Network Infrastructure Design and Administration
LAN, WAN, VLAN segmentation, routing and switching configuration, firewall policy, and DNS/DHCP management.
Network and Infrastructure Consulting · Belleville, NJ · NYC Metro
Subnet Works
Network and infrastructure consulting for NYC-metro businesses that cannot afford downtime.
From ground-up network design to infrastructure assessment to ongoing remote administration, Subnet Works delivers hands-on expertise across the full stack.
3+
Years Operating
CCNA
Cisco Certified
Net+
CompTIA Certified
NYC Metro
Onsite Service Area
Services
What Subnet Works does
Every engagement is handled directly by a certified network and infrastructure professional. No account managers. No ticket queues. The same engineer scopes, implements, and supports.
Systems and Server Administration
Linux and Windows Server deployment, Docker containerization, virtualization, backup pipelines, and performance monitoring.
Security and Remote Access
Zero Trust access architecture, VPN configuration, intrusion detection, SSO integration, and reverse proxy hardening.
Infrastructure Assessment and Consulting
Onsite and remote infrastructure audits, capacity planning, and technology roadmaps aligned to budget.
About
One engineer, direct engagement
Subnet Works is an independent IT and network consulting practice serving small and mid-market businesses in the NYC metro. Every engagement is handled directly by a certified network and infrastructure professional with production experience across routing, switching, virtualization, and security.
Michael Guallpa, Cisco CCNA 200-301 and CompTIA Network+, handles all client work directly from scoping through delivery.
AWS Solutions Architect
In progress
How we work
Three steps from problem to resolution
Assess
A short discovery call and, when useful, a paid infrastructure assessment with a written report covering topology, security posture, capacity, and prioritized remediations.
Design and implement
Clear scope agreed in writing before work begins. Fixed-fee or hourly. Documented changes, change windows agreed in advance. No surprise invoices.
Support
Retainer or per-incident. The same engineer who built it supports it. Documentation handed over so any future successor can pick up cleanly.
FAQ
Common questions
Do you work with businesses outside the NYC metro?
Onsite work is limited to the greater NYC metro area, including Essex, Bergen, Hudson, Passaic, and Union counties in NJ and the five NYC boroughs. Remote engagements are available for existing clients with an established working relationship.
What size of business do you typically work with?
Most clients are small and mid-market businesses in the 10 to 150-seat range. Subnet Works does not have a minimum seat count. If the scope fits the model, we can work together.
Do you resell hardware or software?
No. Subnet Works does not mark up hardware or software. Recommendations are vendor-neutral. If a purchase is needed, the client buys directly.
What happens if I already have an IT provider?
Subnet Works can work alongside an existing IT provider, focusing on a specific scope such as a network buildout, security review, or server migration. All changes are documented so your existing provider can take over.
How are engagements billed?
Infrastructure assessments are fixed-fee starting at $350. Project work is billed at $95/hour with scope agreed in writing before work begins. Retainer coverage starts at $600/month for a defined block of hours with rollover.