single truckload of avocados from California to Chicago can take 50+ phone calls - carrier pitches, compliance checks, rate haggling, driver tracking. All still done manually. Our client replaces that with AI voice agents that sound human and manage the entire workflow - from first call to final delivery. $1 Million+ shipments booked, negotiated, and tracked - no humans involved. This isn't a chatbot. It's a freight broker that runs on GPUs. Real infrastructure for an industry still running on phones.

What You'll Build

• Work on real-time, production-grade voice AI - no wrappers, no demos, no borrowed infra.
• Build agents that can negotiate, verify, and close - live on calls.
• Fine-tune LLMs, ASR, and TTS for high-pressure, noisy environments.
• Own everything from model design to low-latency inference infra.
• Turn chaotic phone calls into fully automated workflows.

Requirements

• 2-4 years of experience building AI agents (ideally voice-based) in production
• Strong background in LLMs, ASR, and TTS (including fine-tuning models)
• Experience with low-latency model deployment and real-time inference
• Exposure to infra-level design, orchestration, and pipelines
• High agency and startup mindset
• 1++ years of experience
• San Francisco, CA location preferred
• Full-Time employment

Required Skills

• LLM (Large Language Models)
• ASR (Automatic Speech Recognition)
• TTS (Text-to-Speech)
• low-latency model deployment
• real-time inference
• infra-level design
• orchestration
• pipelines

Benefits

• High ownership, direct work with YC founders
• Hybrid SF or remote India flexibility
• Competitive salary + meaningful equity
• No red tape - rapid iteration and shipping encouraged