John Hasslinger

John Hasslinger is a seasoned engineering professional with extensive experience in sustaining engineering and technical support, currently serving as a Senior Sustaining Engineer at Securonix since July 2025. Previously, John held various roles including Senior Sustaining Engineer, Sustaining Engineer, and Senior Customer Support Engineer at ThreatQuotient from December 2018 to July 2025. Earlier experience includes a position as a TAC Engineer II at Cisco, where John provided high-quality support for Next Generation Firewall solutions, and a Monitoring Support I role at Ultra Electronics Sotech, focusing on the management of remote Linux and UNIX systems. John also has a background in carpentry and electronics, having worked as a Carpenter Apprentice at Albrecht Construction Company and as an Electronic Technician at RESTRONIC. Educationally, John holds a Bachelor of Science in Computer Science from the University of Maryland Baltimore County and a Bachelor of Science in Physics from Towson University.