Senior Network Security Engineer – Firewall/IPS

IT Coalition

Senior Network Security Engineer responsible for planning and implementing organization's information security. Requires extensive IT experience with specific networking security technologies.

Posted 6/9/2026full-timeWashington • District of Columbia, Washington • 🇺🇸 United StatesSeniorWebsite

Tech Stack

Tools & technologies

FirewallsSwitching

About the role

Key responsibilities & impact

Plans, coordinates, and implements the organization’s information security.
Analyzes requirements and potential solutions for technical and economic feasibility.
Design optimized firewall and IPS rule structure and ensures standards are maintained.
Monitors and maintains health of all firewalls/IPS and recommends improvements.
Develops and maintains documentation of firewall/IPS procedures.
Develops and maintains complex schematics relating to network security.
Researches, evaluates, recommends, designs, tests, and implements new network security technologies.
Displays expert knowledge of current security tools and practices.
Under general guidance, provides support to network engineers.

Requirements

What you’ll need

10+ years of IT experience, required
Bachelor’s Degree, strongly preferred
Mandatory hands-on experience with the following technologies: Cisco Identity Services Engine (ISE) – upgrade, licensing, maintenance, and deployment
Cisco Firepower – upgrade, maintenance, and deployment
Cisco migration from ASA to Firepower Threat Defense (FTD) mode
Cisco 802.1X – ongoing deployment
DMVPN design and deployment, compliant with CNSSP-15
Juniper ADVPN
Good working understanding of the following routing protocols: OSPF, EIGRP, BGP
CERTIFICATIONS: CCNP Security – Strongly preferred
CCNP Enterprise (Routing & Switching) – Strongly preferred
CCDP – preferred
SECURITY CLEARANCE REQUIREMENTS: Active Top Secret, required

Benefits

Comp & perks

Health, Dental and Vision
401(k)
Flexible Spending Account (FSA)
11 Paid Federal Holidays
PTO
education reimbursement

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

firewall designIPS rule structurenetwork security documentationnetwork security technologiesCisco Identity Services Engine (ISE)Cisco FirepowerCisco ASA to Firepower Threat Defense (FTD)Cisco 802.1XDMVPN designrouting protocols (OSPF, EIGRP, BGP)

Soft Skills

planningcoordinationanalysisrecommendationsupport

Certifications

CCNP SecurityCCNP Enterprise (Routing & Switching)CCDP