David A. Callender Sr.

David A. Callender Sr. has over 19 years of work experience in various roles in the information technology and telecommunications industry. Their most recent role is as a Field Service Engineer at Nautilus Hyosung America, where they are currently employed. Prior to that, they worked as a Technical Support IV at LS Technologies, LLC, where they were responsible for ensuring that Federal Aviation Administration (FAA) owned and leased telecommunications services and networks met operational requirements.

Before LS Technologies, they worked as an Enterprise Network Engineer at DG Business Solutions Inc, where they were involved in the configuration and administration of various systems such as F5 Networks Global Traffic Manager (GTM) and Local Traffic Manager (LTM). David A. also performed remote configuration of CISCO systems using HP Network Administrators.

Previous to that, they worked as an Electronic II Technician at Honeywell SASC and as a Technician - Test - II at PDS Tech, Inc. David A. also worked as a Microwave Installation Technician at WesTower Communications, where they were responsible for the installation and troubleshooting of microwave backbone equipment.

Earlier in their career, they worked at T-Mobile as a Sr. Technician, Network Operations (Data), where they gained experience in working on the T-Mobile GSM/UMTS/LTE network and handling various services such as General Packet Radio System (GPRS) and Voice Mail System (VMS).

Before T-Mobile, they worked as a Contractor at TEKsystems, where they troubleshooted and repaired circuits in the T-Mobile California network. David A. also worked as an Aviation Ground Electronic Technician at Scientific Research Corporation, where they were involved in the installation and maintenance of RADAR and TACAN systems.

Their earliest work experience was as a Network Technician III CPE at FairPoint Communications, where they were responsible for the start-up of Fairpoint CLEC nodes and the installation and programming of various equipment.

Overall, David A. Callender Sr. has a diverse range of work experience in the field of information technology and telecommunications, with a focus on network operations and maintenance.

David A. Callender Sr. has a diverse educational background. In 1973, they completed their high school education at Blaine High School, earning a diploma with a focus on general studies. The same year, they also attended Bellingham Vocational & Technical School, specializing in general electronics. In 1975-1977, they took part in the DeVry Electronic Correspondence Course, focusing on two-way radio electronics. Continuing their education in 1979-1981, David attended Whatcom Community College, engaging in general studies. Finally, in 2002-2003, they enrolled at DeVry University in Federal Way, Washington, where they pursued industrial electronics technology/technician studies.