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It Manager / System Administrator

Location:
Frisco, TX
Posted:
September 15, 2025

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Resume:

Michael Etheridge

************@*****.*** • 214-***-****

LinkedIn• Frisco, TX

System Administrator / Network Engineer / IT Manager

Building Scalable and Secure Network Infrastructures that drive Organizational Growth, enhance Cybersecurity, and Optimize Team Performance for Operational Excellence!

Strategic and hands-on IT leader with over two decades of experience configuring lean, scalable network infrastructure to support organizational growth, cybersecurity, software development, and data management across diverse sectors, including Health Care, Legal, Manufacturing, Government, and Public Services. Known for exceptional communication skills, effectively collaborating with senior management and stakeholders to deliver workable IT solutions for automation, process improvement, and team performance. Passionate about staying current with industry trends and emerging technologies while mentoring and developing high-performing, dispersed teams. Dependable and adaptable, with a proven track record in configuring VMWare, Azure, AWS, and Hyper-V technologies, driving operational efficiency, and delivering on key business objectives. Proficient in leveraging Generative AI like ChatGPT to enhance data management, cybersecurity, and software development processes.

Areas of Expertise

Network Architecture

Cybersecurity

Cloud Computing

Office 365

VOIP

Vendor Negotiations

Remote Support

Network Protocols

Infrastructure Management

Virtualization

Network Troubleshooting

Microsoft Active Directory

Cisco Meraki

IT Manager

Network Performance Optimization

Data Center Management

Wireless Technologies

Cisco switches and routers

Microsoft Technologies

AWS and Azure

Technical Proficiencies

AWS & Cloud Services Active Directory/Group Policy/Role Based Access Control RBAC Systems Administration Accounting Software MS Technologies: SCCM/SCOM MS Exchange MS Visio MS SQL Server MS Azure MPLS Cisco Switches SonicWALL Firewall Windows Server 2008-2019 VMware vCenter DNS DHCP VDI Sales Force VMotion NAS Kaseya Solar Winds DAS NVR HD-SDI HD-TVI PTZ DVR TCPIP VLAN RAID ISCSI PC Mac MFA IIS MS Power Apps SharePoint Cloud CRM ERP Window Server 2012 R2 PowerShell Project Management Windows Applications NAT BGP OSPF SMTP VOIP FTP RDP LOGMEIN Connect Wise Telnet SIP Asterisk PBX PBXtra 3CX Skype Zoom WordPress Video Conference MPEG IOT VPN Cisco Meraki Microsoft Purview

Career Experience

Witherite Law Group Mar 2025 – Present

System Administrator / DevOps Engineer

At Witherite Law Group, I serve as the Systems Administrator and DevOps Engineer responsible for managing a fully Azure-based enterprise environment. I play a critical role in designing, deploying, and optimizing cloud infrastructure, automation pipelines, and security frameworks. I ensure high system availability, implement advanced compliance strategies, and support legal operations through Microsoft Purview investigations. I use Purview to do keyword and date-bound queries related to litigation and case data. I've also worked on a SharePoint restructuring project to improve firm-wide document management. I work with tier one support on issues related to the onboarding of new PCs, Macs, and iPhones through Intune and Apple Business Manager. I've also conducted a root cause analysis of a Dell hardware issue that impacted the entire firm, working directly with vendors to isolate and remediate the problem. I serve as a mentor for the tier one support staff when they have questions. I authored the firm’s entire suite of IT security and compliance policies in preparation for a successful insurance audit.

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Manage A pure Azure infrastructure, including identity services, virtual networks, cloud storage, and Virtual Machines.

Developed and enforced security, server, endpoint, backup, and network policies to meet insurance audit requirements.

Collaborated with DevOps teams on system deployments, CI/CD processes, and infrastructure automation.

Administered Azure AD, Intune, Conditional Access, and compliance configurations across a hybrid user environment (Windows, macOS, iOS).

Wrote and implemented IT policy documentation from the ground up, aligning with best practices and audit controls.

Created and maintained automation workflows with PowerShell, Power Automate, and Logic Apps to improve IT operational efficiency.

