Staff Machine Learning Engineer, Merchants
Core
Building AI/ML systems (including LLMs) to identify, understand, and surface relevant merchants to improve shopping discovery and brand affinity on Pinterest.
Role type
Staff Machine Learning Engineer (Merchant/Commerce)
Builds
LLM-powered systems for merchant content enrichment, attribute extraction, entity resolution, and quality signals for retrieval and ranking.
Domain
E-commerce / Recommendation Systems / Generative AI
Deliverable
production ML models
Required skills
LLM application development, evaluation and measurement strategies, systems design for scale and reliability, cross-functional technical leadership, end-to-end ML delivery, experimentation design
Preferred skills
Experience in recommendation, ranking, or commerce domains, mentorship of engineering teams
Technologies
LLMs, GenAI frameworks, Python, ML infrastructure tools
Responsibilities
Lead 0→1 ML/LLM initiatives from problem framing to production rollout, establish evaluation practices and golden datasets, design systems with guardrails and observability, partner with product and platform teams to align on goals, drive experimentation and error analysis, mentor team members on technical design and production readiness
Seniority
Staff, high-agency IC with strategic roadmap ownership
