Network Firewalls Engineer Jobs

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Senior Network Security Engineer

Start to End Networks LLC Washington, DC

Washington, DC

Today

Full time Senior Cyber Security Cybersecurity Operations

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Job Description

Support a large federal customer in Washington, DC as a Tier 3 network security specialist responsible for securing and operating enterprise network infrastructure.

Responsibilities

Administer, configure, maintain, and troubleshoot Check Point firewalls in high-availability (HA) configurations
Manage firewall security policies and access rules, including NAT policies, routing, software upgrades, and security patches
Support Check Point Harmony for remote-access VPN connectivity
Configure, monitor, and troubleshoot Check Point IPS/IDS (Intrusion Prevention and Intrusion Detection)
Investigate network security incidents, connectivity problems, and service outages
Provide Tier 3 escalation support for complex network security issues
Configure and support Cisco Catalyst switches and other enterprise network infrastructure
Implement and troubleshoot IEEE 802.1X network access control integrated with Cisco Identity Services Engine (ISE)
Use network tools such as Cisco DNA center to identify network gear upgrades and IAVA/PSIRTS
Configure and support security logging, monitoring, and analysis using SIEM platforms such as Microsoft Sentinel
Respond to cybersecurity incidents and coordinate remediation activities
Support Continuity of Operations (COOP) planning and implementation
Maintain and support System Security Plans (SSPs) and Authorization to Operate (ATO) documentation and related compliance activities
Manage security incidents, service requests, and change-management tickets
Collaborate with engineering teams, federal stakeholders, and project managers to maintain a secure, reliable network environment

Requirements

10+ years of professional experience in network engineering, network security, or cybersecurity infrastructure
Active Top Secret security clearance, or ability to obtain one
Strong hands-on experience administering and troubleshooting Check Point firewalls
Experience managing firewall policies, software upgrades, patch management, routing, and VPN connectivity
Solid understanding of enterprise networking technologies, including TCP/IP, VLANs, routing, switching, and network troubleshooting
Experience supporting enterprise network security operations and resolving complex technical issues
Ability to communicate effectively with federal customers, technical teams, and project leadership
Strong analytical, troubleshooting, and problem-solving skills
Demonstrated ability to collaborate, mentor junior engineers, and work effectively in a team environment

Technologies

Check Point firewalls
High-availability (HA) configurations
Check Point Harmony
Check Point Intrusion Prevention and Intrusion Detection (IPS/IDS)
Cisco Catalyst
IEEE 802.1X
Cisco Identity Services Engine (ISE)
Cisco DNA center
IAVA/PSIRTS
Microsoft Sentinel
SIEM platforms
System Security Plans (SSPs)
Authorization to Operate (ATO)
COOP planning

Preferred Qualifications

Industry certifications such as Check Point CCSA/CCSE, Cisco CCSP/CCIE, or equivalent certifications
Experience with Cisco ISE and 802.1X
Experience with Microsoft Sentinel or other SIEM platforms
Experience with SolarWinds and Cisco Catalyst Center
Familiarity with federal cybersecurity requirements, SSPs, ATO processes, and COOP planning
Previous experience supporting federal government customers

Work Schedule

Job Type: Full-Time
Schedule: Monday–Friday

Location

Washington, DC: Hybrid (Washington, DC 20266)

Benefits

Highly competitive compensation with overtime opportunities
Three weeks of Paid Time Off (PTO)
10 paid federal holidays
401(k) retirement plan with company matching
Comprehensive medical, dental, and vision insurance
PPO, HMO, and Health Savings Account (HSA) plan options
Flexible Spending Account (FSA)
Short-term and long-term disability insurance
Life insurance and Accidental Death & Dismemberment (AD&D) coverage
Annual tuition reimbursement
Professional development and certification support
100% employer-paid parking
Supportive team environment with emphasis on work-life balance
Dental insurance
Health insurance
Life insurance
Paid time off
Professional development assistance
Referral program
Retirement plan
Tuition reimbursement
Vision insurance

Application Questions

Do you have hands on experience with Checkpoint Firewalls?
Do you have hands on experience with Cisco ISE and 802.1x?
Do you hold an active Secret or Top-Secret clearance?

Experience (Additional)

Configuring network equipment: 10 years (Preferred)

Licenses / Certifications (Additional)

Do you have hold any Checkpoint /Cisco/Palo Alto Cert? (Preferred)

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