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
- $120 - $170
- New York, NY, US / San Francisco, CA, US