Senior Machine Learning Engineer [33222]
Role details
Job location
Tech stack
Job description
EThis is a hands-on, high-ownership role for ML engineers who want to build production models that actually ship, and perform under real-world constraints. As a Founding Senior Machine Learning Engineer at The Company, you'll work across the ML stack to power human-like voice agents that handle millions of real-time phone conversations
.You'll fine-tune large language models and audio models, evaluate them with rigorous benchmarks (and human feedback), and deploy them into latency-sensitive, high-traffic systems. You'll own model performance end-to-end-from training pipelines to post-deployment monitoring-and shape our ML strategy alongside the founding team
.If you're excited by hard technical challenges, fast iteration, and the opportunity to define how voice AI works at scale, this role is a rare chance to do it from the ground up, * ESTrain & Tune Models - Fine-tune LLMs and audio models to maximize speed, accuracy, and production-readiness-pushing the frontier of real-time AI voice experience
- s.Benchmark & Evaluate - Build datasets, define rigorous metrics, and measure model performance across high-impact voice AI tasks to guide developmen
- t.Deploy to Production - Work closely with engineering to ship models, monitor them in the wild, and ensure they stay fast, reliable, and accurate at scal
- e.Run Human Evaluations - Build scalable pipelines to collect structured human feedback, benchmark subjective quality, and inform model iteration
- s.Level Up Infrastructure - Design and maintain the ML infrastructure needed for fast experimentation, robust training, and continuous deploymen, * OUML Engineer with Real-World Experience - You've trained and shipped models in production. Bonus if you've worked with LLMs or audio model
Requirements
- s.Fluent in Modern ML Stack - You know your way around Python, PyTorch, and today's ML tools-from training pipelines to evaluation benchmark
- s.Execution-Oriented - You move fast, take ownership, and focus on solving real problems over perfect one
- s.Startup-Ready - You're adaptable, resilient, and energized by ambiguity and fast-changing prioritie
- s.Clear Communicator & Team Player - You collaborate well across functions and push decisions forwar
Benefits & conditions
- LSCash: $225,000 - $325,000 base sala
- ryEquity: Offers Equi
- tyLocation: Redwood City, CA,
- USUS Visas: The Company is open to sponsoring work authorization for qualified candidates, including H1B/H-1B, TN, L-1, E-3, F-1 (OPT/CPT), and O-1 visa
s.OTHER BENEFI
- TS100% coverage for medical, dental, and vision insuran
- ce$70/day DoorDash credit for unlimited breakfast, lunch, dinner, and snac
- ks$200/month wellness reimbursement (gym, fitness classes, etc
- .)$300/month commuter reimbursement (gas, Caltrain, etc
- .)$75/month phone bill reimburseme
- nt$50/month internet reimburseme
ntCOMPENSATION PHILOSOP
- HYBest Offer Upfront: Choose from three cash-equity balance options, no negotiation neede
- d.Top 1% Talent: Above-market pay (top 5 percentile) to attract high performer
- s.High Ownership: Small teams, >$1M revenue/employee, and significant equit
- y.Performance-Based: Offers tied to interview performance, not experience or past salarie
s.