Our Team

Our team is comprised of an eclectic cast of characters, all of whom contribute greatly to our exceptional service delivery, as well as to our fun-loving corporate culture

Our Partners

With decades of combined experience in IT implementation and executive management roles, our partners laid the groundwork for what has become one of NYC's elite managed IT services companies - Manhattan Tech Support. But building a thriving technology company in NYC was no simple feat. It required not only experience, dedication, and capital - but vision as well. With that in mind, Kaytuso was born. Leveraging an established team of elite IT engineers, we augmented our staff with a team of cybersecurity experts to build a dedicated security division - Kaytuso - to help business across the nation combat and defend against malicious cyber threats.

James Refino

James Refino


Christian Ugolini

Christian Ugolini


Joseph Rabinowitz

Joseph Rabinowitz


Cybersecurity Leadership


Michael S.

Director of Security Services

Michael sits at the helm of our security team as our Director of Security Services. He’s responsible for leading the charge in delivering robust regulatory compliance and customized cybersecurity solutions to our clients. A seasoned veteran, Michael has been working in IT security for nearly 20 years, with 11 of those spent servicing the United States Air Force, as well as private sector Defense and Aerospace contracting firms. Michael maintains several certifications issued by CompTIA, ISC2, and Microsoft – including Security+ and Certified Information Systems Security Professional (CISSP). He has deployed extensive and intricate cybersecurity solutions throughout his career and has the experience necessary to ensure our client IT infrastructures are safe from crippling cyber threats in today’s evolving and complex digital world.

Since joining Kaytuso, Michael has reformed our approach to cybersecurity by applying his expertise in NIST Cybersecurity and Risk Management frameworks and the Center for Internet Security’s 20 CIS Controls™ to our own internal systems as well as our clients’. He’s enforced several security safeguards such as multifactor authentication, strong baseline security configurations, proper access controls, and updated written security policies and procedures. He’s also been responsible for packaging our solutions as flexible and comprehensive offerings. Thanks to Michael’s leadership, we can provide further assurance that all our solutions and services follow industry best-practices – and that each of our clients’ critical information technology systems will be best protected and secured from debilitating cyber risks and vulnerabilities.

Senior Staff / Management

All great companies start with exceptional leadership. Our senior staff and management team provides the foundation for applying best practices to achieve success while maintaining the most critical core value - which is applying a client-centric approach in all that we do.

Jackie - Director of IT Services


Vice President of Operations

Gavin - Network Operations Center Manager


Network Operations Center Manager

Jonathan - Director of Client Services


Director of Client Services

Alex - Solutions Deployment Manager


Vice President of Strategy

Shaomin - Technical Lead


Technical Lead

Andrew - Service Manager


Service Manager

Bella - Human Resources Manager


Senior Accountant / HR Manager

Yafees - Marketing Manager


Marketing Manager

Our Exceptional Team

Our exceptional IT services team consists not only of world-class security experts - but full-time network engineers, technicians, help desk specialists, software developers, and more. A unifying philosophy is instilled in every team member to not only get a job done but to get it done right - ensuring we continue to build a sense of reliability and trust with all of our clients. Our administrative staff keeps our ship sailing smoothly by enabling us to separate business functions from service delivery. With a concerted effort to build a company culture based on collaboration, learning, and all-around fun, we've managed to draw some of the best talents in one of the most competitive markets in the world.

Our Exceptional Team

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