William Klein: Email & Phone Number

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Product Manager, Growth at WeWard|New York, New York, United States

Position:

Product Manager, Growth at WeWard

Location:

New York, New York, United States

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Last updated: 2026-07-14

Updated: 2026-07-14

Found email addresses for William Klein:

Business emails:

k******m@shakeshack.com,

k***n@eurecom.fr,

g*******e@sqor.com

Personal emails:

g*************n@alumni.epfl.ch

Found phones for William Klein:

+1-480-***-**93,

+1-480-***-**62

A different William Klein?

Work Experience 22 years

Product Manager, Growth at WeWard

Jan 2023 - Current

Product Manager, Growth at FitOn

Jan 2021 - Jan 2023

Product Manager at glo

Jan 2017 - Jan 2020

Head of Growth at Tubi

Jan 2016 - Jan 2017

Senior Director, Product & Growth at Sqor Sports

Jan 2014 - Jan 2016

Director, Product Management at Arkadin Global Conferencing

Jan 2011 - Jan 2013

Senior Product Manager, International at Orange

Jan 2008 - Jan 2010

Product Manager at France Telecom

Jan 2007 - Jan 2008

Engineering Project Manager at Orange France

Jan 2004 - Jan 2007

William Klein started working in 2004, then the employee has changed 8 companies and 6 jobs. On average, William Klein works for one company for 2 years 2 months.

William is proficient in Catalan, English, and French. Their professional focus is A/B Testing, Cross-functional Team Leadership, and Customer Acquisition across 3 core areas.

William holds Project Management Professional (PMP)®, Eurecom Certificate, and ITIL version 3 - Foundation certifications.

Education

Master of Business Administration - MBA at University of California, Berkeley - Walter A. Haas School of Business

Masters at Ecole polytechnique fédérale de Lausanne

Bachelor of Science - BS at University of Waterloo

Frequently Asked Questions

What is William Klein's email address?

SignalHire found verified email addresses for William Klein, both business and personal. Their business email is k******m@shakeshack.com, and personal emails include g*************n@alumni.epfl.ch.

What is William Klein's phone number?

SignalHire found multiple verified phone numbers for William Klein: +1-480-***-**93, and +1-480-***-**62.

How do I contact William Klein at WeWard?

You can reach William Klein 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 William Klein's professional background?

William Klein has 22 years of professional experience. They have held roles including Product Manager, Growth, Product Manager, and Head of Growth at companies such as FitOn, glo, and Tubi. Their education includes Master of Business Administration - MBA from University of California, Berkeley - Walter A. Haas School of Business, and Masters from Ecole polytechnique fédérale de Lausanne.

Is William Klein's contact information up to date?

Yes. William Klein's SignalHire profile was last updated on 14 July 2026, reflecting their current position as Product Manager, Growth at WeWard in Paris, Île-de-France, France.

William Klein Namesakes

Name

Company

Position

William Klein

Texas A&M Corps of Cadets

Member

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William Klein

Bank of America

Incoming 2026 Investment Banking Summer Analyst

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William Klein

1st Securities Mortgage

Mortgage Loan Originator

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