Fundraising Fox

Alex Reyfman

Founder

Co-Founder & CEO at Tradewell Technologies

New York, New York, United States

FoundedTradewell Technologies

Find your path to Alex

1,065 people in our graph share verified history with Alex — schools, employers, funds. One of them is your warm intro.

Chris BischoffunlockedAlex: together at Goldman Sachs (2001–2003)
×6Alex: together at Barclays
Alex: together at Columbia University
×3Alex: together at Goldman Sachs

About

Alex Reyfman is Managing Director of Seaport Trading Technologies at Seaport Global Holdings LLC, where he leads teams of quants and developers building automated and hybrid market-making systems for credit derivatives (CDS) and corporate bond markets. His background includes systematic investment management at a hedge fund and a proprietary trading group, with experience in corporate credit, structured credit, and macro investing. He has directed research and portfolio management teams across areas including expected return strategies, front-office risk management, optimal execution, and front-office systems design.

Co-Founder & CEO at Tradewell Technologies

Intro paths

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In turn, Alex can intro founders to Tradewell Technologies's investors below.

Tradewell Technologies's investors · 3

Altari VenturesNew York · since 2020Raptor GroupMiami Beach · since 2020Tamiami AngelNaples · since 2020

Co-founders at Tradewell Technologies

MWMichael Wong
Michael WongCo-Founder & CTO

Experience

  1. Seaport Global Holdings LLCManaging Director, Seaport Trading Technologiescurrent2026 — present
  2. Tradewell Technologies IncChief Executive Officer2021 — 2026
  3. Stealth Fintech StartupChief Executive Officer2020 — 2021
  4. Squarepoint CapitalQuantitative Researcher2016 — 2020Greater New York City Area
  5. Barclays CapitalGlobal Head of Algorithmic Credit Trading2009 — 2016Greater New York City Area
  6. AQR CapitalVice President2005 — 2008
  7. Bear StearnsManaging Director2003 — 2005
  8. Goldman SachsVice President2000 — 2003
  9. Lehman BrothersVice President1997 — 2000

Skills & more

Derivatives17Hedge Funds13Fixed Income12Portfolio Management11Equities5Trading16Investments3Investment Banking4Risk Management3

From Alex's professional profile.

Frequently asked questions

Who is Alex Reyfman?
Alex Reyfman is Managing Director of Seaport Trading Technologies at Seaport Global Holdings LLC, where he leads teams of quants and developers building automated and hybrid market-making systems for credit derivatives (CDS) and corporate bond markets. His background includes systematic investment management at a hedge fund and a proprietary trading group, with experience in corporate credit, structured credit, and macro investing. He has directed research and portfolio management teams across areas including expected return strategies, front-office risk management, optimal execution, and front-office systems design.
Where does Alex Reyfman work?
Alex Reyfman is Co-Founder & CEO of Tradewell Technologies.
What companies did Alex Reyfman found?
Alex Reyfman founded Tradewell Technologies.
Where did Alex Reyfman go to school?
Alex Reyfman studied at University of Chicago (Ph D, Economics); Columbia University (BS, Economics).

Founder mafias

Goldman Sachs mafia527

Also came through, then founded or led a company.

Fred EhrsamTraderFounded Nudge +1Matt HuangSummer AnalystFounded Paradigm +1David VélezAnalystFounded Nubank +1Tarek MansourEquity Derivatives AnalystFounded KalshiColin WebbSummer AnalystFounded Saucepricing +1Jeppe RindomSummer InternshipFounded Pleo

+ 520 more

Columbia University mafia454

Also came through, then founded or led a company.

Ben HorowitzBAFounded OpswareChris DixonMaster of Arts - MAFounded Founder CollectiveKai-Fu LeeA.B.Founded 01Kevin M. SlawinB.A.Founded Phoenix SENOLYTIX +4Paul GrossingerMaster of Science; M.SFounded Gaingels +3Robin ChanB.A.Founded Goat Capital +2

+ 447 more

University of Chicago mafia191

Also came through, then founded or led a company.

Alexis BorisyBachelor's degreeFounded Foundation Medicine +2Bobby PittmanMaster's degreeFounded Oathafrica +2Sean HarperABFounded TransFS +2Bharat KilaruBachelor of Arts (BA)Founded Verano Health +2James Peyer, PhDBachelor of Arts (B.A.)Founded Rapalogix Health +2Matt KrisiloffFounded Preventive +1

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Barclays mafia120

Also came through, then founded or led a company.

Max AhrensSummer AnalystFounded Maihem +2Michael AndersonInvestment Banking Summer AnalystFounded Framework Labs +1Diego OppenheimerAssociateFounded Guardrails AI +1Aditya KandoiManagerFounded Redcliffe Lifetech +1John ZucchiSummer Legal AnalystFounded Agave +1Chang SheVice PresidentFounded Datapad +1

+ 113 more

Same school

Also attended University of Chicago529

Mark SusterManaging Partner at Upfront VenturesShardul ShahInvestor at Index VenturesSam BlackmanEntrepreneur in Residence at GV (Google Ventures)Clay FisherInvestor at Spark CapitalRolanda FuInvestor at Madrona Venture GroupJonas CiplickasPrincipal at Scale Venture Partners

+ 523 more

Also attended Columbia University1,123

Ben HorowitzCo-founder & General Partner at Andreessen HorowitzDoug LeonePartner at Sequoia Capital; former Global Managing PartnerChris DixonFounder & Managing Partner of a16z crypto at Andreessen HorowitzKai-Fu LeeChairman of Sinovation Ventures and CEO of 01.AIGabriella GiglioHR & Executive Talent at General CatalystScott BillerInvestor at GV (Google Ventures)

+ 1,117 more

Shared employers

Also worked at Seaport Global Holdings LLC4

Chris LuthVenture Partner at LMNT VenturesPen KingGeneral Partner at Innovating CapitalGreg HolmesManaging Director at Morgan Creek CapitalLuka MartinovicVice President at HGGC

Also worked at Squarepoint Capital12

Valentin MihovCEO at EnfluxAndrew BradyInvestor at Anza PartnersKevin ChengFounder at Decoda HealthTahmid JamalFounder at YonduSkandere SahliFounder at Sandra AIMattia MauroFounder at Excellence Learning

+ 6 more

Also worked at Barclays Capital430

David Clark GuillermoInvestments at Impact America FundThomas RubensInvestor at DN CapitalKerry WongHead of Investor Relations at Pantera CapitalJohn McCulloughInvestor at OpenView Venture PartnersVinnie McSweeneyInvestor at OpenView Venture PartnersDavid ParraData Quality & Project Engineering Manager at Inveready Technology Investment Group

+ 424 more

Also worked at Bear Stearns105

Joseph R. SavianoFounder and Managing Member at Dot CapitalEric HeilManaging Partner at Medical Excellence CapitalAndrew MausManaging Director, North America at AI CapitalBradley SloanManaging Partner at Questa CapitalDr. Sanjiv SobtiVenture Partner at Key1 CapitalMo KoyfmanFounder and General Partner at Shine Capital

+ 99 more