Found email addresses for Ruby Cao:
Business emails:
r***o@ef.com
Found phone for Ruby Cao:
+86-***-***-3324
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Sign up to search for other Ruby Cao's across our 850M+ professionals databaseWork Experience 18 years
HR Director at
EF
Jul 2013 - Current
HR Director at EF Kids & Teens Ningbo Regional Operation at
EF Ningbo Kids and Teens School
Jul 2013 - Current
Adminstrative Director at
EF Ningbo Kids&Teens Franchise Schools
Jun 2013 - Current
Center Manager at
EF Ningbo Kids&Teens Franchise Schools
Jun 2008 - Jun 2013
Ruby Cao started working in 2008, then the employee has changed 2 companies and 3 jobs. On average, Ruby Cao works for one company for 11 years.
Frequently Asked Questions
SignalHire found a verified business email address for Ruby Cao: r***o@ef.com.
SignalHire found a verified phone number for Ruby Cao: +86-***-***-3324.
You can reach Ruby Cao 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.
Ruby Cao has 18 years of professional experience. They have held roles including HR Director at EF Kids & Teens Ningbo Regional Operation, Adminstrative Director, and Center Manager at companies such as EF Ningbo Kids and Teens School, EF Ningbo Kids&Teens Franchise Schools, and EF Ningbo Kids&Teens Franchise Schools.
Yes. Ruby Cao's SignalHire profile was last updated on 4 June 2026, reflecting their current position as HR Director at EF in Zurich, Zurich, Switzerland.
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