Artificial intelligence
10 Scale AI machine learning engineers
These ten Scale AI machine learning engineers, all still at the company, have held machine learning engineer roles there, according to their profiles. A reader can learn what machine learning engineering at Scale AI involves from people who have done it.
Professionals to explore
01—10Alex R.
LinkedInExperience: Staff Machine Learning Engineer · Scale AI
Staff Machine Learning Engineer at Scale AI since November 2025, based in Santa Monica; the role listing names large language model training, reinforcement learning and inference. Former AI Engineer at Modern Treasury (2025), Senior Machine Learning Engineer at SHEIN Technology LLC (2023–2025) and Senior ML Engineer (Trust & Safety) at Tinder (2019–2023).
Ethan Le
LinkedInExperience: Machine Learning Engineer · Scale AI
Machine Learning Engineer at Scale AI since November 2025 in San Francisco; the role listing describes building AI agents for the public sector, and the profile notes interests in natural language processing, computer vision and generative machine learning. Former Machine Learning Engineer at Dragonfruit AI (2023–2025).
George Pu
LinkedInExperience: Machine Learning Engineer · Scale AI
Machine Learning Engineer at Scale AI since July 2023 in San Francisco, in the Engineering and Technical department, after a Machine Learning Research Engineer role at Scale AI in early 2023. Former Machine Learning Researcher at UCLA-NLP (2022–2023) and Software Engineer at Convoy Inc (2021 and 2022).
Isabel Zhong
LinkedInExperience: Machine Learning Engineer · Scale AI
Machine Learning Engineer at Scale AI since August 2024 in San Francisco, in the Engineering and Technical department. Former Xenobot Lab Undergraduate Researcher at Northwestern University (2023–2024), Software Engineering Intern at Amazon Fulfillment Technologies & Robotics (2023) and Software Lead at Northwestern Formula Racing (2022–2023).
Lyson Njoroge
LinkedInExperience: Machine Learning Engineer · Scale AI
Machine Learning Engineer at Scale AI since November 2025, based in the United Kingdom; the profile describes building AI agents and other foundation model based systems at Scale AI. Also lists Engineering Associate, Applied AI at Goldman Sachs (since 2024) and Engineering Analyst, Applied AI at Goldman Sachs (2021–2024).
Martin Pollack
LinkedInExperience: Machine Learning Engineer · Scale AI
Machine Learning Engineer at Scale AI since November 2025; the profile says he performs applied machine learning research to support building AI solutions and products for external clients, while also an AI Researcher at Stanford University School of Medicine. Former AI Engineer at Microsoft (2025) and Senior Data Scientist at IBM (2024–2025).
Penn J.
LinkedInExperience: Machine Learning Engineer · Scale AI
Machine Learning Engineer at Scale AI since April 2023 in San Francisco, with a profile headline of Staff Machine Learning Research Engineer at Scale. Former Senior Machine Learning Engineer at ZestyAI (2021–2022), Machine Learning Engineer at ZestyAI (2019–2021) and Machine Learning Engineer at SVXR (2017–2019).
Rodney S. Lafuente Mercado
LinkedInExperience: Machine Learning Engineer · Scale AI
Machine Learning Engineer at Scale AI since February 2026 in New York City; the role listing names Public Sector ML and LLM Evaluations. Former Associate Staff at MIT Lincoln Laboratory (2025–2026) and Assistant Staff at MIT Lincoln Laboratory (2023–2025), per the work history on the profile.
Sachin Chanchani
LinkedInExperience: Sr. Machine Learning Engineer · Scale AI
Sr. Machine Learning Engineer at Scale AI since August 2026 and former Machine Learning Engineer at Scale AI (2025–2026), based in the Washington DC-Baltimore area; the profile headline reads Evals @ Scale AI. Former Research Engineer at Johns Hopkins Applied Physics Laboratory (2023–2025).
Trevor Howarth
LinkedInExperience: Machine Learning Engineer · Scale AI
Former Machine Learning Engineer at Scale AI (2022–2024) and Staff Machine Learning Engineer/Engineering Manager (2024–2025), and Director of Machine Learning, Public Sector at Scale AI since December 2025; the profile also lists Head of Machine Learning, Public Sector (2025–2026). Former Senior Research Engineer at Luna Solutions (2021–2022).
Choose the right perspective
Match the person's area, such as public sector work, model evaluation, agents or model training, to your question, and check their level and how long they have been at Scale AI. Their earlier employers can also help you find someone who has worked on problems like yours.
Questions to take into the conversation
- 01How do machine learning engineers at Scale AI build and evaluate AI agents for enterprise and government clients?
- 02What makes a good evaluation for a large language model used in a high-stakes setting?
- 03How should a buyer scope an applied machine learning project with an outside AI partner?
Reaching Scale AI machine learning engineers
How can I contact one of these Scale AI machine learning engineers?
Pick one of the 10 people on this page and choose "Book a paid call", or describe your project to find others. You offer a fee for a 15-minute call or a written answer, Instant Expert finds the person's work email and sends the invitation, and they decide whether to accept. The list covers 1 company: Scale AI, based on profile data retrieved on October 8, 2026. Being listed here doesn't mean someone has agreed to take calls.
How much does it cost to reach Scale AI machine learning engineers?
You choose the offer, starting at $5 per person. It includes Instant Expert's 20% fee, so an offer that pays the person $100 costs you $125. You're charged only when the person books the call or sends the answer.
What if they don't reply?
You pay nothing. Instant Expert sends follow-up reminders, and if the person hasn't booked or answered within 7 days, the request expires and any hold on your card is released. You can invite several of the 10 people on this list at once and cap your total spend, so you pay only for the ones who accept.
Can an AI agent ask one of these Scale AI machine learning engineers a question?
Yes. An agent with a USDC wallet on Base can ask one question without an Instant Expert account. It names the person, for example by the LinkedIn URL on this page, and pays per ask over x402 (HTTP 402). The person answers in writing or by voice note, and if nobody answers within 7 days, the payment goes back to the wallet automatically. x402 docs
About this directory
This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot and may describe past or present roles. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.
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