Find your path to Peter
426 people in our graph share verified history with Peter — schools, employers, funds. One of them is your warm intro.
Mike ZakunlockedPeter: together at Cornell (2005–2010)
×9Peter: together at Cornell
×2Peter: together at Nomura Securities
About
Peter Greczner is CTO at Affinity. He has spent nearly 15 years working with early-stage companies in AdTech, FinTech, and Crypto, and was a founding engineer at Bread, where he led the engineering team prior to its $500M acquisition.
Founder at AffinityYC S23
Intro paths
YC
Peter went through Y Combinator (Summer 2023) — any YC alum in your network can reach them through the YC community.
GP
Their group partner at YC was Nicolas Dessaigne, General Partner at Y Combinator — the partner who ran Affinity's batch and knows the company first-hand. YC profile ↗
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In turn, Peter can intro founders to Affinity's investors below.
Affinity's investors · 8
8VCAustin · $100K – $50M checks · since 2026Advance Venture PartnersSan Francisco · $10M – $25M checks · since 2026Clocktower VenturesSanta Monica · $100K – $20M checksGreat Oaks Venture CapitalNew York · $50K – $500K checksMassMutual VenturesSpringfield · $500K – $5M checks · since 2026Menlo VenturesSan Francisco · $1M – $20M checks · since 2026Pear VCSan Francisco · $150K – $4M checksY CombinatorSan Francisco · $500K checks · since 2023
Co-founders at Affinity
FR
Faraz RanaFounder
Experience
- AffinityCo-Foundercurrent2023 — presentNew York, NY
- Ormatta LLCFoundercurrent2021 — presentNew York, United States
- Knights of DegenCo-Founder2021 — 2023New York, United States
- BreadDistinguished Engineer2020 — 2021
- BreadSenior Director Of Engineering2019 — 2020Greater New York City Area
- BreadSenior Software Engineer, Platform Lead2014 — 2019Greater New York City Area
- Rubicon ProjectSoftware Engineer2014Greater New York City Area
- iSocketSoftware Engineer2014Greater New York City Area
- Spruce MediaEngineer2013 — 2014New York, NY
- Castle Ridge MediaCTO/Head Engineer2012 — 2013Brooklyn, NY
- Nomura SecuritiesTechnology Analyst2010 — 2012
- Raytheon Missile SystemsSenior Engineering Intern - Autopilot Division2009
- Corning IncElectrical Engineering Intern2008
- Campus DestinationsSoftware Architect2007 — 2008
Skills & more
OpenAI APIAnthropic ClaudeOpenAI CodexCursor AIReact NativeNext.jsReact.jsJava12Ruby on Rails2Amazon Web Services (AWS)1Ruby1SQL4
+12 more
PerlC++LinuxPythonCEclipseC#SubversionVBAGitJavaScriptjQueryFrom Peter's professional profile.
Frequently asked questions
- Who is Peter Greczner?
- Peter Greczner is CTO at Affinity. He has spent nearly 15 years working with early-stage companies in AdTech, FinTech, and Crypto, and was a founding engineer at Bread, where he led the engineering team prior to its $500M acquisition.
- Where does Peter Greczner work?
- Peter Greczner is Founder of Affinity.
- What companies did Peter Greczner found?
- Peter Greczner founded Affinity.
- Where did Peter Greczner go to school?
- Peter Greczner studied at Cornell University (Masters, Electrical and Computer Engineering); Cornell University (Bachelors of Science, Electrical and Computer Engineering).
Founder mafias
Y Combinator mafia10,230
Also came through, then founded or led a company.
Sam AltmanPresidentFounded Tools for Humanity +3Garry TanPresident & CEOFounded Y Combinator +1Jessica LivingstonCo-founderFounded Y CombinatorAlexis OhanianPartnerFounded RedditFred EhrsamYC Summer 2012Founded Nudge +1Matt HuangYC Winter 2011Founded Paradigm +1
+ 10,223 more
Cornell mafia535
Also came through, then founded or led a company.
John ZimmerBSFounded LyftDavid SteinbergBAFounded Restorbio +3Hanson S. Gifford, IIIBSMEFounded Miramar Labs +3Emin Gun SirerAssociate ProfessorFounded Ava Labs +3Uri LopatinBAFounded Assemblybio +2Aniq RahmanB.S.Founded Ucmdigitalhealth +2
+ 528 more
Rubicon Project mafia6
Also came through, then founded or led a company.
Same school
Also attended Cornell University1,410
Jenny LeeSenior Managing Partner at Granite AsiaNeeraj AgrawalGeneral Partner at Battery VenturesJohn ZimmerCo-founder of LyftMichelle FernandesInvestor at Index VenturesMike ZakInvestor at CRV (Charles River Ventures)Micah RosenbloomGeneral Partner at Founder Collective
+ 1,404 more
Shared employers
Also worked at Bread8
Todd KimmelManaging Partner at Electric Feel Ventures LlcFranco DanesiSenior Partner at Molten VenturesDavid Correa OrozcoFounder at VersiveEric LiFounder at VersiveFaraz RanaFounder at AffinityDaniel SimonFounder at Coast
+ 2 more
Also worked at Rubicon Project11
Raj KapoorCo-founder and Managing Partner at Climactic, a climate tech venture firmChad LegerCFO & Operating Partner at BrandProject CapitalMark LinaoGeneral Partner at ProgressionJoanna BurtonInvestor & Advisor at The 98David HorowitzPartner at Cerity Partners VenturesMatthew LinkousFounder at Triplit
+ 5 more
Also worked at iSocket5
Also worked at Nomura Securities256
Aftab MathurManaging Director at Temasek at Golden Gate VenturesClare McCartney BeerCOO & Managing Director at Burda Principal InvestmentsThomas JuvinManaging Director Europe at Burda Principal InvestmentsJessica WangFP&A Manager at March Capital PartnersGustavo González de la PeñaAnalyst at Inveready Technology Investment GroupSercan OzcanPartner, Finance & Operations at AlleyCorp
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+ 250 more