David Zeller, CISSP

Owner @ ZellTech | IT & Cybersecurity for Small Businesses | Secure, Compliant, and Predictable IT That Just Works

Paramus, New Jersey, United States

About

I run ZellTech, a managed IT and cybersecurity company focused on helping small and mid-sized businesses get secure, reliable, and well-managed technology without the chaos of multiple vendors. My focus is simple. Build environments that are secure, scalable, and easy to operate so business owners can focus on running their company instead of dealing with IT issues. We provide managed IT services, cybersecurity, Microsoft 365 and Google administration, backup and monitoring, along with practical AI and automation to help businesses work smarter. Everything is built around predictable service, clear accountability, and a security-first approach. Before launching ZellTech full time, I spent years working across real estate, healthcare, and financial services. I led infrastructure and cloud initiatives, supported compliance programs, and managed endpoints and environments at scale. That experience now directly shapes how I design solutions for clients today. What makes my approach different is staying involved end to end. From initial conversations and planning through implementation and ongoing support, I work closely with clients to make sure everything actually works the way it should. CISSP certified with a BBA in Computer Information Systems from Baruch College. Always focused on improving systems, simplifying complexity, and staying ahead of where technology is going next.

Experience

  • Founder & President at ZellTech, LLC
    2011 - Present · 15 yrs 6 mos

    ZellTech provides managed IT and cybersecurity services for small and mid-sized businesses, focused on secure, reliable, and predictable technology. I work directly with clients to design and manage IT environments, improve security, and simplify operations through proactive support, Microsoft 365 management, backup, and automation solutions.

  • Edison Properties (Full-time · 13 yrs 2 mos)
    • VP, IT Operations and Infrastructure
      Mar 2019 - May 2026 · 7 yrs 3 mos

      Driving enterprise IT strategy and infrastructure modernization across Edison Properties. Lead initiatives in cloud migration, cybersecurity, and systems resilience, while overseeing cross-functional teams and vendor partnerships. Focused on operational excellence, secure connectivity, and scalable technology solutions.

    • Director, IT Operations & Infrastructure
      Apr 2013 - Mar 2019 · 6 yrs

  • Senior Infrastructure Engineer at CA Technologies
    May 2011 - Apr 2013 · 2 yrs

  • Systems Infrastructure Administrator at Edison Properties
    Apr 2010 - May 2011 · 1 yr 2 mos

  • Senior Systems Engineer at 1199 National Benefit Fund
    Feb 2004 - May 2010 · 6 yrs 4 mos