I'm Luka. I build systems where being wrong is expensive.

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Luka

Krestinin

Second-year CS and Math at the University of Chicago. Quant research at Teza. Co-founder of Veto, runtime authorization for AI agents. Paying users since high school. Writing code since I was twelve.

Resume

Play Reel

Selected Work

Startups, hackathon wins, paid bots, security tools, and research.

technical co-founder • yc s26 top 10% • node + python sdks

Veto

sole developer • 28,000 lines of typescript • open source

Claw

founder & sole developer • $152k in two days • 2,300 users

AutoStickers

backend & solana programs • 1st place • scbc hackathon 2026

Senthos

software lead • 1st place • makemit x harvard 2026

Litter Critter

sole developer • 27+ feature ml model • ~93% accuracy

Phishing Website Detector

See all projects

Recognition

03

SCBC Hackathon

Apr 2026

1st Place · Solana Track · $7k

MakeMIT x Harvard

Feb 2026

1st Place · Sustainability

Y Combinator

2026

Top 10% of S26 applicants

Experience

03

Teza Technologies

Jun–Aug 2026

Quant Research Intern

Consolware GmbH

May–Jun 2024

Machine Learning Intern

JSA Group

Jun–Aug 2024

Cybersecurity Intern

Education

04

University of Chicago

2025–2029

B.S. CS & Math

Club: Algo Group

Club: Robotics

Club: Blockchain Chicago

Letovo School

2020–2025

IB Diploma · 43/45

Stanford Online

2024

Cryptography I · Coursera

Hack The Box

2024–2025

Labs & Academy

WHAT I

BUILD WITH

Tools I use every day, across languages, data & ML, security, and infrastructure.

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Languages

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Python
TypeScript
C++
SQL