Doron Segal
FounderCo-founder & CTO at Per Diem
San Francisco, California
Writes $5K β $50K checks Β· typically $25K
FoundedPer Diem Β· YC
Find your path to Doron
822 people in our graph share verified history with Doron β schools, employers, funds. One of them is your warm intro.
About
Doron Segal is co-founder and CTO of Per Diem, a company in Y Combinator's Winter 2021 batch, and has previously co-founded the startups Heartistfy and CityOwls. He is a self-taught engineer who began his career at age 16, later worked as a security researcher at a cybersecurity company, and served as CTO of NK Stream LTD, where he managed four teams totaling 15 engineering and IT staff. He also served as a commander in a technology unit in the Israeli Army.
Co-founder & CTO at Per DiemYC W21
Intro paths
Doron went through Y Combinator (Winter 2021) β any YC alum in your network can reach them through the YC community.
Their group partner at YC was Brad Flora, Backing expeditions into the future β the partner who ran Per Diem's batch and knows the company first-hand. YC profile β
In turn, Doron can intro founders to Per Diem's investors below.
Per Diem's investors Β· 2
Co-founders at Per Diem

Experience
- Per DiemCo-Founder | Technology & Productcurrent2021 β presentUnited States
- NirimMember Of The Journeycurrent2020 β present
- Saildrone IncDirector of Platform2018 β 2021Alameda, CA
- Saildrone IncLead Platform Engineer2016 β 2018Alameda CA
- OpenTableEngineering Manager2015 β 2016San Francisco Bay Area
- HeartistfyFounder2012 β 2016San Francisco Bay Area
- AppleSenior Software Developer (BeatsMusic Acquisition)2014 β 2015Cupertino, CA
- Beats MusicSenior Software Engineer2013 β 2014San Francisco Bay Area
- Ubiquiti NetworksSpecial Projects2013 β 2014San Francisco Bay Area
- eMeter CorporationSenior Web Developer (Lead)2012 β 2013San Francisco Bay Area
- Nk Stream LTDCo-Founder & CTO2009 β 2011Azor, Israel
- Bank LeumiCyber Security Officer2002 β 2009Israel
- Israel Defense ForcesCommander2003 β 2006
Skills & more
+12 more
MapReducePostgreSQLStart-up LeadershipStart-up VenturesVenture CapitalNegotiationComputer ScienceProblem SolvingTechnical DesignProduct StrategyHigh Performance Computing (HPC)Web DevelopmentLanguages English Β· Hebrew Β· Spanish
- On Leadership by Jeff Weiner β LinkedIn
- Fred Kofman on Managing Conflict β LinkedIn
- Introduction to Deep Learning with OpenCV β LinkedIn
- Transitioning from Manager to Leader β LinkedIn
- Graphite and Grafana: Visualizing Application Performance β LinkedIn
- Chief Technology Officer Career Guide β LinkedIn
- Leadership Mindsets β LinkedIn
- Certified Ethical Hacker (CEH) β Certified Ethical Hacker
- Red Hat Certified Engineer (RHCE) β Red Hat
- CCNA β Cisco
From Doron's professional profile.
Network3
Investors connected to Doron in public investor directories β a warm-intro map.
Frequently asked questions
- Who is Doron Segal?
- Doron Segal is co-founder and CTO of Per Diem, a company in Y Combinator's Winter 2021 batch, and has previously co-founded the startups Heartistfy and CityOwls. He is a self-taught engineer who began his career at age 16, later worked as a security researcher at a cybersecurity company, and served as CTO of NK Stream LTD, where he managed four teams totaling 15 engineering and IT staff. He also served as a commander in a technology unit in the Israeli Army.
- Where does Doron Segal work?
- Doron Segal is Co-founder & CTO of Per Diem.
- What check size does Doron Segal write?
- Doron Segal typically writes checks of $5K β $50K.
- What companies did Doron Segal found?
- Doron Segal founded Per Diem.
- Where did Doron Segal go to school?
- Doron Segal studied at University of California, Berkeley, Haas School of Business (High Impact Leadership Program); Y Combinator (YC W21); Shenkar - Engineering. Design. Art. (Bachelor of Engineering - BE, Industrial Engineering and Management).
Founder mafias
Y Combinator mafia10,230
Also came through, then founded or led a company.
+ 10,223 more
Apple mafia306
Also came through, then founded or led a company.
+ 299 more
University of California, Berkeley, Haas School of Business mafia265
Also came through, then founded or led a company.
+ 258 more
Ben-Gurion University of the Negev mafia94
Also came through, then founded or led a company.
+ 87 more
Shenkar - Engineering. Design. Art. mafia6
Also came through, then founded or led a company.
Same school
Also attended University of California, Berkeley, Haas School of Business978
+ 972 more
Also attended Y Combinator2,000
+ 1,994 more
Also attended Shenkar - Engineering. Design. Art.13
+ 7 more
Also attended Ben-Gurion University of the Negev216
+ 210 more
Shared employers
Also worked at OpenTable19
+ 13 more
Also worked at Apple787
+ 781 more
Also worked at Ubiquiti Networks6
Also worked at eMeter Corporation7
+ 1 more













































































