Portfolio

David K

Summary

I am an experienced IT professional with over a decade of expertise in systems and network administration, IT management, and service desk operations. Throughout my career, I’ve successfully designed, implemented, and maintained IT infrastructures that support seamless operations, including Windows Servers, Active Directory, Cisco networking devices, and Microsoft 365. I’ve gained hands-on experience with virtualization technologies like Hyper-V and VMware, as well as cloud platforms such as AWS and Azure. My work spans various industries, including healthcare, agriculture, and hospitality, where I’ve managed large-scale projects, led teams, and ensured compliance with security standards. I take pride in problem-solving, streamlining processes, and fostering collaboration to achieve organizational goals.

As I continue to grow in my career, I’m actively seeking opportunities for mentorship to further strengthen my skills and expand my knowledge. I am eager to learn from experienced leaders in the field who can guide me in refining my technical expertise and leadership capabilities. With a dedication to continuous improvement and professional development, I’m committed to not only enhancing my own abilities but also driving innovation and success in every organization I contribute to.

Skills

• Windows Servers (2012, 2016, 2019, 2022), Active Directory, GPO, DNS, DHCP
• Cisco Catalyst Switches, Cisco Meraki, Cisco ASA
• Hyper-V, VMware, Backup and Recovery
• Microsoft 365 (MS 365), PowerShell, Python, Azure AD
• Cloud Computing (AWS, Azure)
• Service Desk Ticketing, Communication, Leadership
• Time Management, Conflict Resolution, Adaptability

Experience

Systems Administrator / IT Manager

Tentamus North America | Remote | 2024 - Present

• Designed, implemented, and maintained IT infrastructure.
• Administered Microsoft 365, Hyper-V, VMware environments.
• Configured Cisco switches, Meraki devices, and managed networks.
• Proactively monitored server health to ensure 99.9% uptime.

IT Manager / Director

Illinois Soybean Association | Bloomington, Lombard, IL | 2021 - 2024

• Led IT infrastructure management and security compliance.
• Implemented VPNs, VLANs, and transitioned to Cisco Meraki hardware.
• Supported marketing with hosted domains on GoDaddy, HubSpot, and WordPress.

Director of IT / Sr Systems & Network Administrator

Hollywood Casino Aurora / Joliet | Aurora, Joliet, IL | 2019 - 2021

• Managed hybrid cloud and on-premises environments using VMware.
• Oversaw PCI and SOX audits, maintaining compliance.
• Configured and deployed Cisco Call Manager and network hardware.

Education

• Cyber Security Bootcamp, UChicago (Present - 2025)
• Certified Wireless Admin (UEWA), Ubiquiti UniFi (2022)
• Bachelor of Science - Computer Science / Info Security Systems, University of Phoenix (2012)