Company Background

Global Technology Associates is a leading provider of comprehensive solutions to the telecommunications industry that couple high-value engineering, technology, and business consulting services with proprietary software solutions. We deliver 5G, IoT, Small Cells, CBRS, Automation, Enterprise Connectivity and Smart Cities.

GTA’s business is assisting clients with maximizing infrastructure potential and evolving networks, services and solutions to address market opportunities. GTA leverages its talented and experienced engineers and technologists to execute through technical excellence, proven methodologies, and a commitment to providing superior service, products and solutions. Bridging the gap between business and technology, GTA provides a full range of services and solutions tailored to address client needs.

GTA is now part of  , focused on the Connected Space.

Senior Leadership

Mark Walker




Rashid Iqbal

Executive Vice President

& Chief Growth Officer


Liz Fiallo

Senior Vice President,

Sales & Business Development


Dexter Lee

Vice President,



Geoff Stearn

Vice President,

Public Safety and Government Solutions


Jamie Kimble

Vice President,

Enterprise Solutions


Michael Kefauver

Vice President,

Deployment Services


Neil Palmer

Vice President,



Nikhil Dogra

Vice President,

Engineering Services


News & Events

Contact Us

Our Locations


WASHINGTON, DC: 1890 Preston White Dr.Suite 150 Reston, VA 20191
CHICAGO: 300 S Wacker Dr, STE 1313, Chicago, IL 60606
DALLAS: 5000 Legacy Dr Ste 100 Plano, TX 75024
SEATTLE: 15325 SE 30th Pl Ste 300 Bellevue, WA 98007
LOS ANGELES: 5000 E Spring St Ste 430 Long Beach, CA 90815


TORONTO, CANADA: 77 City Centre Dr Suite 401 Mississauga, ON L5B 1M5

PHONE: (703) 476-8999
FAX: (703) 880-6656

GTA wants your feedback. If you have any questions or comments, we would love to hear from you.

Mark’s background includes 25+ years of experience in the wireless industry with a leading global telecommunications manufacturer, a world-class carrier, and a comprehensive telecom consulting and solutions provider. Prior to joining Kelly Telecom, Mark served as Network Vice President where his team was responsible for the design, deployment, and operations of Sprint's wireless network for the Northeast Region. He also served as a leader in RF Engineering, Operations, and the Solutions Engineering teams for Nextel and Sprint. Before joining Nextel, he held positions within Motorola's Test Systems and Field Engineering teams.

Additionally, Mark is a passionate Warriors4Wireless board member. Warriors4Wireless is a nonprofit career development program designed exclusively to connect talented military veterans with meaningful and exciting careers in the telecommunications industry.

Rashid is a seasoned global executive with 25+ years of telecom experience. As GTA’s Managing Director, he is responsible for the overall GTA business and P&L. His expertise includes M&A, P&L management, sales and customer management, geographic expansion and diversifying service portfolio’s. He has managed operations on five continents. Prior to joining GTA he was the CEO of SWI, responsible for their global operations spread across North America, Europe and Middle East. Rashid spent 20+ years at LCC International (Now Tech Mahindra) where he held various senior executive positions including Chief Operating Officer for Middle East, Africa and Asia Pacific where he had end to end P&L responsibility for operations spread across 10 countries, Senior Vice President of Sales & Operations and Vice President of Engineering services for the Americas region. Prior to that he held positions at Fortune 50 companies as AT&T and Walmart Stores Inc. He has a degree in Information Systems Management with a minor in Engineering from the University of Oklahoma. He also serves on the Board of Advisors for the College of International studies at OU. Rashid is a big Sooners football fan and loves traveling and exploring new countries and cultures.

Liz is the Senior Vice President of Sales & Business Development for GTA and manages sales and account management globally for the company. With over 25 years of experience in Sales and Business Development in the Wireless Industry, Liz has a strong background on sales development and expansion, strategic planning, revenue growth and profit gains.

Prior to joining GTA in 2015, Liz was North America Senior Vice President of Sales for Tech Mahindra (formerly LCC International) overseeing sales and business growth to Government, Enterprise and Telecommunications sectors. Prior to Tech Mahindra, Liz was the Sr. Vice President of the Americas for Xceed Technologies managing sales for network optimization and rules-based network performance management solutions. Liz held other key Sales positions at LCC International and Cable and Wireless.

She holds a Bachelor’s degree in Marketing from Radford University.  During her spare time, Liz can be found boating and giving back to her community where she serves on several non-profit boards.

Dexter is Vice President of Operations with responsibility for services delivery to many key customer accounts. With over 25 years of wireless industry experience he has held several leadership roles in business operations and services delivery.