Served as a key point of contact between internal teams and MSPs for issue escalation, project coordination, and vendor compliance.

Monitored system performance and security alerts, proactively remediating risks to ensure continuous uptime and data protection.

Administered Microsoft 365, including Exchange Online, Microsoft Purview for compliance searches, eDiscovery, and mailbox management.

Swiss Obgyn Mar 2024 – Mar 2025

IT Operations Engineer

Manage all functions of IT for Obgyn Medical Practice. Acting as both an IT decision-maker and an engineer. Focused on maintaining and supporting IT infrastructure and software critical to healthcare operations. Expertise in managing and configuring hybrid environments with Azure, Windows 11, and macOS systems, VMware servers, and Athena medical practice software. Decision Maker for all IT hardware and software, including upgrades and maintenance to LAN infrastructure.

Managed and maintained Windows 10 and mac OS environments, ensuring seamless operations and compatibility.

Administered VMware servers and supported Athena medical practice software, enhancing system reliability and performance

Support and optimize the Altigen VoIP Phone system, streamlining communications across the practice.

Oversee configuration and maintenance of routers and switches, ensuring secure and efficient network functionality.

Provide comprehensive support for Office 365 applications (Word, PowerPoint, SharePoint, Excel), enabling productivity and collaboration across teams.

Cloud Migration of on-premises Exchange and Microsoft Active Directory

Established and enforced IT security policies to protect business-critical data while ensuring compliance with industry regulations and best practices

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Trend Micro, Las Colinas Nov 2020 – Mar 2024

Senior Customer Service Engineer/CSE

The Enterprise Engineer role involved supporting diverse enterprise customers and enhancing product functionality. Certified expert in multiple Trend Cyber Security products with training in Linux and PC platforms. Collaborated on product enhancements and proof-of-concept installations for large clients. Developed scripts for various environments to meet unique customer requirements. Engaged with clients to optimize AWS, Azure, VMware, and VDI infrastructures, leveraging Active Directory expertise to implement access controls and policy management.

Supported Trends Cloud, hybrid, and on-premises product suites for enterprise customers, enhancing overall service delivery.

Achieved top 5 ranking among engineers for the highest number of cases closed, demonstrating efficiency in problem resolution.

Managed caseloads of 50-60 cases simultaneously, ensuring timely responses to customer inquiries.

Created AWS labs to simulate customer environments, providing practical solutions for real-world challenges.

Configured and optimized advanced security solutions, including antivirus, EDR, XDR, and firewalls, to improve client security posture.

Managed case load of 40 -50 cases

Certified Expert in Trend Micro’s Enterprise Cybersecurity products

Binford Supply, LLC., Balch Springs, TX Mar 2014 – Mar 2020

Director of Information Technology/ Chief

Orchestrated comprehensive network systems for seamless performance, executed migration to Inform DDI ERP system, and collaborated with the CFO and external leaders to formulate and implement technology strategies. Spearheaded transformative initiatives, including the deployment of a state-of-the-art 3CX telecommunications system and the strategic development of a high-performing IT team. Cultivated a high-performing IT team by expanding resources to meet business demands, migrating critical virtual machines to the Azure cloud. Formulated and implemented technology strategies tailored to complement the company's growth objectives, focusing on cost-effective solutions to enhance customer experience and staff usability. Enhanced operational efficiencies, boosted company-wide productivity and customer satisfaction

Enhanced technological infrastructure of a rapidly expanding $100M manufacturing organization with 13 branches, ensuring operational excellence and strategic growth across various IT disciplines.

Created the company’s first Help Desk system using SharePoint, streamlining issue tracking and resolution, and enhancing internal support efficiency.

Developed a custom sales team app using Microsoft Power Apps to log work hours, improving time management and boosting team productivity by 20%.

Migrated on-prem AD and Exchange to Entra ID and Exchange online.

Designed and implemented Binford's multi-branch network and VoIP infrastructure, ensuring seamless communication across 13 locations while enhancing system reliability and scalability.

