Where does Jack O'Brien work?

Jack O'Brien is Founder of Subconscious.

What companies did Jack O'Brien found?

Jack O'Brien founded Subconscious, Subconscious.

Where did Jack O'Brien go to school?

Jack O'Brien studied at Princeton University (Bachelor of Science in Engineering, Department of Computer Science); MIT Sloan School of Management (Master of Business Administration - MBA); Massachusetts Institute of Technology (Master of Business Administration - MBA).

Jack O'Brien

Founder

Founder at Subconscious

Boston, Massachusetts, United States

FoundedSubconscious Subconscious

About

Jack O'Brien is the Co-Founder and CEO of Subconscious, which develops infrastructure to support AI agents. He was previously a founder of two companies that reached exits, and worked as a software engineer and tech lead at Google.

Founder at Subconscious

Intro paths

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In turn, Jack can intro founders to Subconscious's investors below.

Subconscious's investors · 7

BetaworksNew York · $250K – $750K checks · since 2022 Entrepreneur FirstBengaluru · $1M – $7M checks Foothill VenturesLos Altos · $100K – $10M checks MassVenturesWaltham · $250K – $500K checks Oakseed Ventures Protocol LabsSan Francisco · since 2022 YourNest Venture CapitalGurgaon · $500K – $17M checks

Founder at Subconscious

Intro paths

→

In turn, Jack can intro founders to Subconscious's investors below.

Subconscious's investors · 5

BetaworksNew York · $250K – $750K checks · since 2022 Entrepreneur FirstBengaluru · $1M – $7M checks Geek VenturesNew York · $200K – $800K checks Protocol LabsSan Francisco · since 2022 YourNest Venture CapitalGurgaon · $500K – $17M checks

Experience

SubconsciousCo-Founder & CEOcurrent2025 — presentCambridge, Massachusetts, United States
AtomicFounder in Residence2024
Sandhill MarketsCTO2022 — 2023New York, New York, United States
Sandhill MarketsDirector of Engineering2022New York, New York, United States
OnePagerCo-Founder & CTO2020 — 2022New York, New York, United States
GoogleSoftware Engineer & Tech Lead2018 — 2021New York, New York, United States
IBMSoftware Engineer & Consultant2017 — 2018New York City Metropolitan Area
Tiger Bed Rentals, LLCCo-Founder2016 — 2018

Skills & more

Computer Science9Entrepreneurship3Product Management3Agile Methodologies3Consulting1Test Driven Development2Software Development2TypeScript1Leadership9Public Speaking7Teamwork5Design Thinking3

+12 more

BlockchainJavaScriptNode.jsPythonJavaDockerAngular 5Hyperledger FabricHyperledger ComposerSQLReact.jsGoogle Cloud Platform (GCP)

Languages English

Heartsaver First Aid CPR AED — American Heart Association
Docker Essentials: Extend Your Apps With Containers — IBM
IBM Design Thinking Practitioner — IBM
IBM Blockchain Foundation Developer — IBM
IBM Blockchain Consulting — IBM
Cognitive Practitioner — IBM

From Jack's professional profile.

Frequently asked questions

Who is Jack O'Brien?: Jack O'Brien is the Co-Founder and CEO of Subconscious, which develops infrastructure to support AI agents. He was previously a founder of two companies that reached exits, and worked as a software engineer and tech lead at Google.
Where does Jack O'Brien work?: Jack O'Brien is Founder of Subconscious.
What companies did Jack O'Brien found?: Jack O'Brien founded Subconscious, Subconscious.
Where did Jack O'Brien go to school?: Jack O'Brien studied at Princeton University (Bachelor of Science in Engineering, Department of Computer Science); MIT Sloan School of Management (Master of Business Administration - MBA); Massachusetts Institute of Technology (Master of Business Administration - MBA).

Same school

Also attended Princeton University774

Fabrice GrindaCo-founder & Managing Partner at FJ Labs Ryan SheaCo-founder of Blockstack (Stacks)Dario AmodeiCo-founder & CEO of Anthropic Fei-Fei LiCo-founder & CEO of World Labs; Sequoia Professor of Computer Science at Stanford KJ SidberryInvestor at GV (Google Ventures)AndrewAdvisor at Clear Ventures

+ 768 more

Also attended MIT Sloan School of Management616

Doug LeonePartner at Sequoia Capital; former Global Managing Partner Hemant TanejaCEO & Managing Director of General Catalyst Brad FeldCo-founder of Foundry and Techstars Chris MorrisProcess Specialist, Exit Readiness at Mayfair Equity Partners BirgitteInvestor at Investinor OlaInvestor at Investinor

+ 610 more

Also attended Massachusetts Institute of Technology1,678

Fred WilsonCo-founder & Partner at Union Square Ventures Elad GilSolo general partner investing through Gil Capital Aileen LeeFounder & Managing Partner of Cowboy Ventures Hemant TanejaCEO & Managing Director of General Catalyst Nat FriedmanCo-lead of Meta Superintelligence Labs; co-founder of NFDG Brad FeldCo-founder of Foundry and Techstars

+ 1,672 more

Shared employers

Also worked at Subconscious1

Stacy SwiderVice President, Investments at MassVentures

Also worked at Atomic47

Jack AbrahamFounder, CEO & Managing Partner of Atomic Chester NgGeneral Partner at Atomic Cici TongAssistant Controller at Playground Global Matt ChengInvestor at NZVC Tuan HoPartner at Xfund Christine KeungPartner at J2 Ventures

+ 41 more

Also worked at Sandhill Markets1

Kobi ShkuriInvestment Committee at eSeed

Also worked at Google1,976

Ron ConwayFounder of SV Angel Elad GilSolo general partner investing through Gil Capital Kai-Fu LeeChairman of Sinovation Ventures and CEO of 01.AI Brian SingermanCo-founder of GPx; Partner Emeritus at Founders Fund Jess LeePartner and Chief Product Officer at Sequoia Capital Tomasz TunguzFounder & General Partner at Theory Ventures

+ 1,970 more