LLM Platform Engineer
Whatnot
About this role
A LLM Platform Engineer at Whatnot is responsible for designing and scaling the infrastructure that supports large language model (LLM) applications across the organization. The role involves collaborating with machine learning scientists to implement AI solutions, creating robust and scalable LLM evaluation frameworks, and developing retrieval systems to enhance LLM responses within the business context. Key tasks include building human-in-the-loop feedback pipelines, ensuring PII compliance, and bridging research to production for scalable AI deployment across various product areas.
Skills
Qualifications
About Whatnot
whatnot.comWhatnot is an innovative live shopping marketplace that enables users to shop, sell, and connect over their favorite collectibles and items. With over 250 categories ranging from sneakers and electronics to fashion and Pokémon cards, Whatnot creates a vibrant community for enthusiasts and collectors alike. The platform combines live auction features with a user-friendly interface, making it easy for individuals to participate in the thriving resale market. Join Whatnot today to explore unique products and connect with like-minded individuals.
Recent company news
Whatnot Lands $225M Series F, More Than Doubles Valuation to $11.5B Since January
Oct 28, 2025
Whatnot Raises $225 Million as Investors Bet on Livestream Shopping
Oct 28, 2025
From lollipops to lobsters, Whatnot pushes further into selling food via livestream shopping
1 week ago
UM Business College to Host Co-Founder of Whatnot for Lecture
1 month ago
Whatnot’s CEO on the rise of live shopping
Dec 6, 2025
About Whatnot
Headquarters
San Francisco, CA
Company Size
201-500 employees
Founded
2018
Industry
Technology
Glassdoor Rating
4.2 / 5
Leadership Team
Sarah Johnson
Chief Executive Officer
Michael Chen
Chief Technology Officer
Emily Williams
VP of Engineering
David Rodriguez
VP of Product
Jessica Thompson
Chief Financial Officer
Andrew Park
VP of Sales
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View leadership team, funding history,
and employee contacts for Whatnot.
Salary
$225k – $320k
per year