About
JJ Maxwell previously served as CEO of Double Finance and CTO of Liftoff Influence, and co-founded Jetfuel, which was acquired by Liftoff in 2021. He has also worked at Facebook Messenger.
Founder at PolishedYC W24
Intro paths
YC
JJ went through Y Combinator (Winter 2024) — any YC alum in your network can reach them through the YC community.
GP
Their group partner at YC was Garry Tan, President & CEO of Y Combinator — the partner who ran Polished's batch and knows the company first-hand. YC profile ↗
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In turn, JJ can intro founders to Polished's investors below.
Polished's investors · 1
Co-founders at Polished
MW
Mark WaiFounder
Experience
- DoubleCEO2023 — 2025San Francisco, CA
- Liftoff MobileCTO - Liftoff Influence2021 — 2023San Francisco Bay Area
- JetfuelCo-Founder2018 — 2021San Francisco Bay Area
- Real LabsCo-Founder2016 — 2018San Francisco Bay Area
- RemindData Scientist2015 — 2016San Francisco Bay Area
- FacebookData Scientist2013 — 2015Menlo Park
Frequently asked questions
- Who is JJ Maxwell?
- JJ Maxwell previously served as CEO of Double Finance and CTO of Liftoff Influence, and co-founded Jetfuel, which was acquired by Liftoff in 2021. He has also worked at Facebook Messenger.
- Where does JJ Maxwell work?
- JJ Maxwell is Founder of Polished.
- What companies did JJ Maxwell found?
- JJ Maxwell founded Polished.
- Where did JJ Maxwell go to school?
- JJ Maxwell studied at University of Waterloo (Engineering, Mechatronics); Lakefield College School (High School).
Founder mafias
Y Combinator mafia8,773
Also came through, then founded or led a company.
Sam AltmanPresidentFounded Tools for Humanity +3Jessica LivingstonCo-founderFounded Y CombinatorAlexis OhanianYC Summer 2005Founded RedditFred EhrsamYC Summer 2012Founded Nudge +1Matt HuangYC Winter 2011Founded HotspotsTrae StephensYC Winter 2022Founded Pursuit +1
+ 8,766 more
University of Waterloo mafia200
Also came through, then founded or led a company.
Apoorva MehtaBAScFounded InstacartZach WaterfieldComputer EngineeringFounded Zettlor +1Peter CarresciaBMathFounded GoConfirm +1Eric BlondeelDoctor of Philosophy - PhDFounded Samos Insurance +1Oleg KostourHonours Bachelor of Architectural StudiesFounded AtlasGrid +1Anton KrutianskyBachelor of Applied Science (B.A.Sc.)Founded AtlasGrid +1
+ 193 more
Remind mafia3
Also came through, then founded or led a company.
Same school
Also attended University of Waterloo359
Chamath PalihapitiyaFounder & CEO of Social CapitalApoorva MehtaFounder of Instacart; founder of Cloud Health SystemsAchintya ChaudhariInvestor at LightbankKarim GillaniGeneral Partner at Luge CapitalRohan MongaInvestment Associate at Luge CapitalAndrew MiklasGeneral Partner at Y Combinator
+ 353 more
