Our Team

Meet Our Team

Experts at Service

The IST management team brings over 100 years combined years of IT and security expertise to your organization. We’ve successfully managed large integrated security and Information Technology projects throughout the United States and the world. Following are bios for our key management personnel:

Alec Oppenheimer - Integrated Security Technologies

Alexander W. Oppenhimer – CEO

Alexander Oppenhimer is an accomplished executive with over 25 years experience in network engineering, systems administration and project and security program management. He is both a co-founder and the current CEO of IST. He has been an integral part in the formation, transformation and growth of IST. In addition to a B.A. from the University of Virginia, he holds numerous technical certifications in advanced security hardware and information technology software systems.
Jon Langhorst - Integrated Security Technologies

Jon A. Langhorst, PSP – President

Jon Langhorst sets the standard for excellence at IST as its President, bringing several decades of experience in every aspect of the security industry to bear on the company’s growth and development. For almost 40 years, Langhorst has been managing large, complex and sensitive projects for organizations within and outside the public sector. His expertise in the design and engineering of integrated security systems, technical project management experience, and intimate knowledge of the most advanced video, intrusion and access control systems, as well as physical construction requirements, gives Jon the insight required to successfully guide IST and its clients into the future.
Michael Margolis - Integrated Security Technologies

Michael Margolis – COO

Michael Margolis leads IST’s operations group. Throughout his extensive career in security and computing, Margolis has been involved with networking, cyber security, high availability and scalability of IP based systems. He has experience with scalable IP video systems, FIPS compliant access control, intrusion systems, compound design and countermeasures. He holds a B.S. in Computer Science from The George Washington University School of Engineering.
Mike Ruddo - Integrated Security Technologies

Michael S. Ruddo – Chief Strategy Officer

Michael Ruddo brings IST clients a unique combination of industrial security, procurement and contract negotiation expertise developed over the course of his 30+ years of experience designing, engineering and implementing security management systems. He is responsible for managing the strategic vision and the brand of the company, including developing and building relationships with the industry’s leading manufacturers of security and IT products, ensuring IST clients have access to the most advanced solutions and services to meet their needs at preferred pricing levels. He is also responsible for negotiation and management of our various Contract Vehicles. Ruddo has been a member of the IST team since 2005.

TaChung Chang - Integrated Security Technologies

TaChung Chang – Vice President and Senior Systems Engineer

With nearly 20 years of experience in database design, administration and application development, TaChung Chang brings IST clients exceptional engineering and integration expertise to meet their security needs. His skills cover platforms including UNIX, LINUX, Solaris and MS Windows, and his certifications include Certified Netware Engineer (3.x/4.x); Certified Lotus Notes Application Developer (4.x); Microsoft Certified Systems Engineer (4.x) and Cisco Certified Network Associate. Chang earned his M.S. in Computer Science at the State University of New York in New Paltz, NY.
Contract Vehicles
Registration is open for IST's 2019 Educational Series Event “Solve Your Identity Crisis”
IST Ranks #17 in SDM’s 2019 Top Systems Integrators Report
IST's S.H.I.E.L.D Support Portal – designed to give our clients secure 24/7/365 support – is LIVE!
IST Introduces S.H.I.E.L.D, a full life-cycle management program