Meet the Executive Leadership Team Guiding Our Strategy and Mission

Stephen Lazer

President and Chief Executive Officer

Stephen (Steve) Lazer serves as Questar Assessment’s president and chief executive officer. A long-time veteran of Questar’s parent company, Educational Testing Service (ETS), and highly respected throughout the industry for his assessment expertise and business acumen, Steve plays a pivotal role in driving innovation and ensuring that the company continues to build on its track record of exceptional growth and achievement.

Jason Hake

Chief Financial Officer and
Executive Vice President of Finance and Operations

Jason Hake is the financial leader for the company, guiding the strategic direction, identifying revenue and profit improvement opportunities, and analyzing the financial implications of business activities through his demonstrated ability to resolve complex financial issues; and manage cash flow, assets, liability, and all fiscal reporting activities.

Katie McClarty, Ph.D.

Chief Assessment Officer

Dr. Katie McClarty possesses deep expertise in assessment design and K–12 educational research and policy. She leads Questar’s Assessment Services division and oversees item development, test design and development, psychometrics, editorial, graphics, and assessment and training support for Questar’s staff and clients, while guiding design and development of testing programs.

Brad M. Baumgartner

Chief Operating Officer

As chief operating officer for Questar, Brad Baumgartner oversees ongoing business operations, with a focus on the company’s drive for ever-improving operational excellence.

Nate Ober

Chief Technology Officer

As Questar’s chief technology officer, Nate Ober provides a broad vision for our product development that includes innovating in automation, customization, and reusable processes and software systems, and leads teams in the areas of technology, infrastructure, and quality analysis.

Cheryl Hilinski, PMP

Chief Performance Officer

Cheryl Hilinski is responsible for driving strategic and business initiatives, and leads Questar’s Product and Performance teams. She executes on strategy and supports operational excellence through the delivery of leading-edge products and capabilities and optimization of internal processes and business systems.

Jim McMann

Vice President of Operations

With over 20 years of experience in the state summative educational assessment market, Jim McMann provides direction to our team members in process flow, procedures, training, and quality for pencil/paper materials production and fulfillment, shipping and receiving, warehousing and materials processing, and scanning.

Kristin Werk, PMP

Vice President of Partner Effectiveness

Since joining Questar Assessment in 2015, Kristin Werk, PMP, has proven herself to be a highly effective and adaptable leader, advancing rapidly from the role of senior director of sales effectiveness to vice president of partner effectiveness.

Jennifer Bergstrom


In her role as Questar’s controller, Jennifer Bergstrom oversees day-to-day financial operations and works closely with the CFO to set and track progress toward the company’s financial goals.