Configured scalable, lean network infrastructure to support organizational growth, focusing on cybersecurity and data management for manufacturing.

Collaborated with senior management and stakeholders to deliver IT solutions that drive automation, process improvement, and team performance.

Managed comprehensive network systems to guarantee seamless performance and facilitate superior service delivery to over 100 employees across various locations.

Executed a three-month migration from legacy financial systems to the Inform DDI ERP system, unifying accounting records and improving data quality with minimal downtime across 13 branches.

Configured and supported group policy and Windows infrastructure.

TH Enterprises, Rockwall, TX Mar 2011 – Mar 2014

Senior Network Engineer

Leveraged expertise as lead network engineer for small to medium-sized businesses, aligning IT services with industry standards for Council of Governments (COGs), healthcare, drug rehabilitation, and assisted living sectors. Managed implementation of assisted living property projects, installing and configuring network and information security solutions, including VPNs, Firewalls, IDS, and layer 2 - 3 switches and virus software. Provisioned VMWare virtual machines, Microsoft servers, and cloud migrations. Demonstrated comprehensive knowledge of large-scale enterprise network operations and security measures for multiple COGs across various cities. Supervised network engineers to develop real-time failover solutions for San Bernardino COGs during grid or infrastructure failures. Led planning and technical design for routine operations and special projects, including designing an MPLS voice network for multiple COGs and drug rehabilitation sites.

Configured network protocols, diagrams, documentation, and training procedures to enhance issue resolution efficiency through root cause analysis and improved support response times.

Diagnosed and resolved complex network issues affecting multiple states, including California and Texas, ensuring consistent performance and reliability.

Overhauled Wi-Fi infrastructure for an enterprise senior care facility, deploying multi-VLAN wireless networks across eight floors using Cisco Aironet 3720s to support over 300 residents and staff.

Supported multiple medical practices using Athenahealth and E-meds systems

Oversaw management of large client networks and implemented information security policies to ensure compliance with HIPAA regulations governing assisted living facilities.

Configure and manage Active Directory (AD), DNS, DHCP, and Group Policy.

Migrated multiple clients from on-premises AD and Microsoft Exchange environments to Office 365 and Azure AD, enhancing scalability and accessibility.

Supported multiple SharePoint and Office 365 projects, including document management, help desk, and intranet solutions

Configured and supported Microsoft servers and group policy for every customer's environment

Deployed Windows 7-10 workstation images over multiple states to multiple branches for quick location build out

Network Nerds Inc., Rowlett, TX Jan 2000 – Feb 2010

CIO/Sr Network Engineer/Owner

Leveraged extensive experience across multiple IT companies in various roles to build and lead a successful startup IT service company, delivering strategic IT solutions to industries including healthcare, financial services, manufacturing, and law. As the founder and owner, I seamlessly managed multiple roles, including IT specialist, sales strategist, financial planner, collections manager, and budget analyst, ensuring the company’s growth and operational success.

Specialized in aligning business IT strategies with organizational directives, helping companies achieve their strategic and financial goals by implementing cost-effective, scalable, and innovative technology solutions that enhance operational efficiency and business performance.

Championed the adoption of green technologies, emphasizing sustainability as a core principle in the modern IT landscape.

Designed and deployed large-scale LAN, WAN, and telecom systems, optimizing network performance, scalability, and business continuity.

Developed advanced security and connectivity solutions by deploying IP network systems, enhancing protection while ensuring seamless connectivity across extensive networks.

Established and cultivated key partnerships, including a consultancy role with Frito-Lay, securing a significant contract and enhancing reputation as a trusted advisor in technical and business strategy.

Led digital transformation initiatives, including Mooyah’s strategic IT overhaul and a core system migration for a healthcare practice, modernizing operations and improving efficiency

Education

60 Hours towards Associate of Science in Digital Electronics Eastfield College, Mesquite, TX

Certifications

MCSE-NT4.0 MCITP 2008 R2 MCSA 2008 R2 MCTS Virtualization 2008 R2 - Hyper-V MCPS 2008R2 Citrix Certified

Currently pursuing CompTIA Security+ Certification



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