John Gu: Email & Phone Number

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Senior Software Engineer at DDN|Beijing, China

Position:

Senior Software Engineer at DDN

Location:

Beijing, China

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Last updated: 2026-06-21

Updated: 2026-06-21

Found email addresses for John Gu:

Business emails:

*g*@ibm.com,

*g*@ddnnet.com

Personal emails:

g****n@gmail.com,

g****n@outlook.com

Found phone for John Gu:

+86-***-***-6358

A different John Gu?

Work Experience 24 years

Senior Software Engineer at DDN

Nov 2024 - Current

Senior Software Engineer at IBM

Apr 2013 - Oct 2024

Principal Software Engineer at Dell Technologies

Jan 2011 - Mar 2013

Software Developer 3 at Oracle

Sep 2010 - Jan 2011

Senior Solaris QE at Sun Microsystems

Jun 2006 - Aug 2010

Senior Software Developer at Nortel Networks

Oct 2005 - Jun 2006

Senior Software Developer at Asiainfo

Jul 2002 - Jul 2005

John Gu started working in 2002, then the employee has changed 6 companies and 4 jobs. On average, John Gu works for one company for 3 years 4 months.

Their professional focus is C/C++/Perl/Python/Shell, C/C++ STL, and CI/CD across 3 core areas.

Education

Master at Tsinghua University

Bachelor at Tsinghua University

Frequently Asked Questions

What is John Gu's email address?

SignalHire found verified email addresses for John Gu, both business and personal. Their business email is *g*@ibm.com, and personal emails include g****n@gmail.com, and g****n@outlook.com.

What is John Gu's phone number?

SignalHire found a verified phone number for John Gu: +86-***-***-6358.

How do I contact John Gu at DDN?

You can reach John Gu 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 John Gu's professional background?

John Gu has 24 years of professional experience. They have held roles including Senior Software Engineer, Principal Software Engineer, and Software Developer 3 at companies such as IBM, Dell Technologies, and Oracle. Their education includes Master from Tsinghua University, and Bachelor from Tsinghua University.

Is John Gu's contact information up to date?

Yes. John Gu's SignalHire profile was last updated on 21 June 2026, reflecting their current position as Senior Software Engineer at DDN in Chatsworth, CA, United States.

John Gu Namesakes

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John Gu

Hana Luxury

Marketing & Operation Director

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John Gu

Amazon Web Services (AWS)

Software Engineer

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John Gu

Automotive Parts Cross-border E-commerce Company

Independent Automotive Parts E-commerce Director

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