Fundraising Fox

Jonathan Fishner

Founder

Founder at OneCLI

New York, New York, United States

FoundedOneCLI Β· YC

About

Jonathan Fishner is the founder of OneCLI. He previously held the role of Principal Security Architect at Axis Security and worked as a Software Engineer at Fiverr for four years. He began his career in the IDF's Unit 8200, where he established and led the unit's first Big Data team.

Founder at OneCLIYC S26

Intro paths

YC

Jonathan went through Y Combinator (Summer 2026) β€” any YC alum in your network can reach them through the YC community.

GP

Their group partner at YC was Brad Flora, General Partner at Y Combinator β€” the partner who ran OneCLI's batch and knows the company first-hand. YC profile β†—

β†’

In turn, Jonathan can intro founders to OneCLI's investors below.

OneCLI's investors Β· 1

Co-founders at OneCLI

Experience

  1. OneCLICo-Founder & CEOcurrent2026 β€” present
  2. ChartDBFounder2025 β€” 2026
  3. Axis SecurityPrincipal Security Architect2020 β€” 2024New York, United States
  4. On DeckFounders Fellowship2020San Francisco Bay Area
  5. EbatesSoftware Engineer2019 β€” 2020Greater New York City Area
  6. FiverrSoftware Engineer2017 β€” 2019Greater New York City Area
  7. FiverrSoftware Engineer2016 β€” 2017Tel Aviv Area, Israel
  8. FiverrPlatform Engineer2014 β€” 2016
  9. Israel Defense ForcesSoftware Engineer2009 β€” 2014
  10. Madeira SQL Server ServicesSQL Server Consultant2012

Education

  1. Y CombinatorSummer 26 Batch
  2. The College of Management Academic StudiesB.Sc., Computer Science2011 β€” 2015

Skills & more

Start-ups47Entrepreneurship45Performance Tuning64Big Data82Database Design67Software Design7Software Development4Hadoop82Python38SQL99Java36C#32
+6 moreNode.jsMapReduceMicrosoft SQL ServerRuby on RailsSQL TuningHive

From Jonathan's professional profile.

Same school

Shared employers