Senior IT Systems Administrator

Circle Internet Financial•New York City, NY

11d•Onsite

About The Position

The Senior IT Systems Administrator is a hands-on role based onsite at Circle’s New York City office, Monday through Friday, full-time. The administrator maintains and improves Circle’s Mac environment, office network, and audio-visual systems while providing white-glove support to executives and employees in the office, remote support to the remote-first workforce, and live support for meetings and onsite events. The role involves a fast-paced environment with frequent walk-ups and interruptions and is part of a 24x7 global IT team. The role also supports office security systems, IT business continuity and disaster recovery, and cybersecurity initiatives. The administrator keeps runbooks and escalation paths current and uses AI tools to streamline troubleshooting, debugging, and routine work.

Requirements

Ability to work onsite at the New York City office Monday through Friday, full-time, with occasional after-hours support for events.
At least 3 years of hands-on experience deploying, configuring, and administering macOS systems, MacBooks, and related peripherals, including MDM such as Iru or Workspace ONE, enterprise SaaS and IT systems such as Google Workspace, Slack, and Okta, and network troubleshooting.
At least 3 years of experience in a customer-facing support role, including white-glove technical support for executives or senior staff.
Experience working tickets in ServiceNow or a similar ticketing system.
Hands-on networking experience with Cisco Meraki, firewalls, managed switches, VLANs, and routers.
Experience with conference room systems and A/V installations, including Zoom Rooms or similar platforms.
Experience supporting business continuity and disaster recovery, including plan testing, backup and recovery, and restoring systems after a disruption.
Experience working with a security team on access control, monitoring, vulnerability management, firewalls, and incident response.
Experience using AI tools to streamline work, troubleshooting, and debugging.

Nice To Haves

Experience administering Linux and Windows Server.
Ability to code in Golang, Python, or shell.
Experience with Terraform and Ansible.
Experience running live audio-video for large events.

Responsibilities

Provide white-glove software, hardware, and network support to onsite executives, employees, traveling teams, and visiting customers.
Provide remote support to employees working outside the office.
Log, assign, track, and verify incidents and service requests through resolution in the ticketing system, including computer, printer, and internal application team requests.
Deploy, configure, and maintain MacBooks and peripherals, and manage them through Iru (MDM).
Maintain the office network, including Cisco Meraki equipment, firewalls, managed switches, VLANs, and routers.
Support office audio-visual systems, including conference rooms using Zoom or Google Meet, presentation boards, and displays.
Operate and troubleshoot live audio, camera, and display equipment during large presentations and events, including occasional evening events.
Manage and troubleshoot office security systems, including facial recognition, security cameras, and card readers.
Support office business continuity and disaster recovery through planning, documentation, testing, and recovery readiness.
Participate in semiannual disaster recovery tests; verify replication, redundancy, backups, and archiving; identify gaps; and restore servers, networks, and applications.
Partner with the cybersecurity team to enforce security policies, manage network access, monitor suspicious activity and vulnerabilities, and help respond to and remediate incidents.
Use AI tools to speed up troubleshooting, debugging, and routine work.
Keep runbooks current, including escalation paths.