Read the resume
Ten-plus years of datacenter, cloud, and DoD security-compliance work, on one page — with a downloadable PDF.
View resume SENIOR SYSTEMS ADMINISTRATOR & SITE LEAD · RIDGECREST, CA
Infrastructure that
earns its uptime.
I'm Umer Mahmood — a Senior Systems Administrator and Site Lead with over ten years securing and optimizing datacenter and cloud environments: virtualization (Nutanix, VMware), AWS, Windows and Linux administration, and DoD security compliance (STIG, RMF, ATO).
HIGHLIGHTS7+ successful DoD ATOs100+ VMs migrated to Nutanix HCI$100K+/year saved via microsegmentation12-administrator team lead
01 / PROFILEThe person behind
The person behind
the uptime.
The resume and the profiles — plus the self-hosted GitLab where the day-to-day engineering actually happens.
Connect on LinkedIn
Work history, recommendations, and the best place to reach me professionally.
Open LinkedInBrowse the profile
My public GitHub profile — open-source work and experiments land here.
Open GitHubWhere the work lives
Day-to-day project work and CI run on a self-hosted GitLab on my own VPS. It's live — the projects behind it are private, so you'll land on the sign-in.
Open GitLab02 / PROJECTSBuilt for the work
Built for the work
I actually do.
DoD compliance tooling and a log platform — one live product site and two engineering deep dives.
Tour Lantern
A terminal-native log investigation tool with search, dashboards, and alerts — explore the full product site.
Explore Lanternnetstig
Python CLI that pulls network-device configs, audits them against STIG baselines, and emits .ckl checklists for ATO packages.
Read the deep diveSTIG Checklist Editor
Go + Wails desktop editor for DoD STIG checklists — import Cyber Exchange packages, review, export CKL and CKLB.
Read the deep dive