Sr. Network Security Engineer (Onsite/Direct Hire) – ATL 4755

Sr. Network Security Engineer (Onsite/Direct Hire) – 4755 ATL

Healthcare Infrastructure | Zero Trust | Multi‑Vendor | High‑Visibility Rol

eLocations: 100% onsite to start out in Alpharetta G

APay: $90-115K/yea

r
About the Ro

leTier4 is looking for a Senior Network Security Engineer who thrives in complex, multi‑vendor environments and loves turning chaotic networks into beautifully stable, secure architectures. If you enjoy solving real-world networking challenges, owning high‑impact projects, and representing engineering in executive‑level conversations, this role is for yo

u.This position supports a rapidly growing healthcare‑focused technology organization, where uptime is everything and no two networks look the sam

e.
What You’ll

DoNetwork Engineering & Security Leaders

• hipArchitect, deploy, and support LAN/WAN and wireless networks across multi‑site healthcare environments (Ubiquiti, Meraki, Cambium, Aruba, Cisco, Rucku
• s).Configure and maintain next‑gen firewalls (Palo Alto, Fortinet, SonicWall, Meraki) across diverse environmen
• ts.Lead Zero Trust initiatives, includi
• ng:Z
• TNANetwork Access Control (N
• AC)Micro‑segmentat
• ionVPN reduction & identity‑based access strateg

iesAdvanced Troubleshooting & Escalat

• ionServe as Tier 3 escalation (approx. 70% of workloa
• d).Diagnose and resolve high-impact issues including spanning tree loops, routing anomalies, physical mispatch events, rogue devices, and wireless instabili
• ty.Perform deep traffic analysis, packet captures, and threat analytics using NetFlow, Auvik, and firewall telemet

ry.Project Engineer

• ingExecute projects ranging from small firewall upgrades to large-scale deployments involvi
• ng:50–70 switc
• hes400–500 access poi
• ntsMultiple redundant firewa
• llsSupport technology refreshes across newly onboarded communities with widely varying equipment and configuratio

ns.Client Interaction & Executive Prese

• nceRepresent the Network Engineering function in high-visibility meeti
• ngsInterface with IT Directors, CIOs, CTOs, and virtual IT leaders — requiring exceptional communication and professionali
• sm.Partner with community-level leadership (Chicago) and internal NOC teams (Alpharetta) as need

ed.Documentation & Standa

• rdsMaintain network baselines, configuration repositories, documentation, and disaster‑ready backu
• ps.Contribute to SIEM integrations and ongoing hardening of the security postu
• re.Mentor L2/L3 engineers and help level up team capabili

ty.
Technical Exper

• tise7 years of senior-level network security engineering experie
• nce.Strong multi‑vendor background — Cisco, Meraki, Palo Alto, Fortinet, SonicWall, Ubiquiti, Ruckus,
• etc.Deep knowledge
• of:Routing & switc
• hingVLAN segmentation &
• VRFsQoS, DNS,
• NAT802.1X, RADIUS, EAP
• -TLSIDS/IPS, DNS filtering, gateway security la
• yersExperience with Auvik or similar monitoring and packet capture to
• ols.Ability to operate effectively in environments with limited physical control (mispatching, unmanaged local changes, et
• c.).Broad familiarization with adjacent IT domains (Windows servers, infrastructure, general enterprise syste

ms).Soft Sk

• illsOutstanding communication skills with the ability to converse confidently with senior IT executi
• ves.Highly self-managed — able to operate remotely with limited oversi