About Us /
Management Team
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“A fundamental component of our integrated approach is applying the right technology to support the corporate strategy of each of our clients. From network infrastructure to integrated voice and data systems, to the personnel that support these systems, we build our client’s technical infrastructure to empower each employee with the ability to easily and efficiently operate both internally and externally.”

John Spirito
President & CEO

Joseph Lotardo
Principal, Director of Sales & Marketing

Edward Silviano
Principal, Head of Operations

Joel Poretsky
Principal, Chief Financial Officer

Glenn Jiritano
Principal, Project Manager / Superintendent

Gerard A. Holker
SVP, Operations

Jefferson Leinberger
Lead Project Manager

Robert DiMarco
New Business Development / Sales / Project Management

Philip DiMarco
New Business Development / Sales / Project Management

Larissa Nakon
Service Manager







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John Spirito
President & CEO

John Spirito is the founder and President of Wire Works Business Systems, Inc. Mr. Spirito possesses a unique combination of Electrical, Security and Communications experiences. Mr. Spirito began his career 20 years ago working for various New York City Electrical Companies, which specialized in the fields of Communications and Security. While working for these companies he attended classes, and eventually worked his way up from apprentice to journeyman.

In 1987 Mr. Spirito took a position with the MTA Triboro Bridge and Tunnel Authority as a technician in the Internal Security/Communications Division. Mr. Spirito continued to educate himself by attending project management and design classes. He was eventually promoted to management where he designed and managed large-scale communications and security projects for the Authority.

In 1996 Mr. Spirito retired from the MTA Bridge and Tunnel Authority to form Wire Works Business Systems, Inc. based on the philosophy of using his knowledge and experience to provide organizations with a single source Technology Services company. Since its inception, Wire Works Business Systems has developed a clientele of Fortune 1000 companies; Mr. Spirito attributes the company's success to quality workmanship, personalized accommodating service, and trustworthy competitive prices. Mr. Spirito is also a member of BISCI and the Association of Cabling Professionals.

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Joseph Lotardo
Principal, Director of Sales & Marketing

Joseph Lotardo's background includes a 13-year tenure at Cardkey Systems, Inc. While at Cardkey Mr. Lotardo held various positions starting as a Field Engineer and progressing up through the engineering ranks.

Mr. Lotardo holds a Bachelors Degree in Marketing from St. John's University and an Associates Degree in Electronics and Computer Science from the Academy of Aeronautics.

Mr. Lotardo is presently the Director of Sales & Marketing. He also oversees day-to-day operations of the company. He works to ensure all project installations meet or exceed industry standards and offers his technical expertise on problems that might arise.

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Edward Silviano
Principal, Head of Operations

Ed Silviano has been involved in the installation of many major integrated communication and security systems over the past 13 years. He has provided both installation and on-site supervision on a variety of projects.

Mr. Silviano received his Engineering Degree from N.Y. Institute of Technology. He has attended advanced training classes for Software House, Bosch, and American Dynamics.

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Joel Poretsky
Principal, Chief Financial Officer

As Principal and Chief Financial Officer, Joel Poretsky is primarily responsible for managing the financial risks of the company including financial planning, budgets, forecasts, and cash flow projections.

Also, Mr. Poretsky's responsibilites include inventory management, systems and components purchasing, maintenance contract implementation, and in-house staff oversight. Mr. Poretsky has been involved fully with internal operations for more than 15 years.

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Glenn Jiritano
Principal, Project Manager / Superintendent

Glenn Jiritano has been involved with the company for more than eight years. His responsibilities include field service personnel oversight, customer liaison, and technical consultation on all projects. He has been involved in the installation and service of many communication and security systems for the past 15 years.

Mr. Jiritano has provided essential installation and project management on Mount Sinai Medical Center, NYU Medical Center, McCann Erickson, Jones Day law firm, and Prudential Douglas Elliman.

Mr. Jiritano has received additional training from manufacturers Software House, Sielox, Pelco, and American Dynamics.

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Gerard A. Holker
SVP, Operations

Gerard Holker is responsible for the operational performance of all telecommunications structured cabling installation projects. His work includes managing scheduling, manpower and closeout administrative functions associated with projects. Mr. Holker has developed and implemented standardized operating procedures to ensure positive job performance while integrating cross functional business units into a cohesive operating team.

