10 infrastructure engineering leaders
Head of Infrastructure Engineering, Head of Infrastructure and Director - Infrastructure Engineering are among the current titles held by these infrastructure engineering leaders, at software and AI companies including Ontra, Harvey and ServiceNow. A reader can learn how infrastructure engineering leaders approach their work from people who have held the role.
Professionals to explore
Ana Lemus
LinkedInExperience: Head of Infrastructure · Perplexity
Ana Lemus has been Head of Infrastructure at Perplexity since September 2026, based in the San Francisco Bay Area. Ana Lemus was Director of Engineering at Instacart from 2025 to 2026, Senior Engineering Manager at Instacart from 2022 to 2025 and Engineering Manager at Lyft from 2018 to 2022.
Bartholomew Fromm
LinkedInExperience: Group Vice President - Infrastructure · ServiceNow
Bartholomew Fromm has been Group Vice President - Infrastructure at ServiceNow since August 2026, based in Mountain View, California. Bartholomew Fromm was Sr. Director of Engineering - Platform at Snowflake from 2023 to 2026 and Sr. Director of Engineering - Production Engineering at Meta from 2022 to 2023.
Colin McGrath
LinkedInExperience: Head of Infrastructure · Baseten
Colin McGrath has been Head of Infrastructure at Baseten since April 2024, based in the San Francisco Bay Area. Colin McGrath was Member of Technical Staff at Netskope from 2019 to 2024, also lists Co-Founder at Pillar from 2020 to 2023, and was Blockchain Engineer at Lamden from 2018 to 2019.
James Collins
LinkedInExperience: Head of Infrastructure · Unstructured
James Collins has been Head of Infrastructure at Unstructured since July 2025, based in Truckee, California. James Collins was VP, Cloud Infrastructure and Operations at Splunk from 2018 to 2021, Sr Dir, Cloud Architecture at Splunk from 2017 to 2018 and Sr Director, Production Engineering at Yahoo in 2017.
Mukil Loganathan
LinkedInExperience: Head of Infrastructure · LangChain
Mukil Loganathan has been Head of Infrastructure at LangChain since October 2023, based in the San Francisco Bay Area. Mukil Loganathan was Software Engineering Team Lead at Robust Intelligence (now part of Cisco) from 2021 to 2023 and Software Engineer II at Verkada from 2020 to 2021.
Neil Pinto
LinkedInExperience: VP, Infrastructure Engineering · LinkedIn
Neil Pinto is a former VP, Infrastructure Engineering at LinkedIn, a role held from 2020 to 2025, based in the San Francisco Bay Area, and has been Member of the Board of Advisors at Clockwork Systems, Inc. since January 2026. Neil Pinto also held the title Vice President of Infrastructure at LinkedIn from 2015 to 2025, and describes growing the company's infrastructure to over 600,000 servers.
Ryan Arnold
LinkedInExperience: Director - Infrastructure Engineering · Lambda
Ryan Arnold has been Director - Infrastructure Engineering at Lambda since January 2026, based in the Greater Minneapolis-St. Paul Area, with a profile headline about leading AI compute, networking and storage. Ryan Arnold was Senior Engineering Manager - Infrastructure Engineering at Lambda from 2025 to 2026 and Engineering Director - System Technologies Group at Linaro from 2016 to 2024.
Sam Kalnins
LinkedInExperience: Head of Infrastructure & Platform · Applied Intuition
Sam Kalnins has been Head of Infrastructure & Platform at Applied Intuition since June 2025, based in Mountain View, California. Sam Kalnins was Head of Infrastructure at Applied Intuition from 2023 to 2025, Senior Engineering Manager at Apple from 2019 to 2022 and Senior Engineering Manager at Meta from 2018 to 2019.
Shanshan Song
LinkedInExperience: Head of Infrastructure · Harvey
Shanshan Song has been Head of Infrastructure at Harvey since May 2026, based in the San Francisco Bay Area. Shanshan Song was Senior Director of Engineering at Uber from 2023 to 2026, Senior R&D Director at VMware from 2021 to 2023 and R&D Director at VMware from 2018 to 2021, and describes building and evolving foundational platforms and having led more than 500 engineers.
Teo Cervantes
LinkedInExperience: Head of Infrastructure Engineering · Ontra
Teo Cervantes has been Head of Infrastructure Engineering at Ontra since August 2025, based in San Diego, California. Teo Cervantes was Head of Infrastructure Engineering, Wallet Payments & Commerce at Apple from 2020 to 2025, Sr. Manager, Platform Engineering at Apple from 2015 to 2018 and Sr. Manager, Infrastructure Architecture there from 2009 to 2014.
Choose the right perspective
Pick the person whose company stage and infrastructure scope sit closest to the decision you face, since an AI startup building its first compute platform and a large internet company running its own data centers face different questions. Check the start and end dates of each role to see how recent the experience is.
Questions to take into the conversation
- 01What did you focus on first when you took on your current infrastructure role, and what did you learn from it?
- 02How do you decide which parts of your infrastructure to build in house and which to buy from cloud or tooling vendors?
- 03How have you built and organized the infrastructure engineering team that reports to you?
Reaching infrastructure engineering leaders
How can I contact one of these infrastructure engineering leaders?
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 10 companies, including Perplexity, ServiceNow and Baseten, based on profile data retrieved on October 24, 2026. Being listed here doesn't mean someone has agreed to take calls.
How much does it cost to reach infrastructure engineering leaders?
You choose the offer, starting at $5 per person. The offer is what the person receives, and Instant Expert's fee is added on top, so a $100 offer costs you $125. The fee is 20% of what you pay. 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 infrastructure engineering leaders 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. Claude and ChatGPT can do the same through the Instant Expert connector: setup is at /docs/mcp for Claude and /docs/chatgpt for ChatGPT. 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; roles marked former had ended by then. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.
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