ABOUT THE STAFF

PRINCIPALS

President

Davis L. Dickerson PE

President

Mr. D. Dickerson is a registered Professional Engineer. He received his BS and MS degrees from the University of Mississippi in 1981 and 1983 respectively.

Prior to joining the DEI team, he was affiliated with Texas Instruments as a Research and Development Engineer. Mr. D. Dickerson joined DEI in 1985, was named to the Board of Directors in 1987, and appointed President in 2012.

His design background includes telecommunication systems, computer, municipal, educational and healthcare projects with particular expertise in data centers and uninterruptible power systems

As a principal of DEI, Mr. D. Dickerson shares in the supervision of all projects and is in responsible charge of project design, coordination, and preparation of construction documents.

Davis is registered in the following states:

  • Illinois
  • Alabama
  • Arizona
  • Arkansas
  • Connecticut
  • Delaware
  • Florida
  • Hawaii
  • Idaho
  • Kansas
  • Kentucky
  • Louisiana
  • Maryland
  • Minnesota
  • Missouri
  • Nevada
  • New Hampshire
  • New Mexico
  • New York
  • North Dakota
  • Ohio
  • Oregon
  • Pennsylvania
  • Rhode Island
  • Tennessee
  • Texas
  • Utah
  • Vermont
  • Virginia
  • Washington
  • Wisconsin
  • Wyoming

Rick Sabatello PE

Vice President

Mr. Sabatello is a registered Professional Electrical Engineer. He received his BS degree in Electrical Engineering from the University of Mississippi in 1982. He joined DEI upon graduation, became a Principal in 2001, and appointed Vice President in 2012.

His background includes healthcare, retail, hotel, educational, and industrial/laboratory projects with particular expertise in fire alarm, infrastructure upgrades and hospital design.

As a Principal, he is in responsible charge of project design, coordination and preparation of construction documents.

Rick is registered in the following states:

Illinois
California
Colorado
Georgia
Indiana
Iowa
Maine
Massachusetts
Michigan
Mississippi
Montana
Nebraska
New Jersey
North Carolina
Oklahoma
South Carolina
South Dakota
Washington DC
West Virginia
Vice President
President

Anthony "Jay" Tolbert

Director of Operations

Mr. Tolbert is a registered Professional Engineer in Illinois. He received his BS degrees in both Electrical Engineering and Computer Science from the University of Illinois (Urbana-Champaign) in 1987. He joined the DEI team upon graduation, was appointed Director of Operations in 1996, and became a Principal in 2001.

Senior Associate

Stephen Barnard LEED AP

Senior Associate

Mr. Barnard is a certified LEED professional. He joined the Dickerson Engineering team in 1988, was appointed a Senior Associate in 2003, and became a Principal in 2011.

Mr. Barnard supervises and manages project design, preparation/ supervision of construction documents, project quotation, client consultation, and construction administration services.

Senior Assocate

Gregory Doffin PE

Senior Associate

Mr. Doffin is a registered Professional Engineer in Illinois. He received his BS degree in Electrical Engineering from Purdue University in 1992. He joined the Dickerson Engineering team in 1994, was appointed a Senior Associate in 2005, and became a Principal in 2011.

He is in responsible charge of project design, preparation/ supervision of construction documents, project quotation, client consultation, and construction administration services.

Gregory is registered in the following states:

  • Illinois
  • Arizona
  • California
  • Colorado
  • Florida
  • Georgia
  • Guam
  • Indiana
  • Iowa
  • Maryland
  • Massachusetts
  • Michigan
  • Minnesota
  • Missouri
  • Nevada
  • New Jersey
  • New York
  • North Carolina
  • Northern Mariana Islands
  • Ohio
  • Pennsylvania
  • Texas
  • Virginia
  • Wisconsin
Electrical Engineer

August Hernandez PE

Electrical Engineer

Mr. Hernandez is a registered Professional Electrical Engineer. He received his BS degree in Electrical Engineering from Old Dominion University in 2001. He joined the Dickerson Engineering team in 2001 and became a Principal in 2019.

Augi is registered in the following states:

  • Illinois
  • Alabama
  • Arizona
  • Connecticut
  • Kansas
  • Louisiana
  • Mississippi
  • Montana
  • New Mexico
  • Oregon
  • Pennsylvania
  • Tennessee
  • Vermont
  • Washington DC
  • Wyoming
Electrical Engineer

Eric Underwood PE

Electrical Engineer

Mr. Underwood is a registered Professional Electrical Engineer. He received his BS degree in Electrical Engineering from Purdue University in 2004 . He joined the Dickerson Engineering team in 2004 and became a Principal in 2019.

Eric is registered in the following states:

  • Illinois
  • Arkansas
  • Indiana
  • Kentucky
  • Maine
  • Nebraska
  • New Hampshire
  • North Dakota
  • Oklahoma
  • Rhode Island
  • South Carolina
    • South Dakota
  • Utah
  • Washington
  • West Virginia

KEY PERSONNEL

Alexander Tamayo, PE

Electrical Engineer

Mr. Tamayo is a registered Professional Electrical Engineer in Illinois. He received his BS degree in Electrical Engineering from University of Illinois at Chicago in 2006. He joined the Dickerson Engineering team in 2006.

Robert Molitor, PE

Electrical Engineer

Mr. Molitor is a registered Professional Electrical Engineer in Illinois. He received his BS degree in Electrical Engineering from the University of Iowa in 2016. He joined the Dickerson Engineering team in 2016.

Sameer Raheja, PE

Electrical Engineer

Mr. Raheja is a registered Professional Electrical Engineer in Illinois. He received his BS degree in Electrical Engineering from the University of Illinois at Chicago in 2011. He joined the Dickerson Engineering team in 2011.

William Herzke, EIT

Electrical Engineer

Mr. Herzke received his BS degree in Electrical Engineering from Northern Illinois University in 2001. He joined the Dickerson Engineering team in 2005.