Fundraising Fox

Leon Ostrež

Founder

Founder at Pazi

Croatia

FoundedPazi · YC

About

Leon Ostrež holds an M.Sc. in computer science and has worked as a software engineer and tech lead at Faze Clan. He previously contributed to Plex, a core language at Ericsson used in 2G and 3G network communications, and has released open source projects including automated testing tools and GPT Pilot.

Founder at PaziYC W24

Intro paths

YC

Leon went through Y Combinator (Winter 2024) — any YC alum in your network can reach them through the YC community.

GP

Their group partner at YC was Nicolas Dessaigne, General Partner at Y Combinator — the partner who ran Pazi's batch and knows the company first-hand. YC profile ↗

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In turn, Leon can intro founders to Pazi's investors below.

Pazi's investors · 4

500 Emerging EuropeAmsterdam · since 2024RebelSan Francisco · since 2024UpHonest CapitalSilicon Valley · $50K – $1M checks · since 2024Y CombinatorSan Francisco · $500K checks · since 2024

Co-founders at Pazi

ZSZvonimir Sabljić
Zvonimir SabljićFounder

Experience

  1. PythagoraCo-Foundercurrent2023 — presentZagreb, Croatia
  2. FaZe ClanLead Engineer2020 — 2021Los Angeles, California, United States
  3. FaZe ClanFull Stack Developer2019 — 2020
  4. Freelancing-JobsFull-stack Developer2018 — 2019Zagreb Croatia
  5. Ericsson Nikola TeslaSoftware Developer2016 — 2017Zagreb Croatia
  6. Clubble App start-upDeveloper2015 — 2016Zagreb Croatia

Skills & more

Python (Programming Language)9Node.js9Vue.js6Nuxt.jsJava1HTML5Cascading Style Sheets (CSS)

From Leon's professional profile.

Frequently asked questions

Who is Leon Ostrež?
Leon Ostrež holds an M.Sc. in computer science and has worked as a software engineer and tech lead at Faze Clan. He previously contributed to Plex, a core language at Ericsson used in 2G and 3G network communications, and has released open source projects including automated testing tools and GPT Pilot.
Where does Leon Ostrež work?
Leon Ostrež is Founder of Pazi.
What companies did Leon Ostrež found?
Leon Ostrež founded Pazi.
Where did Leon Ostrež go to school?
Leon Ostrež studied at Y Combinator; FER (Master of Science - MS, Information and Communication Technology); FER (Bachelor of Science - BS, Computer Science).

Founder mafias

Y Combinator mafia8,773

Also came through, then founded or led a company.

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+ 8,766 more

Y Combinator mafia4,716

Also came through, then founded or led a company.

Ryan SheaEntrepreneurshipFounded StacksTarek MansourFounded KalshiSuhail DoshiEating beans & riceFounded Playground +1Subomi OluwalanaW22Founded ConvoyDarius "Bubs" MonsefS19Founded Sightbox +3Matthew ScholzFounded Oisin Biotechnologies +3

+ 4,709 more

FER mafia2

Also came through, then founded or led a company.

Hrvoje BandovMaster of Science (M.Sc.)Founded Lunatic

Same school

Also attended Y Combinator2,000

Tarek MansourCo-founder & CEO of KalshiSuhail DoshiFounder of Mixpanel; founder of ParticleSubomi OluwalanaCo-founder & CEO of ConvoyMaroof AhmedFounder at Octopus VenturesJustin SwartPartner at Bitkraft Esports VenturesCollin WallaceGeneral Partner at Lobby Capital

+ 1,994 more

Also attended FER4

Božidar PavlovićPartner at AYMO VenturesKarlo KukecVenture Associate at Vesna AdvisorsDomagoj OrebManaging Partner at Feelsgood Capital PartnersHrvoje BandovFounder at Lunatic

Shared employers

Also worked at Pythagora2

Marius IstratePartner at 3VCZvonimir SabljićFounder at Pazi

Also worked at FaZe Clan2

Nick LewinInvestor at Crown Predator HoldingsYousef AbdelfattahCofounder at FaZe Clan