10 ManTech IT leaders
Michael Biddick, Chief Information Officer (CIO) and Senior Vice President at ManTech, heads this list of ManTech IT leaders, who also include directors of infrastructure and zero trust engineering, cloud productivity applications, enterprise data and automation, and IT security. A reader can learn how IT leaders work at ManTech from people who have held the role.
Professionals to explore
Brian Shrift
LinkedInExperience: Former Executive Director, Office of the CIO · ManTech
Brian Shrift is a former Executive Director, Office of the CIO at ManTech (August 2024 to March 2026) and a former Director, Office of the CIO there (September 2022 to August 2024). Brian Shrift was also Director Of Information Technology at ManTech from 2021 to 2022 and has been President at Vanguard Delivery Group since March 2026.
Jane Leigh
LinkedInExperience: IT Systems Director for Business Development and Contracts · ManTech
Jane Leigh has been IT Systems Director for Business Development and Contracts at ManTech since August 2024, based in Sandia Park, New Mexico. Jane Leigh was Director of Enterprise Architecture at ExecOnline from 2022 to 2024, Director Of Technology at The Policy Circle from 2021 to 2022 and Senior Salesforce Administrator at Community Brands from 2017 to 2021.
John DeVito
LinkedInExperience: IT Security Director · ManTech
John DeVito has been IT Security Director at ManTech since January 2008, based in Baltimore, Maryland. John DeVito was IT Security Consultant at Iron Mountain from 2005 to 2007, System Security Manager at HEICO from 2002 to 2004 and Database Security Consultant at AOL Time Warner from 1999 to 2001.
Kevin Knight
LinkedInExperience: Director, End User Success · ManTech
Kevin Knight is a former Director, End User Success at ManTech, a role held from July 2011 to March 2026, based in Bealeton, Virginia. Kevin Knight describes leading service delivery and support at the enterprise level in that role, and was Technical Services Administrator at K&R Industries from 1994 to 2011.
Michael Biddick
LinkedInExperience: Chief Information Officer (CIO) and Senior Vice President · ManTech
Michael Biddick has been Chief Information Officer (CIO) and Senior Vice President at ManTech since January 2026 and describes running internal technology operations for the company, keeping its global infrastructure secure and optimized. Michael Biddick also lists Interim Chief Information Officer (CIO) and Vice President, Enterprise Performance Management rows at ManTech, and was Vice President & Managing Partner at Gartner from 2021 to 2024.
Peter Johnson
LinkedInExperience: Deputy Chief Information Security Officer · ManTech
Peter Johnson has been Deputy Chief Information Security Officer at ManTech since June 2020, based in Herndon, Virginia. At ManTech, Peter Johnson was also Director of Information Assurance from 2018 to 2020 and SOC Manager - CORP from 2014 to 2018, and held Program Manager and Cybersecurity Analyst roles supporting the U.S. House of Representatives and U.S. Senate.
Phillip Cathey
LinkedInExperience: Executive Director, Enterprise Data, AI & Automation · ManTech
Phillip Cathey has been Executive Director, Enterprise Data, AI & Automation at ManTech since June 2026, based in the Greater Tampa Bay Area, and was Director, IT Services at ManTech from January 2024 to June 2026. Phillip Cathey was Director Of Information Technology at MANTECH Digital Modernization from 2020 to 2024.
Richard Roberts
LinkedInExperience: Information Technology System Administrator · ManTech
Richard Roberts is a former Director of Information Technology at ManTech (June 2020 to March 2026) and has been Information Technology System Administrator there since March 2026. Richard Roberts was also Director of IT services for ManTech Solutions and Services Operating Group in 2020 and Deputy Director of IT services for that operating group from 2007 to 2020.
Thomas Ware
LinkedInExperience: Director of Cloud Productivity Applications · ManTech
Thomas Ware has been Director of Cloud Productivity Applications at ManTech since July 2022, based in Manassas, Virginia, and was Technical Director at ManTech from 1998 to 2022. Thomas Ware was Systems Administrator at BJC Health from 1997 to 1998 and Network Administrator in the United States Air Force from 1994 to 1997.
Todd Welsh
LinkedInExperience: Senior Executive Director of Infrastructure, Architecture and Zero Trust Engineering · ManTech
Todd Welsh has been Senior Executive Director of Infrastructure, Architecture and Zero Trust Engineering at ManTech since December 2024, based in Leesburg, Virginia. Todd Welsh also lists current Executive Director of Infrastructure and Zero Trust Engineering (from 2023) and Director of Telecommunications Services (from 2004) rows at ManTech.
Choose the right perspective
Match the person's own area, such as infrastructure, applications, IT services or security and risk, to the question you are bringing. Weigh each person's dates as well, since current leaders and people who have moved on can speak to different periods.
Questions to take into the conversation
- 01How do you decide which internal IT work gets done first when requests compete?
- 02What did you change first after stepping into your current role?
- 03How do you work with the business groups that rely on the systems your team runs?
Reaching ManTech IT leaders
How can I contact one of these ManTech IT leaders?
Pick one of the 10 people on this page and choose "Book a paid call", or describe your project to find others. You offer a fee for a 15-minute call or a written answer, Instant Expert finds the person's work email and sends the invitation, and they decide whether to accept. The list covers 1 company: ManTech, based on profile data retrieved on October 24, 2026. Being listed here doesn't mean someone has agreed to take calls.
How much does it cost to reach ManTech IT leaders?
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Can an AI agent ask one of these ManTech IT leaders a question?
Yes. An agent with a USDC wallet on Base can ask one question without an Instant Expert account. It names the person, for example by the LinkedIn URL on this page, and pays per ask over x402 (HTTP 402). The person answers in writing or by voice note, and if nobody answers within 7 days, the payment goes back to the wallet automatically. Claude and ChatGPT can do the same through the Instant Expert connector: setup is at /docs/mcp for Claude and /docs/chatgpt for ChatGPT. x402 docs
About this directory
This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot; roles marked former had ended by then. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.
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