Lead AI Engineer
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Job Location:
New York City, NY - USA
Monthly Salary:
Not Disclosed
Posted on:
2 hours ago
Vacancies:
1 Vacancy
Job Summary
We are a YC-backed AI startup building the worlds most advanced real-time Speech AI coach used in online calls. Over the past six months weve grown from $100k to $5M ARR raised $2.5M from top-tier investors and assembled a world-class engineering team (ex-Google Nvidia Lyft Amazon) solving hard problems in voice ML and real-time infrastructure.
We are looking for a senior hands-on engineer to lead development of our real-time Voice AI Agent and internal ML toolkit. Youll own end-to-end systems across real-time audio applied ML and production deployment working directly with our CEO and CTO.
What Youll Do
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Build and scale our Real-Time Voice AI Agent (LiveKit/WebRTC):
streaming ASR/TTS VAD diarization state machines session management latency/QoS tuning. -
Develop our ML toolkit and ship models to prod (ASR TTS VAD embeddings speaker ID).
DSP ffmpeg/decoding ONNX/TensorRT reproducible pipelines. -
Contribute to backend when needed ( REST/OpenAPI Postgres/Supabase).
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Work on applied ML around LLMs: RAG function-calling routing safety A/B testing.
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Design reliable real-time systems: backpressure retries idempotency batching caching.
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Build data workflows: collection cleaning anonymization synthetic data offline/online eval.
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Own observability & SLOs: Prometheus Grafana Sentry tracing alerting.
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Deploy and operate infra: Docker GitHub Actions LiveKit Cloud Modal/AWS (GPU inference).
What We Value
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Ability to move fast and deliver (high-intensity startup mindset).
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Experience in big tech / strong VC-backed startups / Yandex / research labs.
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Any founder experience (even failed).
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Strong engineering fundamentals taste in product & design.
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Open-source contributions ML/algorithms background Kaggle/CF/olympiads are a plus.
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A public presence: blog Twitter engineering posts bonus points.
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Clear communication and ability to explain complex systems simply.
We do not hire from outsourcing firms Web3 or gambling.
What We Offer
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High-ownership role with direct impact on product and roadmap.
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Work directly with CEO/CTO every day.
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Competitive salary meaningful equity (company valued at $20M last year).
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Fully async remote any timezone (via Deel).
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US visa support (O-1).
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12 global offsites per year (last one Bali).
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Clear growth path: compensation increases with delivered projects.
Key Skills
- Administrative Skills
- Facilities Management
- Biotechnology
- Creative Production
- Design And Estimation
- Architecture
