Wyoming interim CIO Sheehan resigns, CISO named new CIO

Wyoming interim Chief Information Officer Timothy Sheehan announced his departure from state government. State Chief Information Security Officer Aaron Roberts is his replacement.
Wyoming Gov. Mark Gordon
Wyoming Gov. Mark Gordon thanks speaks at an event at the State Capitol in Cheyenne, Wyoming on Dec. 14, 2020. (U.S. Air National Guard / Jacqueline Marshall)

Wyoming’s interim chief information officer, Timothy “TR” Sheehan, announced Thursday he has resigned from his role as the state’s top technology official and that Gov. Mark Gordon has appointed a replacement.

Timothy Sheehan
Timothy Sheehan

Gordon announced Wednesday he’s selected Chief Information Security Officer Aaron Roberts to serve as interim CIO. Roberts has worked for the state’s Enterprise Technology Services department since 2021. His first day as interim CIO is Monday.

Sheehan was appointed Wyoming’s interim CIO for the second time in January 2023. He also served as interim CIO from May 2021 to January 2022 after former Wyoming CIO Bill Vajda resigned for health issues. (Vajda had replaced Gordon Knopp, who’d been dismissed from the role in 2021 alongside state health director Mike Ceballos after a data leak involving information collected from residents during the COVID-19 pandemic.)


As Wyoming’s interim CIO, Sheehan led the state enterprise technology division where he was tasked with creating strategic IT initiatives. He served on the state’s Cyber Assistance Response Effort, or CARE, team and sat on advisory boards.

Aaron Roberts
Aaron Roberts

Sheehan formerly served as information services administrator for the state government. He was also the state’s first cloud architect, according to the governor’s office.

“My time as Wyoming’s CIO has been nothing short of remarkable.” Sheehan wrote on LinkedIn. “Each day, I’ve had the privilege of working alongside some of the most dedicated, talented, and passionate individuals in public service. Together, we’ve weathered storms, celebrated victories, and forged bonds that transcend the confines of our workplace.”

Keely Quinlan

Written by Keely Quinlan

Keely Quinlan reports on privacy and digital government for StateScoop. She was an investigative news reporter with Clarksville Now in Tennessee, where she resides, and her coverage included local crimes, courts, public education and public health. Her work has appeared in Teen Vogue, Stereogum and other outlets. She earned her bachelor’s in journalism and master’s in social and cultural analysis from New York University.

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