Mark Justin

Mark Justin: Email & Phone Number

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Senior Software Engineer at Citadel Securities|New York, New York, United States

Position:

Senior Software Engineer at Citadel Securities

Location:

New York, New York, United States

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Last updated: 2026-05-19
Updated: 2026-05-19

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Work Experience 8 years

Senior Software Engineer at Citadel Securities

Jan 2021 - Current

Software Engineer at Google

Jan 2018 - Jan 2021

Mark Justin started working in 2018, then the employee has changed 1 company and 1 job. On average, Mark Justin works for one company for 4 years 3 months.

Their professional focus is C++, Operating Systems, and Software Infrastructure across 3 core areas.

Education

Bachelor's degree at Stanford University

Frequently Asked Questions

What is Mark Justin's email address?

SignalHire found a verified business email address for Mark Justin: j********k@citadelsecurities.com.

What is Mark Justin's phone number?

SignalHire found a verified phone number for Mark Justin: +1-***-***-4013.

How do I contact Mark Justin at Citadel Securities?

You can reach Mark Justin 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 Mark Justin's professional background?

Mark Justin has 8 years of professional experience. They have held roles including Software Engineer at companies such as Google. Their education includes Bachelor's degree from Stanford University.

Is Mark Justin's contact information up to date?

Yes. Mark Justin's SignalHire profile was last updated on 19 May 2026, reflecting their current position as Senior Software Engineer at Citadel Securities in Miami, Florida, United States.

Mark Justin Namesakes

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Mark Justin
Business Development Associate
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Mark Justin
soundclasses
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