J.D. Slaughter and J.W. "Brook" Brookshire standing together in front of a large display

Leading the way in top-tier EPC.

S&B’s leadership team knows how to deliver for our customers. Learn more about them.

Executive Leadership Team

Jeff SipesChief Executive Officer
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Jeff Sipes

Chief Executive Officer

Jeff Sipes is responsible for overseeing the total S&B enterprise, which employs more than 4,500 people in multiple offices throughout the US and abroad.

After earning his bachelor’s in Civil Engineering from Texas Tech University, Jeff embarked on a career as a civil engineer and today has more than 30 years of experience in the EPC industry. In 2010, he was elected to the Texas Tech Civil Engineering Academy and continues to serve as an ambassador for the University’s International Experience Program.

In his free time Jeff enjoys the outdoors, cycling and fishing, as well as spending time with his wife Meredith and their four children.

John ParkerPresident and Chief Operations Officer
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John Parker

President and Chief Operations Officer

John Parker joined S&B in 1990 and served as a civil / structural engineer, estimator, project engineer, project manager, project director, operations manager and senior vice president of EPC and construction before being promoted to his current role.

John has experience in managing both grassroots and revamp projects and has been integral from the conceptual phase through construction, including startup activities. He is adept at managing all facets of projects throughout their lifecycles, including scope development, execution planning, cost estimating, scheduling and construction planning.

John earned bachelor’s degrees in Civil Engineering and Architecture from Texas Tech University. He is a Licensed Professional Engineer in the state of Texas.

Greg HaferExecutive VP, Chief Commercial Officer
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Greg Hafer

Executive VP, Chief Commercial Officer

Greg Hafer joined S&B in 1992 and served as a piping engineer, mechanical department head, manager of proposals, vice president of business development and senior vice president of commercial before being promoted to his current role.

Greg has nearly 40 years of engineering, procurement, and construction experience. He has been an integral part of S&B throughout his tenure, by leading strategic initiatives and contributing significantly to the company’s expansion and success in target markets.  Greg’s focus is on aligning S&B's strengths and customers’ needs to better serve them.

Greg earned a bachelor’s degree in mechanical engineering from Stanford University and is a licensed professional engineer in Texas.

Dean QuinnExecutive VP, General Counsel and Secretary
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Dean Quinn

Executive VP, General Counsel and Secretary

Dean Quinn joined S&B in 2001 and is responsible for all legal, risk management, human resources and compliance matters. Prior to S&B, Dean served at another international EPC company, handling legal and business matters for projects around the world. He began his career in private law practice, trying construction and commercial lawsuits and advising business clients.

Dean works with and serves on the boards of several academic, community and philanthropic institutions. He earned his Finance and J.D. degrees from Texas Tech University.

Valerie CarlsonExecutive VP, Chief Financial Officer
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Valerie Carlson

Executive VP, Chief Financial Officer

Valerie Carlson is responsible for optimizing S&B’s financial performance and oversees the company’s accounting and finance functions.

Valerie joined S&B from Members Choice Credit Union, where she served as Chief Financial Officer. She has more than 20 years of experience in oil and gas, construction, and financial services. Valerie earned her bachelor’s degree in business administration from the University of Houston – Victoria and her master’s degree in accounting from the University of St. Thomas. She is a licensed CPA.

Gordon BeaverExecutive VP, Safety, Security and Training
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Gordon Beaver

Executive VP, Safety, Security and Training

​Gordon Beaver joined S&B in 1995, serving several years as Sr. Safety Manager before being promoted to Vice President and later Sr. Vice President. Before S&B, Gordon built a long and distinguished career with another major EPC firm where he worked his way up from a structural iron helper to senior safety manager.

Operations Leadership

Mike JanssenSenior VP, Engineering Operations
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Mike Janssen

Senior VP, Engineering Operations

Mike Janssen oversees all engineering operations and project management activities for S&B.

Mike has 21 years of industry experience and began his career at S&B in 2006. During his time at S&B, Mike has held several roles across the company including Project Engineer, Project Manager, Alliance Manager, Director of Projects and Alliances, Vice President of EPC and Project Management; and, most recently, Vice President, Oil, Gas & Chemicals.

Mike earned a Bachelor of Science in Mechanical Engineering from Texas A&M University and a Master of Business Administration from Rice University.

Dale HaynieSenior VP, EPC and Construction
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Dale Haynie

Senior VP, EPC and Construction

Dale Haynie began his career in the industry as a pipefitter and has been with S&B for 21 years. Throughout his time with the company, he has held roles managing technical services and providing direct oversight for operations on multiple projects for key clients as an area operations manager. 

Today, Dale oversees all construction activities and integrated EPC projects at S&B with a focus on execution excellence.

Kent DanforthSenior VP, Chief Procurement Officer
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Kent Danforth

Senior VP, Chief Procurement Officer

Kent Danforth oversees all functions of procurement, including purchasing, expediting, logistics, materials management and source inspection.  Additional responsibilities include construction services, third-party rentals and facilities management for all S&B properties.

Kent began his career with the United States Army and then segued into shipbuilding as an apprentice fabricator and welder.  Once he completed his apprenticeship academics Kent moved into procurement and supply chain management, which has lasted for 33 years with three separate companies. 

Kent has international experience, specifically with a focus on the Middle East supply chain. For the last 11 years, Kent has held positions at S&B as a Subcontracts Manager, Procurement Manager, Director Procurement and VP Procurement before being elevated to his current role.

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