Designs, implements, maintains, and supports Windows-based infrastructure, cloud platforms, servers, networks, and client systems. Responsibilities include system performance optimization, technical troubleshooting, cybersecurity, disaster recovery, documentation, and technology research. The role provides expert support to multiple clients and includes occasional onsite visits throughout the NYC metro area. Candidates must manage complex IT projects, communicate effectively, and have strong systems administration, cloud, networking, scripting, and security knowledge.