Machine Learning Engineer

Zoom • Seattle, WA

4d • $206,600 - $451,800

About The Position

Zoom is seeking a Machine Learning Engineer to join its Agentic Retrieval team within the GenAI Engineering organization. The team builds a multi-tenant, permission-aware retrieval platform across distributed systems, machine learning, and large language models. Its systems support search and answer generation across meetings, chat, documents, and third-party enterprise applications through a layered API architecture that includes keyword search, natural-language search, and agentic RAG-based answer generation.

In this role, you will design and build core retrieval and reasoning systems for Zoom AI Companion. These systems enable AI agents to search, reason over, and act on enterprise knowledge to provide high-quality, trustworthy, and actionable answers at scale.

Requirements

• Master’s degree or higher in Computer Science, Artificial Intelligence, Machine Learning, Distributed Systems, or a related field.
• At least 5 years of experience in machine learning, search infrastructure, information retrieval, or distributed systems.
• Hands-on experience building and operating large-scale search or data platforms in production environments.
• Experience building or integrating RAG systems and LLM-based applications in production.
• Proficiency in one or more of Python, Go, Java, C#, or C++.
• Solid understanding of information retrieval fundamentals, including inverted indexes, ranking, embeddings, and hybrid retrieval.
• Strong system design skills, including reasoning about scale, reliability, latency, and cost trade-offs.

Responsibilities

• Design and implement scalable retrieval systems, including vector search, hybrid search using keywords, embeddings, and reranking, and structured query planning.
• Design and optimize Retrieval-Augmented Generation (RAG) pipelines for multi-step, tool-using AI agents.
• Develop ranking, relevance modeling, and evaluation frameworks to improve search quality and answer grounding.
• Build indexing pipelines that transform heterogeneous enterprise data into unified, retrieval-ready representations.
• Build entity extraction and natural language processing pipelines that support agentic reasoning over enterprise content.
• Partner with product, infrastructure, and applied research teams to deliver production-grade AI capabilities.

Benefits

• Zoom offers a benefits program with perks, benefits, and options intended to support physical, mental, emotional, and financial health, work-life balance, and community involvement. Specific benefits are not listed.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior