Networking
Designing stable, observable networks that keep distributed teams connected.
Zakariya Muhammad — Network Administrator · Infrastructure Specialist · Cybersecurity Enthusiast
Experienced IT professional specializing in enterprise networks, firewalls, infrastructure, CCTV, and cloud services—now expanding deeper into ethical hacking, penetration testing, and defensive security.

$ whoami Zakariya Muhammad Network & Infrastructure Specialist $ current-mission Strengthen the systems businesses depend on — and learn to defend them. █
I work where connectivity, infrastructure, and business continuity meet. My focus is making complex environments dependable, understandable, and secure.
My background spans multi-site network administration, firewalls, Windows infrastructure, virtualization, CCTV systems, call center platforms, backups, and disaster recovery. That operational foundation now anchors a deliberate transition into cybersecurity.
I am continuously learning ethical hacking, penetration testing, security assessment, and defensive practices—not as a departure from infrastructure, but as the next layer of doing it well.
From the physical layer to the security perimeter, I bring the cross-domain context required to solve operational problems properly.
Designing stable, observable networks that keep distributed teams connected.
Hardening the edge, controlling access, and keeping response practical.
Operating resilient compute, identity, backup, and recovery platforms.
Connecting physical security systems to dependable enterprise infrastructure.
Hands-on responsibility across the systems that support day-to-day operations, growth, and recovery.
Supporting multi-site networks, Windows services, identity, virtualization, and business-critical platforms.
Sophos policy administration, network segmentation, hardening, backups, incident support, and practical recovery planning.
Designing and operating surveillance, NVR/VMS, telephony, and high-availability service infrastructure.
Representative engagements across network operations, security modernization, availability, and observability.
Managing resilient connectivity and core infrastructure across multiple business locations.
Maintain service continuity across distributed sites with different operational demands.
A more standardized, visible, and supportable network environment.
Purpose-built applications spanning cybersecurity, network operations, and personal performance.
Progress is tracked through focused study, hands-on labs, and documented learning—not just completed courses.
A practical framework for segmentation, naming, and operational clarity in growing networks.
Read insightWhy policy naming, ownership, and review cadence matter as much as the rule itself.
Read insightThe skills that transfer, the gaps to close, and how I am structuring the journey.
Read insightHave an infrastructure challenge, a security opportunity, or simply want to compare notes? I would be glad to hear from you.