Senior IT Administrator - Hybrid

The Senior IT Administrator owns day-to-day IT support and administration for approximately 150 employees across the US and UK. This role serves as the primary point of contact for IT support while leading projects and automation that consolidate IT systems into a unified, largely automated operation. A central priority is standardizing the organization on Apple, with every employee using a managed Mac and Windows laptops retired.

As automation and self-service reduce routine support work, the role will increasingly focus on systems projects, security operations, and engineering improvements, creating a path toward systems and security engineering.

The organization is bringing its IT environment together across a 150-person workforce in the US and UK. Operating in the financial services compliance space requires rigorous security controls, audit-ready access management, and responsive, reliable IT support.

This role helps ensure seamless IT operations while automating manual workflows, consolidating infrastructure, moving to a fully managed Mac endpoint environment, and maintaining a strong security posture. Dedicated ownership of daily support and strategic automation helps protect employee productivity, onboarding, security compliance, and the broader integration timeline.

• IT Support — Serve as the primary point of contact for IT help across 150+ employees in the US and UK. Resolve most requests independently, document solutions in runbooks and help articles, and identify recurring issues for automation or self-service.
• Automation & AI — Manage Claude-powered AI agents through Intercom to automate ticket triage, resolution, and common requests, shifting manual support work to automated workflows and creating capacity for projects and engineering.
• Joiner, Mover & Leaver Lifecycle — Own account provisioning across cloud identity and SaaS tools, device procurement and deployment, access control and reviews, and documented offboarding with security compliance evidence.
• IT Consolidation & Migration Projects — Lead system integrations, infrastructure unification, and tooling rationalization. Maintain documented plans, stakeholder communications, rollback procedures, and on-time delivery.
• Identity & Access (Okta) — Administer users, groups and group rules, app assignments, SSO and MFA policies, sign-in issues, and role-based access so employees have the appropriate applications from day one.
• Transition to 100% Mac — Move remaining Windows users to managed Macs, including communications, data migration, application compatibility and alternatives, and retirement of Windows laptops currently managed through Microsoft Intune.
• Device Management — Administer the Mac, iPhone, and iPad fleet through MDM (Iru, formerly Kandji), including zero-touch enrollment, baseline configuration, software updates, inventory, lifecycle management, procurement, and secure disposal. Mac is the only supported laptop platform; new employees are provisioned with Macs by default.
• Microsoft 365 & Collaboration — Administer Slack, Microsoft 365 (Exchange Online, SharePoint, and Teams), Box, and Zoom, maintaining appropriate access controls and external-sharing policies.
• Office & Network — Maintain the Austin headquarters environment, including network and Wi‑Fi, conference rooms, door access, and desk setups. Plan IT requirements for office changes.
• Security Operations — Enforce security baselines, conduct periodic access reviews, investigate security alerts, support security awareness training, and maintain audit-ready evidence for IT‑owned domains.

• IT support resolution times consistently meet or exceed SLAs, while repeat…