Fundraising Fox

Alexey Stoletny

Investor

General Partner at SID Venture Partners

New York, New York

Writes $100K – $5M checks · typically $1.5M

About

Alexey Stoletny is Senior Vice President of Global Engineering at HUMAN, where he oversees global engineering operations. Previously, he co-founded and served as CTO of clean.io, a cybersecurity startup focused on threat research and product development, until its acquisition by HUMAN in 2022. His background includes leading a software development and consulting business that grew to over 2,000 engineers, investing in early-stage companies, and building cybersecurity teams.

Experience

  1. HUMANSVP, Global Engineeringcurrent2025 — presentDallas, Texas, United States
  2. HUMANSVP, Engineering2024 — 2025Dallas, Texas, United States
  3. HUMANVP, Engineering2022 — 2024United States
  4. clean.io (now HUMAN)CTO and Co-foundercurrent2017 — presentNew York
  5. SID Venture PartnersGeneral Partnercurrent2021 — presentUnited States
  6. Sigma Software GroupBoard Member, Sigma Software Inc., Americascurrent2022 — presentUnited States
  7. Sigma Software GroupEngineering & Cybersecurity Fellowcurrent2022 — presentUnited States
  8. Sigma Software GroupManaging Director (US)2014 — 2022
  9. Sigma Software GroupDepartment Manager2010 — 2015
  10. Sigma Software GroupAccount Manager2009 — 2010
  11. Sigma Software GroupProject Manager2008 — 2009
  12. Sigma Software GroupTeam Leader2008
  13. Sigma Software GroupSenior Software Engineer (Sony Ericsson)2007 — 2008
  14. Sigma Software GroupSenior Software Engineer2007
  15. Sigma Software GroupSoftware Developer2005 — 2007
  16. Sigma Software GroupJunior Software Developer2005
  17. Centur ITOwner & CEO2003 — 2005

Skills & more

MS Office Suite9.NET51iOS6Java21JavaScript15Android6Eclipse11T-SQL4Ant3C#39Subversion6Consultancy9
+12 moreGraphic DesignCustom Software DevelopmentBlackberryWindows Phone 7Windows PhoneSoftware DevelopmentScrumOOPWeb ServicesArchitecturesArchitectureWeb Development

Languages English · Russian · Ukrainian

  • OSCP: Offensive Security Certified Professional — OffSec

From Alexey's professional profile.

Colleagues at SID Venture Partners

Andrey Lazorenko
General Partner at SID Venture Partners
Andriy Lazorenko
General Partner at SID Venture Partners
Anton Vaisburd
General Partner at SID Venture Partners
Daria Yaniieva
Advisor at SID Venture Partners
Dmitry Vartanian
General Partner at SID Venture Partners
Dmytro Vartanian
Managing General Partner at SID Venture Partners
Galyna Isakiv
Head of Portfolio & Operations at SID Venture Partners
German Stogniiev
General Partner at SID Venture Partners

Network6

Andrey Lazorenko
General Partner at SID Venture Partners
Anton Vaisburd
General Partner at SID Venture Partners
Dmitry Vartanian
General Partner at SID Venture Partners
Galyna Isakiv
Head of Portfolio & Operations at SID Venture Partners
German Stogniiev
General Partner at SID Venture Partners
Kirill Kirikov
General Partner at SID Venture Partners

Investors connected to Alexey in public investor directories — a warm-intro map.

Frequently asked questions

Who is Alexey Stoletny?
Alexey Stoletny is Senior Vice President of Global Engineering at HUMAN, where he oversees global engineering operations. Previously, he co-founded and served as CTO of clean.io, a cybersecurity startup focused on threat research and product development, until its acquisition by HUMAN in 2022. His background includes leading a software development and consulting business that grew to over 2,000 engineers, investing in early-stage companies, and building cybersecurity teams.
Where does Alexey Stoletny work?
Alexey Stoletny is General Partner at SID Venture Partners.
What check size does Alexey Stoletny write?
Alexey Stoletny typically writes checks of $100K – $5M.
Where did Alexey Stoletny go to school?
Alexey Stoletny studied at Kharkiv State National University of Radioelectronics (Master's degree, Computer Science); SEC #116 (Mid education, School).

Shared employers

Also worked at HUMAN9

Jonathan HeiligerGeneral Partner at Vertex VenturesMike AielloVenture Partner (CTO, Secureworks) at AllegisCyber CapitalJoydeep BhattacharyyaInvestor at Canaan PartnersAndy ChouInvestor at 11.2 CapitalShelley ZhuangFounder and Managing Partner at 11.2 CapitalLance MatthewsPartner at DTCP

+ 3 more

Also worked at clean.io (now HUMAN)2

Alan MacIntoshFounding Partner at AgeTech CapitalValery KrasovskyGeneral Partner at SID Venture Partners

Also worked at Sigma Software Group4

Valery KrasovskyGeneral Partner at SID Venture PartnersVeronica KorzhPartner at SID Venture PartnersVlad BeckGeneral Partner at SID Venture PartnersAnastasiia KuzmenkoHead of Talent Acquisition at Flyer One Ventures