Senior Systems & Security Administrator (Hands-On Role)

About the Role

MRA is seeking a senior-level IT professional to take full ownership of our technological environment across two locations supporting approximately 120 employees. This is a hands-on, single-owner IT role where you will be responsible for both strategic infrastructure oversight and day-to-day employee support. The ideal candidate is comfortable leading architecture decisions in the morning and assisting a user with device setup in the afternoon. This is a balanced leadership role requiring technical depth, accountability, and service orientation.

Responsibilities

Infrastructure & Security

• Firewall and network management (segmentation, policy review, firmware updates)
• Microsoft 365 & Azure administration
• Endpoint security (EDR/XDR)
• Backup & disaster recovery planning and testing
• Patch management
• Vendor management and licensing oversight
• IT documentation and standards development
• Technology roadmap planning

Daily IT Operations

• Employee helpdesk support (onsite & remote)
• New hire onboarding (device provisioning, account setup)
• Offboarding procedures
• Laptop/desktop imaging and deployment
• Mobile device management
• Troubleshooting hardware/software issues
• Managing support tickets and prioritization

Environment Overview

• Two physical locations
• ~120 employees
• Hybrid workforce
• Microsoft 365 ecosystem
• Firewall-based security architecture

Security and uptime are top priorities. No additional internal IT staff currently.

Requirements

Qualifications

• 7+ years of progressive IT experience
• Experience serving as primary or sole IT resource
• Strong network & firewall administration experience (Fortinet preferred)
• Microsoft 365 & Azure administration
• Backup and disaster recovery management
• Endpoint security & patching oversight
• Experience managing IT vendors and licensing
• Strong troubleshooting skills across hardware, OS, and applications
• Ability to balance strategic planning with day-to-day support

Personal Attributes

• Ownership mindset
• Calm under pressure
• Service-oriented but not reactive
• Organized and documentation-focused
• Strong communicator with leadership and staff
• Able to prioritize effectively in a fast-moving environment

What Success Looks Like (First 12 Months)

• Strengthened security posture
• Stabilized and well-documented infrastructure
• Predictable IT processes
• Reduced reactive support volume
• Clear multi-year technology roadmap