Loren Siebert
InvestorAngel at Paradigm
Mill Valley, California
Writes $25K – $100K checks · typically $50K
Experience
- Self-employedPersonal Sabbaticalcurrent2025 — present
- ParadigmVP of Engineering2024 — 2025San Francisco Bay Area
- ParadigmHead of Engineering2023 — 2024San Francisco Bay Area
- ParadigmSenior Software Engineer2022 — 2023San Francisco, California, United States
- Akkadian VenturesVenture Partner2015 — 2022San Francisco Bay Area
- Citadel SecuritiesData Engineer2020 — 2022
- Primer.aiSoftware Engineer2018 — 2020San Francisco Bay Area
- MesosphereSoftware Engineer2016 — 2018San Francisco Bay Area
- LinguaStepFounder2007 — 2016
- GSASearch/Analytics Architect2009 — 2015
- University of California, BerkeleyLecturer, Arabic Language2006 — 2007
- National Security AgencyEngineering Intern1988 — 1992Ft. Meade, Maryland
Education
- The London School of Economics and Political Science (LSE)Technology Policy Research1994 — 1995
- The University of ManchesterMSc, Computer Science1993 — 1994
- University of Maryland Baltimore CountyBS, Computer Science1989 — 1993
Skills & more
Team LeadershipSoftware SystemsApache AirflowJavaApache MesosAmazon Web Services (AWS)KubernetesPython (Programming Language)SnowflakeElasticSearchAgile Methodologies18Ruby on Rails18
+12 more
Distributed SystemsAgile Project ManagementVenture CapitalBig DataSoftware DevelopmentAnalyticsEntrepreneurshipHadoopMySQLSQLRubyGitLanguages Arabic · English · French
From Loren's professional profile.
Colleagues at Paradigm
Alana Palmedo
Managing Partner at Paradigm
Alex Grieve
VP of Government Affairs at Paradigm
Alex Popescu
Chief Compliance Officer at Paradigm
Alexander Walterspiel
Partner at Paradigm
Alpin Yukseloglu
Partner, Investing & Research at Paradigm
Arjun Balaji
Partner, Investing & Research at Paradigm
Ben Hinshaw
Deputy General Counsel at Paradigm
Caitlin Pintavorn
Venture Partner at Paradigm
Network5
Fred EhrsamScout
Co-founder and Senior Advisor at Paradigm; founder of Nudge
Alana PalmedoScout
Managing Partner at Paradigm
Arjun BalajiScout
Partner, Investing & Research at Paradigm
Casey CarusoScout
Partner at Paradigm
Charlie NoyesScout
General Partner at Paradigm
Investors connected to Loren in public investor directories — a warm-intro map.
Frequently asked questions
- Where does Loren Siebert work?
- Loren Siebert is Angel at Paradigm.
- What check size does Loren Siebert write?
- Loren Siebert typically writes checks of $25K – $100K.
Same school
Also attended The London School of Economics and Political Science (LSE)940
Lee FixelFounder of AdditionPat GradyPartner at Sequoia CapitalNeil MehtaCo-founder & Managing Partner at GreenoaksCyriac ParisotInvestor at Index VenturesSofia DolfeInvestor at Index VenturesJonas VetterleInvestor at Moonfire Ventures
+ 934 more
Also attended The University of Manchester163
Joel NoyceInvestor at Moonfire VenturesJames BraithwaiteFinancial Controller at NorthzoneFreya Svedberg-KeatingInvestor at MedicxiAndy LeaverOperating Partner at Notion CapitalSimon SegarsExecutive Advisor at Black Opal VenturesHonor de WintonExecutive Assistant at Giant Ventures Global Llp
+ 157 more
Also attended University of Maryland Baltimore County17
Beth ThorpeAdministrative Manager at JMI EquityKatie WillgingSenior Alternative Investments Analyst at NextGen Venture PartnersStephanie C. HillPresident, Rotary and Mission Systems at Lockheed Martin VenturesSam DienerManaging Partner at Early Light VenturesGreg CangialosiVenture Partner at Early Light VenturesMatt DimariaDirector at Innovation Studio
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+ 11 more
Shared employers
Also worked at Paradigm37
Fred EhrsamCo-founder and Senior Advisor at Paradigm; founder of NudgeMatt HuangCo-founder and Managing Partner at ParadigmAlana PalmedoManaging Partner at ParadigmDaniel RobinsonGeneral Partner at ParadigmAlpin YukselogluPartner, Investing & Research at ParadigmArjun BalajiPartner, Investing & Research at Paradigm
+ 31 more
Also worked at Citadel Securities22
Alfred LinPartner at Sequoia CapitalKonstantine BuhlerInvestor at Sequoia CapitalRama SomayajulaHead of Trading at ParadigmJulia HitchinsInvestor at Positive Sum CapitalAnthony DeCamilloPartner at Meritech Capital PartnersVidur GuptaVice President at Frontenac
+ 16 more
Also worked at Primer.ai7
Karan MehandruManaging Director at Madrona Venture GroupKerstin DittmarManaging Partner at L2 Point at PICUS CAPITALJane ChuExecutive Assistant at Glynn Capital ManagementScott BarclayManaging Director, Healthcare at Insight PartnersSuril KantariaFounder at SavvySamuel OluwalanaFounder at HyperGlue
+ 1 more
