Sarah Robertson
Atlanta
Summary
Results-driven Systems Administrator and Infrastructure Support Specialist with 10+ years of experience supporting enterprise environments, administering Microsoft 365 and Active Directory, managing network infrastructure, and delivering exceptional end-user support. Proven expertise in troubleshooting complex technical issues, administering Cisco Meraki networks, supporting server environments, and implementing technology solutions that improve operational efficiency. Recognized for strong problem-solving abilities, technical leadership, and a commitment to continuous learning and service excellence.
Overview
11
11
years of professional experience
1
1
Certification
Work History
Systems and Support Analyst
Mingledorff's Inc.
Peachtree Corners, GA
01.2024 - Current
- Administer Microsoft 365, Exchange, Active Directory, and server environments supporting business-critical operations.
- Configure and maintain Cisco Meraki switches, routers, firewalls, and network-connected devices to ensure secure and reliable connectivity.
- Manage endpoint lifecycle operations including workstation imaging, deployment, maintenance, and hardware procurement.
- Support enterprise printers, scanners, copiers, production equipment, and mobile devices across multiple locations.
- Monitor infrastructure performance, identify operational risks, and implement corrective actions to improve service reliability.
- Coordinate onboarding, technical training, and end-user support initiatives to enhance productivity and user satisfaction.
- Collaborate with cross-functional teams to ensure compliance with organizational IT policies and standards.
- Provide Voice of the Customer (VOC) feedback and operational reporting to support continuous service improvement.
IT Specialist
McGinnis Woods School
Alpharetta, GA
01.2023 - 01.2024
- Administered Apple device ecosystems, Mobile Device Management (MDM) platforms, and network infrastructure supporting faculty, staff, and students.
- Managed IP-based PBX phone systems, firewall configurations, and network security controls to maintain communication services and system availability.
- Provided Tier 1–2 technical support for hardware, software, and network connectivity issues utilizing advanced troubleshooting and root cause analysis.
- Developed technical documentation, delivered end-user training, and coordinated with vendors to support technology deployments and infrastructure enhancements.
- Supported video production, live streaming, and classroom technology integration projects to improve digital learning capabilities.
IT Assistant
Lin Rogers Electric
Alpharetta, GA
01.2022 - 01.2023
- Delivered enterprise desktop, network, and application support for 1,500+ users across 20 locations, ensuring reliable access to business-critical systems and services.
- Administered user account lifecycle management, technology asset inventories, software licensing, and vendor relationships within a multi-site environment.
- Managed IT budgeting, procurement initiatives, technology accounts, and system maintenance activities supporting operational efficiency.
- Provided technical support for Salesforce, Siebel, Microsoft Office, and other enterprise applications, resolving user issues and improving system utilization.
- Facilitated user onboarding, training, and process documentation for workflow systems and business applications.
- Maintained operational reporting, data tracking, and cross-functional communications supporting business operations and decision-making.
Front Office Assistant
Bosley
Atlanta, GA
01.2019 - 01.2022
- Managed patient scheduling, customer communications, and administrative operations within a fast-paced medical environment.
- Maintained accurate records, coordinated appointments, and supported daily office operations while ensuring exceptional customer service.
- Assisted with reporting, documentation, and process coordination to support organizational efficiency.
- Collaborated with clinical and administrative teams to maintain smooth operational workflows.
Geek Squad Advanced Repair Agent
Best Buy
Atlanta, GA
01.2015 - 01.2021
- Diagnosed and repaired Windows and macOS systems, resolving hardware, software, and operating system issues.
- Performed advanced troubleshooting, system upgrades, malware remediation, and device configuration services.
- Managed service requests, documented technical resolutions, and maintained high customer satisfaction ratings.
- Assisted customers with technology consultations, hardware recommendations, and system optimization solutions.
Education
Bachelor of Graphic Design -
American InterContinental University
Medical Terminology Certificate - undefined
Des Moines University
Skills
- Microsoft 365 expertise
- Exchange Online administration
- Active Directory administration
- Windows Server management
- Group policy management
- SharePoint collaboration tools
- Proficient in Entra ID management
- Proficient in Cisco Meraki
- Cisco ASA firewall management
- Routing and switching knowledge
- TCP/IP configuration skills
- Network address allocation
- Secure VPN access
- VoIP / IP Telephony
- Microsoft Intune
- Jamf software management
- Mobile Device Management (MDM)
- Deployment management
- Lifecycle management of hardware
- Risk evaluation
- Asset Management
- Vendor coordination expertise
- SLA performance tracking
- Knowledge of security standards
- Technical content creation
- End-user training
- Jira project management
- Proficient in Confluence
- Salesforce proficiency
- Experience with Siebel software
- Experienced with Zoom Phone features
- Experience with Polycom technology
- Skilled in using Microsoft Office tools
- Support ticketing systems
- Application support
- Incident management
- ITIL processes
Certification
- CompTIA Network+ (Planned)
- Cisco Certified Network Associate (CCNA) (Planned)
- Microsoft Azure Administrator (AZ-104) (Planned)
Timeline
Systems and Support Analyst
Mingledorff's Inc.
01.2024 - Current
IT Specialist
McGinnis Woods School
01.2023 - 01.2024
IT Assistant
Lin Rogers Electric
01.2022 - 01.2023
Front Office Assistant
Bosley
01.2019 - 01.2022
Geek Squad Advanced Repair Agent
Best Buy
01.2015 - 01.2021
Medical Terminology Certificate - undefined
Des Moines University
Bachelor of Graphic Design -
American InterContinental University
CORE STRENGTHS
Systems Administration; Infrastructure Support; Network Troubleshooting; Technical Problem Solving; End-User Support; IT Operations; Vendor Management; Documentation & Training; Process Improvement; Customer Service Excellence; Root Cause Analysis; Cross-Functional Collaboration