Sheila Sitzer, SPHR in

Sheila Sitzer, SPHR

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Sr. Vice President, Human Resources Operations at Advantage Solutions
📍 Greater St. Louis, United States

Sheila Sitzer is a strategic HR leader with over 25 years of experience building people infrastructure for high-growth organizations in tech, aerospace, and manufacturing. Currently the SVP of HR Operations at Advantage Solutions, she specializes in M&A integration, talent strategy, and large-scale transformation. Colleagues describe her as "professional" and "personable."

She is passionate about developing talent, evidenced by her Gallup Strength Finders Coach certification and her hands-on mentoring of interns. Sheila focuses on building resilient, people-centric cultures and transforming HR from a back-office function into a strategic engine for business growth, showing a deep interest in modern leadership principles.

Unique fact: Sheila leads enterprise-wide Workday HRIS implementations and personally participates in testing, celebrating clean integration checks with her team.

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Experience
12 Years
Current Role
Sr. Vice President, Human Resources Operations
Job Level
Leadership
Location
Greater St. Louis, United States
Personality Overview

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Communication Style
Decision Approach
Work Preference

Behavioral traits and communication patterns that shape how this person evaluates opportunities, builds trust, and makes decisions in professional settings.

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Priorities

Topics Sheila cares about

HR Transformation
She is leading a Workday transformation to fundamentally change how her HR organization operates and supports employees.
Workday Implementation
She is deeply involved in a current Workday HCM implementation, personally participating in testing and celebrating team milestones.
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Career

Work history

4-2025
Sr. Vice President, Human Resources Operations
Advantage Solutions
7-2024 - 4-2025
Vice President Human Resources
Advantage Solutions
7-2023 - 4-2024
Vice President, Software Development and Information Technology
Spectrum
9-2021 - 7-2023
Vice President, Human Resources
Spectrum
7-2020 - 9-2021
Sr. Director, Human Resources, Information Technology
Spectrum
In the press

Media appearances

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Education
8-1989 - 5-1993
B.A.
University of Missouri-Columbia
Certified Professor Listen Like a Leader
Barry Wehmiller Leadership Institute
Social presence
in
Behavioral profile

DISC profile (public)

DISC behavioral profile

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