Meet the Team

Our team of talented individuals is the secret sauce to our success. They excel by listening, delivering and exceeding expectations for our clients, consultants and employees every day.

Our TSG Family

We consider ourselves a family, spread out across North America, made strong by our diversity, and drawn together by our common purpose of impacting lives, one positive experience at a time. By helping businesses flourish and job seekers reach their professional dreams, we fulfill our purpose.

We achieve by virtue of our best-in-class trained staff of delivery managers and account managers. Imbued with a learning mindset, they receive extensive training on critical emerging technologies within Mobile Apps, Security, and Data Analytics. Their knowledge and hands-on experience guarantees your positive experience day in and day out.

Senior Leadership Team

Eric Castorina

Sr. Director, Learning Performance & Optimization

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Whitney Dannecker

Vice President, Technology

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Kelly Dominguez

Vice President, Utilities

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Byron Dunn

Vice President of Delivery

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Zach Earls

Chief Revenue Officer

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Fletcher Emery

Senior Vice President, Financial Services

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Paul Griffin

Chief Legal Officer

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George Karakostantis, CEO

George Karakostantis

Chief Executive Officer

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Jonathan Kelley

Vice President, Finance & Operations

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Randall Korver-Glenn

Controller

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Missy McCormick

Senior Director, People Strategy

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Scott Pontius

Chief Financial Officer

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Chris Rhine

Senior Vice President, TSG Federal

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Dustin Sandoval

Vice President, Consumer and Industrials

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Pete Spangenthal

Vice President, Healthcare and Communications

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Brezny Weening

Director, Human Resources

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Tom Whiteley

Chief Operating Officer

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Sheldon Wolitski

Founder & Chairman of the Board

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Jeff Zirker

Senior Vice President, Managed Solutions

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Managed Solutions Experts

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Lazaro Alvarez

Sr. Solutions Architect

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Ben Hampshire

Solutions Architect

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Bart Spedden

Sr. Solutions Architect

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Work With Us

The secret to our success is not much of a secret at all. Our clients and the candidates we serve know that we apply an honest approach to our relentless pursuit of positively impacting lives.

Careers at TSG

The rapid growth, paired with a supportive culture, gives so much opportunity in terms of career advancement. I’ve never felt like I was alone or unprepared in any of the obstacles I’ve faced, and that’s because the support structure and overall transparency are truly unmatched.

Sebastian W., Account Executive