Jonah Cha: Email & Phone Number

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Generalist Machine Learning Engineer at Mercor|San Francisco Bay Area, United States

Position:

Generalist Machine Learning Engineer at Mercor

Location:

San Francisco Bay Area, United States

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Last updated: 2026-05-28

Updated: 2026-05-28

Found email addresses for Jonah Cha:

Business emails:

**@mercor.com

Personal emails:

c**j@berkeley.edu

Found phones for Jonah Cha:

+1-323-***-**82,

+1-480-***-**17,

+1-520-***-**91,

+1-870-***-**07

A different Jonah Cha?

Work Experience 4 years

Generalist Machine Learning Engineer at Mercor

May 2026 - Current

AI Researcher at University of California, San Francisco

Jan 2026 - Current

AI Researcher at University of California, Berkeley, Haas School of Business

Sep 2025 - Current

Machine Learning Engineer at Mercor

Nov 2025 - May 2026

Rubric Expert at Mercor

Jan 2026 - Feb 2026

AI Researcher at Berkeley Artificial Intelligence Research

Sep 2025 - Dec 2025

Web Development Intern at Stoa

Jun 2024 - Aug 2025

Artificial Intelligence Intern at UpLevel Ops

May 2024 - Aug 2025

Soccer Referee at Christian Athletic Association

Sep 2022 - Apr 2025

Lifeguard Captain Corps Volunteer at United States Lifeguard Association

Jun 2022 - Aug 2024

Jonah Cha started working in 2022, then the employee has changed 7 companies and 7 jobs. On average, Jonah Cha works for one company for 11 months.

Their professional focus is Academic English, AP Biology, and AP Calculus across 3 core areas.

Education

Bachelor's degree at UC Berkeley Electrical Engineering & Computer Sciences (EECS)

Dual enrolled in High School at Foothill College

Frequently Asked Questions

What is Jonah Cha's email address?

SignalHire found verified email addresses for Jonah Cha, both business and personal. Their business email is **@mercor.com, and personal emails include c**j@berkeley.edu.

What is Jonah Cha's phone number?

SignalHire found multiple verified phone numbers for Jonah Cha: +1-323-***-**82, +1-480-***-**17, and +1-520-***-**91.

How do I contact Jonah Cha at Mercor?

You can reach Jonah Cha through SignalHire by unlocking their verified email and direct phone number (free signup, no credit card needed). SignalHire is the fastest route if you need their contact details immediately.

What is Jonah Cha's professional background?

Jonah Cha has 4 years of professional experience. They have held roles including AI Researcher, AI Researcher, and Machine Learning Engineer at companies such as University of California, San Francisco, University of California, Berkeley, Haas School of Business, and Mercor. Their education includes Bachelor's degree from UC Berkeley Electrical Engineering & Computer Sciences (EECS), and Dual enrolled in High School from Foothill College.

Is Jonah Cha's contact information up to date?

Yes. Jonah Cha's SignalHire profile was last updated on 28 May 2026, reflecting their current position as Generalist Machine Learning Engineer at Mercor in San Francisco, California, United States.

Jonah Cha Namesakes

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Jonah Cha

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