Prior to joining GTA in 2018, Dexter was Vice President, Engineering Services, North America for Sublime Wireless with responsibilities for business operations and services delivery. Prior to that he was Vice President, Global Business Operations, Network Services for LCC International with various business operations responsibilities.

Dexter holds degrees in engineering from Rensselaer Polytechnic Institute and management from The George Washington University. Outside of work Dexter has a keen interest in travel, food and wine, and enjoys expanding his wine studies beyond his current level 2 certification as a sommelier.

Geoff is the Vice President of Public Safety and Government Solutions for GTA. He has held management and executive positions in a wide range of areas with burgeoning wireless carriers over the last 30 years.

Geoff began his career with McCaw Cellular Communications (now part of AT&T), where he led site development, engineering, operations and sales and marketing teams. At Nextel Communications (now part of T-Mobile) he ran complex, multi-billion-dollar spectrum reconfiguration and acquisition programs. Most recently he led strategic initiatives for Ligado Networks, which included aviation and spectrum coordination.

Geoff holds a BA in Government and Politics from the University of Maryland and an MBA from the George Washington University. In his spare time, he enjoys travelling and exploring the outdoors.

Jamie is the Vice President of Enterprise Solutions with responsibilities that include developing network strategies utilizing non-traditional solutions such as shared spectrum and virtual/Open network elements.  Private Networks utilizing the latest technologies such as CBRS, LTE, WiFi 6 and WiFi 6E and 5G are the primary focus with the ability to provide data analytics for the enterprise customer needs.

Prior to joining GTA, Jamie worked at AT&T for 25 years as the Engineering Director and was responsible for the design, deployment and optimization of the macro and in-building wireless networks in the Florida and Georgia markets.  He was also responsible for all budget development and execution while keeping within per unit parameters ensuring efficient capital deployment.  Jamie also worked for SBA Communications as the Director of Technology Research where he was responsible for identifying wireless industry trends that could impact the tower industry.  Areas of focus included industry mergers, new spectrum auctions and developing technology trends such as virtual networks, CBRS, MIMO antennas and 4G to 5G migrations.

Jamie holds a bachelor’s degree from the University of Cincinnati in Electrical Engineering.  He resides in Florida and in his spare time he enjoys long trips on his motorcycle touring throughout the country.

Michael is the Vice President of Deployment Services for managing Commissioning and Integration (C&I) services within GTA. With his 20+ year career, Michael has observed and participated in the evolution of the mobile wireless industry, particularly in the areas of transport technologies and network implementation. He has designed large-scale transport architectures, optimized existing infrastructures, managed large design and/or implementation teams, and consulted many network operators in the development of business strategies.

Prior to joining GTA in 2019, Michael held various Solutions Management or Functional Lead roles for Tech Mahindra, LCC International, and WFI. Michael is a licensed Professional Engineer and received both his MS and BS degrees in Electrical Engineering from Virginia Tech. When not working, he enjoys salvaging and repurposing junk.

Neil is the Vice President of Deployment and C&I Sales for GTA and manages the sales globally for the company. With over 25 years of experience in Business Development and Operations in the Wireless Industry, Neil has a strong background on sales/business development, strategic planning, and delivery. Prior to joining GTA, Neil was 6 years at Nokia/SAC initially as the Vice President of Sales for the West region and then VP of Delivery for the Sprint mMIMO/5G national build. Prior to SAC, Neil was in senior sales and delivery roles at Exi Parsons, WesTower and Mycom. Neil also held other key positions on telecommunications and civil engineering projects in Hong Kong, Malaysia and Taiwan, working on projects as diverse as a Microwave Network across Malaysia, Sabah and Sarawak to the first bridge over the Mekong River between Laos and Thailand.
He holds a Bachelor’s degree in Construction Management from Sheffield Hallam  University in the UK.  During his spare time, Neil enjoys watching the English Premier League soccer and visiting the SoCal Beaches.

Nikhil is the Vice President of Engineering Services for GTA managing Operations and delivery. With over 25 years of progressive experience in the wireless industry; Nikhil has a strong background in Engineering, P&L management, Portfolio Management, Business development and strategic planning.

Prior to joining GTA in 2018, Nikhil worked at  Tech Mahindra (formerly LCC International) as North America Delivery Head for Access Network. Where he was responsible for Access network P&L, account development, strategy planning and execution of high sensitivity engagements. Prior to LCC Nikhil worked in India with various organizations holding engineering, research, and management positions in telecom sector.

Nikhil earned his Bachelor of Electronics Engineering from Marathwada University India followed by Post-Graduation in Operations Management from Symbiosis Pune, India.

Nikhil resides in Virginia with his wife and two sons. He loves to reflect on life through his blogs, articles, and poems in his free time.