Meet Our Team

Today’s competitive market for talent requires service that goes above and beyond, which always starts with an organization’s values and leadership. With decades of combined experience in staffing, our leadership team has the knowledge to bring your staffing strategy to the next level.

Greg Lambert


As CEO, Greg is responsible for leading the profitable growth of the company while maintaining the values and standard of service that have been foundational to the company’s success.  Greg’s highest priority is developing leaders in the organization who share this passion, vision and commitment. Greg has held many roles at TERRA including Branch Manager, … Continue Reading 

Mark Taylor

Chief Financial Officer

As CFO, Mark is responsible for understanding our client’s industries, the economics driving their success and how TERRA helps them succeed by providing the staffing they need, where they need it and right on time. Mark focuses on the core measures and financial principles that maintain the health of the company through all phases of … Continue Reading 

Ann Medalia


Ann came to TERRA with more than a decade of staffing industry experience leading a multi-office business unit. Since joining TERRA in October 2010, she has been instrumental in market development, leadership development and leading expansion efforts. A native of New York, Ann’s husband, Mike, is a Northwest guy who brought her to this corner of … Continue Reading 

Jenifer Lambert

Chief Strategy Officer

Jenifer started in the staffing industry while still in college and what was meant to be a short-term stint to help out the family business sparked a passion for this industry that has led to a multi-decades career touching virtually every aspect of the business.  Her focus today is ensuring the company hits its revenue … Continue Reading 

JoAnn Xydis

EVP, Sales & Market Development

JoAnn has been an integral part of TERRA’s success story, serving in a variety of roles. She started with the company as a recruiter, quickly became a top producer, and was promoted to Seattle Branch Manager in 2005. As Vice President of Corporate Services, she was responsible for HR, risk management, enterprise business services, and … Continue Reading 

Michelle Harbarcuk

EVP, Service Delivery

Michelle joined TERRA in 2011 as the Branch Manager of TERRA’s Federal Way Branch.  In less than two years she helped transform that branch into TERRA’s 2012 Branch of the Year. In early 2013, Michelle was promoted to Area Manager and was responsible for the performance and growth of TERRA’s Tukwila and Tacoma branches. In … Continue Reading 

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