Raymond PaganiniPresident and CEO
Ray Paganini founded Cornerstone IT in 1994 as Paganini Development Team. Paganini has since grown Cornerstone IT into a full-service Microsoft Partner IT firm providing managed IT services, IT infrastructure support, IT disaster recovery, web and application development and cloud hosting services.
Josh RosenVP of Sales
Josh Rosen provides sales support services to Cornerstone IT clients including customer relationship management. Areas of expertise include Microsoft products, foreign and domestic negotiations, business planning and deployment, system administration and creative business solutions.
Rosen joined Cornerstone IT in 2012 with previous industry experience as an IT/AV developer, IT manager and systems consultant. Josh is committed to providing clients with best-in-class managed IT solutions and has worked towards earning several titles and certifications since joining the team, including:
• Microsoft P-Seller Certified Solutions Architect (P-CSA)
• Microsoft Cloud Immersion Facilitator
• Microsoft Azure Solutions Architect Expert
• Certified SonicWall Security Professional (CSSP)
• Leadership Lake County Community Builder Graduate
• Leadership Lake County Signature Program Graduate
Todd WeisfeldVP of Client Services
Todd Weisfeld provides leadership and management of client accounts, and is responsible for internal development and expanding new business.
Weisfeld specializes in project leadership for networking projects including AD, Microsoft Exchange, Microsoft Dynamics, Office 365 and Cloud Migrations.
Ellen PrilesonManager of Accounting & HR/ Benefits
Since 2005, Ellen has been responsible for managing the preparation and evaluation of all financial records, as well as human resources and benefits. Ellen also focuses on continuous improvement in the following areas: managing client credit, vendor relations, cash flow management, payroll, employee benefits, internal systems evaluations, and all government related business transactions. Prior to Cornerstone, Ellen was employed by the Lubrizol Corporation where she held positions as a Manager with the Facilities Group, a Senior Data Specialist in Corporate Finance, and an R&D Lab Technician.