Leadership

Dirk Heinen, Chief Executive Officer

 

Chief Executive Officer Dirk Heinen teamed with his colleague Brett Stewart to form Acumera in 2002, after the two successfully led the deployment and management of wired and wireless Internet access service for hotels and meeting rooms as co-founders of Wayport (now ATT Wi-Fi Services).

Dirk delivers executive management for Acumera’s team providing managed network security and automation services for the payment systems and operations of multi-site businesses. Prior to founding Acumera, Dirk served as vice president of operations at Wayport and senior vice president of operations for Multimedia Games.

Brett Stewart, Chief Technology Officer

 

Chief Technology Officer Brett Stewart teamed with his colleague Dirk Heinen to form Acumera in 2002, after the two successfully led the deployment and management of wired and wireless Internet access service for hotels and meeting rooms as co-founders of Wayport (now ATT Wi-Fi Services).

 

In his role as Chief Technology Officer at Acumera, Brett manages the delivery and installation of secure WAN/LAN networks, ensuring PCI compliance with every component. He has extensive knowledge in IP licensing, as well as WiFi and DSL semiconductor markets. Brett has been awarded more than 50 patents relating to WiFi and network innovation.

 

Prior to founding Acumera, Brett served as the Chief Executive Officer at Wayport and director of business development for Advanced Micro Devices, Inc.

Tabitha Greiner, Chief Security Officer

 

Chief Security Officer Tabitha Greiner is a trained Payment Card Industry Data Security Standards (PCI-DSS) expert. She is responsible for leading all cybersecurity-focused initiatives for the business, including maintaining internal security practices.

 

Prior to joining Acumera, Tabitha served as Director of Security Services at ComplyGuard Networks, a systems and network security provider. She also has held notable security consultant, security architect and security engineer positions at Verizon, Trustwave, Chicago Public Schools and Regence.

Danny White, Vice President of Operations

 

Vice President of Operations Danny White leads the staff that manages the deployment, installation and configuration of new customer sites.

 

Danny has more than 25 years of leadership experience in rapidly growing technology businesses. Prior to joining Acumera, he helped launch the cloud-based design software offerings for Autodesk, Global Services. He also served as Vice President of Manufacturing and Services for Multimedia Games, a leading provider of networked gaming and lottery systems.

Robert Gelinas, Vice President of Marketing

 

Bob Gelinas leads all Acumera’s Marketing efforts, from demand generation, to sales channel support, to creative development and public relations.

 

Bob has over 20 years of Sales and Marketing leadership experience working in networking, cyber security, and software development organizations such as Motorola/Codex, SAIC/Global Integrity, StorageTek/Network Systems, WholeSecurity, CyberGuard, iCrypt, CyberSafe, SoftServe, KM Ware, and AppXoft.

Antoine (A.J.) Johnson, Vice President of Sales

 

A.J. leads Acumera’s sales team.  He is responsible for revenue generation, customer development, and account retention.

 

 
Prior to Acumera, A.J. started Duo Security’s Austin expansion effort, leading a team focused on the Central US.  A.J. has also held sales leadership roles with Ten-X, VMware, and Dell Technologies.