Eyal Foni

Eyal Foni builds reinforcement-learning environments, with recent work at Deeptune on specialized expert environments for frontier AI labs. He previously engineered software at Cortex, Addepar, Pillar, Digital Asset and Cyberwrite.

Career

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Based in: New York City

Mercor

Jul 2026 — Present

Member of Technical Staff

Deeptune

Mar 2026 — Present

Member of Technical Staff

Cortex

Dec 2022 — Mar 2026

Software Engineer

Stealth Startup

Sep 2021 — Nov 2022

Co-Founder / CTO

Addepar

2021 — Aug 2021

Software Engineer

Pillar (acquired by Acorns)

Sep 2019 — Feb 2021

Software Engineer

Digital Asset

Jul 2018 — Aug 2019

Software Engineer

Cyberwrite

Jun 2017 — Aug 2017

Software Engineer

The Johns Hopkins University

Products & media

github.com

Inbox Concierge — Gmail classification project

The README for Foni’s pinned project explains an AI-assisted Gmail organizer, its configurable buckets, OAuth setup, application workflow and React/FastAPI/PostgreSQL architecture.

Writing

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Eyal Foni

Mercor

Deeptune

Cortex

Stealth Startup

Addepar

Pillar (acquired by Acorns)

Digital Asset

Cyberwrite

The Johns Hopkins University

Products & media

Inbox Concierge — Gmail classification project

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