As Director of Operations and Chief Operations Officer at previous start-up structured cabling companies, he developed, refined and implemented operational policy and procedures.

Mr. Holker spent 24 years at Citigroup as Vice President of Operations and Technology, managing, designing, developing and implementing unique solutions for critical financial systems and with a singular focus on providing clients with premier information delivery and financial services.

He brings a vast array of management, telecommunications and networking experience. Mr. Holker's broad background in technology project management, development, end user liaison/support and experience with facilities/construction management complements his role as head of operations.

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Jefferson Leinberger
Lead Project Manager

Jeff Leinberger has worked in the capacity of Lead Project Manager for the past seven years. Mr. Leinberger has been involved in communication and security system design and applications for the past decade. Additionally, he has extensive security consulting experience in the fields of Site-Surveys, Guard Service Organization and Operations, Executive Protection, and Total System Integration. He has worked throughout the United States and at several locations worldwide.

Mr. Leinberger's role is to provide lead project management services for our larger Security & Telecom projects. He has traveled extensively both domestically and overseas in support of Security By Design’s worldwide clientele. Mr. Leinberger is currently completing a digitally based global security network that provides centralized system control over corporate LAN/WAN communication systems.

Mr. Leinberger has been instrumental in the design, orchestration and implementation of several large projects including the HIP Headquarters, Associated Press Headquarters, Amaranth, LLC, Vonage, The Rudin Organization, and on-going projects for Home Box Office. He is the point man for all customer liaisons, and provides on-site supervision to ensure all projects meet their stated goals on time and on budget.

Mr. Leinberger received a Bachelors Degree in Economics from Swarthmore College and an MBA in Finance from the University of Chicago. He has undergone additional training in Software House, Vicon, Cardkey, Bosch, and American Dynamics.

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Robert DiMarco
New Business Development / Sales / Project Management

Robert DiMarco began his career with Security By Design and Wireworks Business Systems in 2001 as a field technician, becoming a certified product installer and learning the skills necessary from the ground up for success in the telecommunications and security industry. He quickly moved through the ranks and began managing large scale projects for some of our most valuable clients, from an eighteen floor/3,500 workstation installation at the Law Firms of Paul Weiss, Rifkind, Wharton and Garrison, to the 500,000 square-foot buildout of The Department of Environmental Protection's state-of-the-art facilities in Long Island City. He has established himself as an integral part of the Security By Design and Wireworks Business Systems teams, and is currently responsible for new business development, and Telecom estimates and proposals.

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Philip DiMarco
New Business Development / Sales / Project Management

Philip DiMarco joined our company in September 2002 after nine years working at a major Wall Street firm on the security of negotiable receipts, commodities, and other assets.

Mr. DiMarco has been an integral part of the design of the large CCTV systems at healthcare facilities throughout New York City such as St. John’s Episcopal Hospital and the New York Eye and Ear Infirmary. His expertise in the field of access control and CCTV has guided the design and implementation of many other projects as well. Mr. DiMarco’s clients include SAC Capital, McDermott, Will, and Emory, Marathon Asset Management, and Frederic Fekkai salons. In addition, he works in a national capacity with Jefferies and Company. NYCOMED US, formerly Altana Inc. and a division of Fougera Corperation, currently utilizes more than 200 card readers and cameras in its 200,000 square feet of office and warehouse space.

Mr. DiMarco is currently a member of IHASS, ASIS, and the Metropolitan Healthcare Security and Safety Director Association. Since joining Security By Design and Wireworks Business Systems, he has demonstrated his leadership abilities on many security projects such as Pronovias, New Zealand Mission to the UN, The Mexican Consulate, Babcock and Brown, West LB AG, and XL America.

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Larissa Nakon
Service Manager

Larissa Nakon began her career with Security By Design and Wireworks Business Systems in 2004 as an office assistant, progressing swiftly to more complex work in project management with service manager responsibilities.
In her current role as a service manager at Security By Design and Wireworks Business Systems, Ms. Nakon is responsible for all service and maintenance contracts with clients. She has developed and executed an efficient way of providing accurate, timely, and consistent service. As a service manager, Ms. Nakon also handles Day Two work for security, telecom and audio visual. She holds Bachelor’s degrees in Business and Psychology from The Pennsylvania State University.

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