10 MasTec finance leaders
Chief financial officer of MasTec Clean Energy & Infrastructure, vice president and corporate controller, and vice president of finance are among the current titles held by these MasTec finance leaders. A reader can learn how finance leaders work at MasTec from people who have held the role.
Professionals to explore
Giovanni Lima, CPA, CGMA
LinkedInExperience: Vice President & Controller · MasTec Advanced Technologies
Giovanni Lima has been Vice President & Controller at MasTec Advanced Technologies since April 2016, based in the Miami-Fort Lauderdale area. Giovanni Lima was Chief Financial Officer (CFO) at Starboard Group Management Company, Inc. from 2012 to 2016 and worked in corporate finance, real estate and company operations at Burger King from 2009 to 2012.
Jake Rehtmeyer
LinkedInExperience: Senior Director of Finance · MasTec Power Delivery
Jake Rehtmeyer has been Senior Director of Finance at MasTec Power Delivery since October 2025, based in Greater Houston. Jake Rehtmeyer was Director of Finance and Treasury at Granite Construction from 2024 to 2025, Director of Finance and Treasurer at Tachus, LLC from 2023 to 2024 and Director of Finance there from 2021 to 2023.
Jonathan Frey
LinkedInExperience: VP, Corp Controller - IEA · MasTec Clean Energy & Infrastructure
Jonathan Frey has been VP, Corp Controller - IEA at MasTec Clean Energy & Infrastructure since June 2024. Jonathan Frey was Senior Director, Financial Projects at MasTec, Inc. from 2015 to 2025 and Senior Manager, Financial Reporting at MasTec from 2013 to 2015, and was Senior Manager at Deloitte from 2002 to 2013.
Justin Klish
LinkedInExperience: Vice President, Finance · MasTec
Justin Klish has been Vice President, Finance at MasTec since April 2025, based in Phoenix. Justin Klish was Chief Financial Officer at Harlan Companies - Construction Services from 2024 to 2025, Program Project Controller at Quanta Infrastructure Solutions Group from 2022 to 2024 and Director, Business Shared Services at Kiewit from 2020 to 2022.
Monique Porter
LinkedInExperience: Director of Finance · MasTec Communications Group
Monique Porter has been Director of Finance at MasTec Communications Group since December 2023, based in the Nashville area. Monique Porter was Senior Regional Financial Controller at MasTec Communications Group from 2011 to 2023 and Controller at Edison Automation, Inc. from 2007 to 2012.
Priyank Kothari
LinkedInExperience: Vice President Finance · MasTec
Priyank Kothari has been Vice President Finance at MasTec since August 2020, based in Greater Philadelphia, and the profile headline places the role at QuadGen, a MasTec Company. Priyank Kothari was CFO at Strength Of Nature, A Godrej Company from 2019 to 2020 and Assistant Controller at Airgas from 2017 to 2019.
Randy Pfleger, CPA
LinkedInExperience: Vice President Finance · MasTec
Randy Pfleger has been Vice President Finance at MasTec since May 2026, based in Miami. Randy Pfleger was Senior Director, Financial Projects at MasTec from 2025 to 2026, Director, Financial Projects from 2024 to 2025, Director, Financial Reporting from 2023 to 2024 and Senior Manager of Financial Reporting from 2021 to 2023.
Rick Brown, CPA
LinkedInExperience: VP Controller · MasTec Power Delivery
Rick Brown has been VP Controller at MasTec Power Delivery since January 2025, based in the Los Angeles area, and the profile headline reads VP Controller, MasTec West. Rick Brown was Vice President of Accounting at Golden West Packaging Group from 2023 to 2025 and Chief Financial Officer at NXTLVL Marine from 2022 to 2023.
Ryan Scott, CPA, MBA
LinkedInExperience: Vice President & Corporate Controller · MasTec
Ryan Scott has been Vice President & Corporate Controller at MasTec since February 2023, based in Miami. Ryan Scott was Vice President & Assistant Corporate Controller at MasTec from 2016 to 2023, Director, Corporate Accounting there from 2009 to 2015 and Corporate Controller at CompuPay, Inc. from 2005 to 2009.
Sean Kelleher
LinkedInExperience: Chief Financial Officer · MasTec Clean Energy & Infrastructure
Sean Kelleher has been Chief Financial Officer at MasTec Clean Energy & Infrastructure since November 2023, based in Houston. Sean Kelleher was Senior Group Director - Finance America's at Worley from 2020 to 2023, Senior Group Director - Finance Services and Group Energy & Chemicals there from 2018 to 2020 and Director of Finance Major Projects and Integrated Solutions from 2015 to 2018.
Choose the right perspective
Match the person's scope, whether a division CFO seat, corporate or operating-company controllership, or finance for one business line, to the decision you face. Check when each person's current role started to judge how recent their view of the work is.
Questions to take into the conversation
- 01What did you change first when you took on your current finance role, and why?
- 02How do you decide which project or business-line numbers need attention each month?
- 03What has your own work taught you about forecasting results for work that runs over many months?
Reaching MasTec finance leaders
How can I contact one of these MasTec finance 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 5 companies, including MasTec Advanced Technologies, MasTec Power Delivery and MasTec Clean Energy & Infrastructure, based on profile data retrieved on October 23, 2026. Being listed here doesn't mean someone has agreed to take calls.
How much does it cost to reach MasTec finance leaders?
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Can an AI agent ask one of these MasTec finance 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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