Telecommunications
10 T-Mobile engineering leaders
These ten people hold or have held engineering leadership roles at T-Mobile, including T-Mobile's chief technology officer and leaders of network, software and digital engineering teams. A reader can learn how engineering leaders at T-Mobile build and run their teams.
Professionals to explore
01—10Chris Kinsman
LinkedInExperience: Sr Director - Software Engineering · T-Mobile
Sr Director - Software Engineering at T-Mobile since January 2022, a director-level engineering role according to the profile, and former Director - Software Engineering at T-Mobile (2019–2022). Chris Kinsman was also Chief Architect at PushSpring (2014–2019) and Architect at EveryMove, Inc. (2012–2014).
Grant Castle
LinkedInExperience: Sr Vice President, RAN Engineering & Emerging Technologies · T-Mobile
Sr Vice President, RAN Engineering & Emerging Technologies at T-Mobile since December 2025, a vice president-level engineering role according to the profile, and former Sr Vice President, Systems Realization at T-Mobile (2024–2025). The listing also shows Grant Castle as Vice President, Engineering Services & Quality Assurance at T-Mobile, dated 1994 to 2024.
John Saw
LinkedInExperience: President of Technology, Chief Technology Officer · T-Mobile
President of Technology, Chief Technology Officer at T-Mobile since August 2025, and former EVP and Chief Technology Officer (2023–2025) and Executive Vice President, Advanced & Emerging Technologies (2020–2023) at T-Mobile. John Saw also sits on the board of CTIA and is a Fellow of the Canadian Academy of Engineering.
Kevin Lau
LinkedInExperience: Vice President, Digital Experience Engineering · T-Mobile
Vice President, Digital Experience Engineering at T-Mobile since June 2025, a vice president-level engineering role according to the profile. Kevin Lau was also Vice President, Digital, AI, and Self-Service Solutions (2022–2025), Vice President, Product & Technology, Frontline Systems (2021–2022) and Senior Director, IT Development, Digital Channels (2017–2018) at T-Mobile.
Michael Bradford
LinkedInExperience: Senior Director - IP Network Engineering and Infrastructure · T-Mobile
Senior Director - IP Network Engineering and Infrastructure at T-Mobile since December 2013, and former Director - Core IP Network Engineering and Development at T-Mobile (2010–2013). Michael Bradford was also Associate Director - National Network Engineering (2009–2010) and Director - Network Planning (Transport) (2008–2009) at Verizon.
Reuben Toll
LinkedInExperience: Director of Engineering - Core & Enterprise IP · T-Mobile
Director of Engineering - Core & Enterprise IP at T-Mobile since December 2025, and former Director of Engineering - Network Hardware Design & Deployment at T-Mobile (2017–2025). Reuben Toll was also Sr. Manager - Critical Facilities Engineering & Implementation (2013–2017) and Manager - National Facilities Engineering & Implementation (2010–2013) at T-Mobile.
Salim Kouidri
LinkedInExperience: Senior Vice President Engineering Operations · T-Mobile
Senior Vice President Engineering Operations at T-Mobile since November 2025; the profile describes the role as translating network strategy into sustained performance, growth and enterprise value. Salim Kouidri was also Senior Vice President (2020–2025), Vice President (2018–2021) and Area Director of Engineering & Operations (2011–2018) at T-Mobile.
Sandesh Shetty
LinkedInExperience: Senior Vice President, Core Network & Services Engineering · T-Mobile
Senior Vice President, Core Network & Services Engineering at T-Mobile since June 2023, a role the profile describes as defining technology standards and architecting core systems. Sandesh Shetty was also Vice President, Core Network Engineering (2018–2023) and Sr. Director, Voice & Data Network Engineering (2013–2018) at T-Mobile.
Srini Chinimilli
LinkedInExperience: Vice President, Engineering · T-Mobile
Vice President, Engineering at T-Mobile since December 2025, and former Sr Director, Engineering (2022–2025) and Director, Engineering (2016–2022) at T-Mobile. The profile says Srini Chinimilli oversaw initiatives including 5G SA realization, T-Satellite, network slicing and Agile-driven continuous delivery and automation.
Venkata Reddy Donthireddy
LinkedInExperience: Vice President of Software Engineering · T-Mobile
Former Vice President of Software Engineering (2025–2026) and Sr. Director, Cloud and Platform Engineering (2021–2025) at T-Mobile, and Vice President of Data & Intelligence at T-Mobile since March 2026. Venkata Reddy Donthireddy was also Sr. Manager, Big Data & Cloud at T-Mobile (2016–2018).
Choose the right perspective
Match the person's area to your question, since radio access, core network, IP infrastructure and software or digital engineering are run by different teams. Check whether the person's T-Mobile role is current or past before relying on it for how the company works today.
Questions to take into the conversation
- 01How does T-Mobile split engineering ownership between network engineering and software or digital teams?
- 02How does a large carrier take a new network technology from lab testing to nationwide deployment?
- 03What has worked when automating network operations and software delivery at T-Mobile's scale?
Reaching T-Mobile engineering leaders
How can I contact one of these T-Mobile engineering 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: T-Mobile, based on profile data retrieved on October 5, 2026. Being listed here doesn't mean someone has agreed to take calls.
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About this directory
This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot and may describe past or present roles. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.
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