Burhan Drak Sibai

Burhan Drak Sibai is a founder and AI engineer who cofounded Jooba, an agentic recruiting startup, after work at Essential AI and Resolve AI. He contributed to Essential AI’s research on how language models learn to recognize and correct mistakes during pre-training.

Career

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Based in: San Francisco

a16z speedrun

Dec 2025 — Present

Scout

Fleet AI, Inc.

May 2026 — Oct 2026

Member of Technical Staff

Jooba

Oct 2025 — Oct 2026

Co-Founder

Stealth Startup

Sep 2025 — Sep 2026

CTO

Resolve AI

2025 — 2025

Member of Technical Staff

Essential AI

2024 — 2025

Member of Technical Staff

Various Companies

Jan 2018 — Jan 2024

Engineering

University of Waterloo

Bachelor's studies

Products & media

arxiv.org

Rethinking Reflection in Pre-Training

An Essential AI study testing when language models begin to recognize and correct mistakes in reasoning. Sibai is credited among the paper’s contributors; the work compares model checkpoints across six adversarial reasoning tasks.

Writing

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Burhan Drak Sibai

a16z speedrun

Fleet AI, Inc.

Jooba

Stealth Startup

Resolve AI

Essential AI

Various Companies

University of Waterloo

Products & media

Rethinking Reflection in Pre-Training

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