Jobs · Engineering · California

AI/ML Applied Engineer

Karumi (YC F25) · San Francisco, CA · 7 mo ago
On-siteEngineering$120–$170/hrFull-time

About the role

You'll work at the intersection of voice AI, browser automation, and large language models - creating agents that can listen, speak, navigate interfaces, and interact naturally with users in real-time.

Responsibilities

  • Build and optimize voice AI systems using speech-to-text and text-to-speech models
  • Design browser agents that navigate, understand, and interact with web applications
  • Implement browser automation with computer vision and DOM understanding
  • Engineer prompt systems and LLM workflows for consistent, intelligent behavior
  • Create evaluation frameworks to measure voice quality, agent accuracy, and user experience
  • Integrate multimodal AI - combining voice, vision, and language understanding
  • Build real-time AI pipelines where latency and reliability are critical
  • Manage the AI Infrastructure and take care of it
  • Maintain the AI System's performance in production environments
  • Debug complex AI behaviors and build observability tools
  • Develop software engineering fundamentals for production AI systems
  • Build autonomous agents or multi-step AI workflows
  • Understand computer vision for UI understanding and visual grounding
  • Fine-tune or train language models for specialized tasks
  • Develop real-time audio processing and streaming architectures

Requirements

  • Production experience with LLMs (OpenAI, Anthropic, or open-source models)
  • Hands-on work with speech AI (STT/TTS systems like Deepgram, ElevenLabs, Whisper)
  • Experience with browser automation (Playwright, Puppeteer, Selenium) or computer vision
  • Strong Python skills with async programming and real-time systems
  • Understanding of prompt engineering, retrieval systems, and agent frameworks
  • Ability to debug complex AI behaviors and build observability tools
  • Software engineering fundamentals for production AI systems
  • Experience building autonomous agents or multi-step AI workflows
  • Knowledge of computer vision for UI understanding and visual grounding
  • Fine-tuning or training language models for specialized tasks
  • Real-time audio processing and streaming architectures

Qualifications

  • Background in NLP, machine learning research, or AI systems

Skills

  • Python

Benefits

  • Meaningful equity stake in a backed, fast-growing company
  • Work on cutting-edge voice AI and browser agents in production
  • Shape how AI systems interact with users and software interfaces
  • Small team with direct impact on core product capabilities
  • Pay

    • $120 - $170

    Schedule

    • New York, NY, US / San Francisco, CA, US

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