Fundraising Fox

Thomas Boser

Founder

Founder/CTO at hiloop

San Francisco Bay Area

Foundedhiloop · YC

About

Founder and CTO of hiloop, which builds snapshottable, forkable compute infrastructure with built-in observability for AI agents running and verifying experiments. He previously worked as an engineer at Reducto, a founding engineer at Crosswise, a senior ML engineer at Discord, and in ML roles at Sentropy and SoFi.

Founder/CTO at hiloopYC S26

Intro paths

YC

Thomas went through Y Combinator (Summer 2026) — any YC alum in your network can reach them through the YC community.

GP

Their group partner at YC was Ankit Gupta, General Partner at Y Combinator — the partner who ran hiloop's batch and knows the company first-hand. YC profile ↗

→

In turn, Thomas can intro founders to hiloop's investors below.

hiloop's investors · 1

Y CombinatorSan Francisco · $500K checks · since 2026

Co-founders at hiloop

KBKaran Brar
Karan BrarFounder/CEO

Experience

  1. hiloopCo-founder/CTOcurrent2026 — presentSan Francisco, California, United States
  2. ReductoEngineer2026San Francisco, CA
  3. Crosswise Risk ManagementFounding Engineer2024 — 2026San Francisco, California, United States
  4. DiscordSenior Software Engineer, Machine Learning2023 — 2024San Francisco, California, United States
  5. DiscordSoftware Engineer, Machine Learning2021 — 2023San Francisco, California, United States
  6. Sentropy TechnologiesData Scientist - NLP2020 — 2021San Francisco, California, United States
  7. SoFiData Scientist, Modeler2018 — 2020San Francisco Bay Area
  8. Berkeley LabComputer Systems Intern2017Berkeley, California
  9. UCSC Genomics InstituteUndegraduate Researcher2017San Francisco Bay Area
  10. UC Santa CruzJunior Bioinformatics Analyst2015 — 2016Santa Cruz, California
  11. IPMC CNRS - University Nice Sophia AntipolisLab Intern2014Sofia, France
  12. Hanabi JudoJudo Instructor2012 — 2014Albany, California
  13. Bear Valley ResortsSki Instructor2011 — 2014Bear Valley, CA

Skills & more

PythonMachine Learning9Data Analysis16Algorithms13Programming9Pipelines6Troubleshooting3Computer Science2Research1Unix12Bash8Java6
+11 moreSQLC++CMicrosoft ExcelCommunicationProblem SolvingRegular ExpressionsDeep LearningData ScienceArtificial Neural NetworksPython (Programming Language)

Languages English · French · Spanish · Swiss-German

From Thomas's professional profile.

Frequently asked questions

Who is Thomas Boser?
Founder and CTO of hiloop, which builds snapshottable, forkable compute infrastructure with built-in observability for AI agents running and verifying experiments. He previously worked as an engineer at Reducto, a founding engineer at Crosswise, a senior ML engineer at Discord, and in ML roles at Sentropy and SoFi.
Where does Thomas Boser work?
Thomas Boser is Founder/CTO of hiloop.
What companies did Thomas Boser found?
Thomas Boser founded hiloop.
Where did Thomas Boser go to school?
Thomas Boser studied at University of California, Santa Cruz (Bachelor of Science (BS), Computer Science).

Founder mafias

Y Combinator mafia9,496

Also came through, then founded or led a company.

Sam AltmanPresidentFounded Tools for Humanity +3Garry TanPresident & CEOFounded Y Combinator +1Jessica LivingstonCo-founderFounded Y CombinatorAlexis OhanianYC Summer 2005Founded RedditFred EhrsamYC Summer 2012Founded Nudge +1Matt HuangYC Winter 2011Founded Hotspots

+ 9,489 more

University of California, Santa Cruz mafia29

Also came through, then founded or led a company.

Daniela AmodeiBachelor of Arts (B.A.)Founded AnthropicTim ThimmaiahBusiness ManagementFounded Toneden +1Mike CagneyMSFounded Figure Markets +1Josh NicholsonBachelor of Science (B.S.)Founded Scite +1Michael JenningsNetwork Engineering and MangementFounded BugcrowdThomas SparksEconomicsFounded Cryptoseal

+ 22 more

Discord mafia8

Also came through, then founded or led a company.

Jason LinInvestorFounded LifelikecapAmber AthertonHead of Growth (Communities)Founded ZyperMichael LinMachine Learning EngineerFounded VarianceKelly LuSoftware EngineerFounded OvereasyRishab JainDiscord PartnerFounded Prescience, Inc.Zay ChanceStaff Software EngineerFounded Chanceapp

+ 1 more

Reducto mafia5

Also came through, then founded or led a company.

Rishi SrihariProduct EngineeringFounded OpennoteAbhi AryaengineeringFounded OpennoteVedant VyasGrowth EngineeringFounded OpennoteKaran BrarMachine Learning EngineerFounded hiloop

Same school

Also attended University of California, Santa Cruz105

Daniela AmodeiCo-founder & President of AnthropicNeha JewalikarDirector of Communications at Scale Venture PartnersChristine SamsAssistant Controller at Crosslink CapitalAnne FoorInvestor at Khosla VenturesNoor NijjerHead of Investor Relations at Sierra VenturesJohn BurkeCo-Founder, Managing Partner at PROOF

+ 99 more

Shared employers

Also worked at hiloop1

Karan BrarFounder/CEO at hiloop

Also worked at Reducto7

Jennifer LiPartner at Andreessen HorowitzAdit AbrahamFounder at ReductoRaunak ChowdhuriFounder at ReductoRishi SrihariFounder at OpennoteAbhi AryaCo-Founder and CTO at OpennoteVedant VyasFounder at Opennote

+ 1 more

Also worked at Crosswise Risk Management1

Alexander StatnikovInvestor at AV8 Ventures

Also worked at Sentropy Technologies1

Jason LinCo-founder and General Partner at Lifelike Capital