
Staff Machine Learning Engineer
Playlab
full-time
Posted on:
Location Type: Remote
Location: United States
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Salary
💰 $190,000 - $250,000 per year
Job Level
Tech Stack
About the role
- Design and build evaluation systems that assess educational AI quality across thousands of conversations - from learning outcomes to bias detection to curriculum alignment
- Build ML systems that enable self-improving app creation - learning from high-quality apps on the platform to automatically scaffold new applications for educators
- Design and prototype downloadable, on-device AI models that work without internet connectivity - critical for privacy and global accessibility
- Develop systems that enable dynamic, fluid interfaces adapting to learning moments - transitioning seamlessly from chat to writing editor to interactive physics simulation as needed
- Build content moderation and safety systems designed specifically for educational discourse
- Implement agentic AI systems that enable educators to create goal-directed applications (e.g., "help students through this project over 2 weeks")
- Build sophisticated RAG systems that integrate diverse educational content with semantic search and knowledge graphs
Requirements
- 7+ years building and deploying ML systems in production, with recent experience in generative AI and LLMs
- Strong understanding of ML fundamentals, model fine-tuning, and evaluation methodologies
- Experience building production AI systems - you understand latency, cost optimization, and evaluation challenges
- Proficient in Python and ML frameworks (PyTorch, TensorFlow, HuggingFace, etc.)
- Thrive in high-agency, high collaboration cultures
Benefits
- Professional development
- Remote work options
Applicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills & Tools
machine learninggenerative AIlarge language modelsmodel fine-tuningevaluation methodologiescontent moderation systemsAI model developmentdynamic interfacessemantic searchknowledge graphs
Soft Skills
collaborationhigh-agency culture