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Founding ML Engineer – Real-Time Voice AI
Location: San Francisco, CA – On-site
Seniority: 2–7 years in ML engineering; hands-on experience with real-time or interactive ML systems
Salary: $175K–$250K + 1–2% Equity
Visa Sponsorship: Available for U.S.-based candidates
Hiring: 1 candidate

About the Role:
Join an early-stage AI startup redefining human-computer interaction through emotionally intelligent voice interfaces. You’ll be a founding ML engineer responsible for designing and scaling the real-time ML infrastructure powering applications in therapy, coaching, gaming, and companion AI.

Key Responsibilities:

  • Develop and optimize inference pipelines for ultra-low latency, real-time ML systems

  • Build emotionally expressive voice models responding naturally to human input

  • Make architectural decisions on ML infrastructure and pipelines

  • Collaborate closely with founders on product shaping, infrastructure, and customer feedback

  • Contribute directly to the core ML systems defining the user experience across web and mobile

Ideal Candidate:

  • Deep experience with ML frameworks: PyTorch, Transformers, CUDA

  • Expertise in real-time or streaming ML systems; inference optimization a must

  • Experience with speech, TTS, emotion, or prosody modeling

  • Startup DNA: comfort in early-stage environments, working closely with founders

  • Passion for conversational AI and real-time user experiences

  • Contributions to open-source projects encouraged

Traits to Avoid:

  • Only exploring opportunities without active interest in voice AI

  • Entirely big-tech background with no startup/hustle exposure

  • Overloaded certifications or lack of hands-on experience

  • Unwillingness to relocate or start within one month

Why Join:

  • Shape the ML foundation of a high-impact consumer AI product

  • Work with top-tier technical founders in a zero-bureaucracy environment

  • Access to large consumer AI clients and early traction

  • Small, collaborative team with direct influence on product and architecture

About the Company:
This startup powers voice companions and agents with memory and emotional intelligence. The team tackles cutting-edge challenges in scaling, latency, emotion understanding, context management, and multi-user voice experiences.

Team Size: 4 employees
Industry: AI, Software Development, Gaming
Founded: 2024

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