Senior Network Security Engineer

Ampcus Inc.•Mechanicsville, VA

1d•Onsite

About The Position

We are seeking an experienced Sr. Network Security Engineer (Sr. NSE) to implement and support the organization's IT network, cloud, and computing infrastructure. The Sr. NSE performs day-to-day activities related to securing the organization's infrastructure, including documentation, research, analysis, design, and implementation of network and computing infrastructure. The Sr. NSE will support a hybrid enterprise environment consisting of approximately 300 statewide locations, Palo Alto firewalls, Azure networking, ExpressRoute connectivity, WAF technologies, Splunk SIEM, SD-WAN, and mission-critical public-facing applications. The role partners closely with Infrastructure, Cloud Engineering, and the Information Security Office to maintain the confidentiality, integrity, and availability of the organization's network infrastructure.

Requirements

Experience in Enterprise Networking: 8 Years
Experience in Enterprise Security: 5 Years
Experience in Azure Networking: 3 Years
Experience with WAF/NGFW: 3 Years
Experience supporting environments with 300+ Network Devices
Experience in Incident response
Experience in Security investigations
Experience in Log analysis
Experience in Threat intelligence
Experience in Security monitoring
Experience with SIEM products (e.g. Splunk, Microsoft Sentinel)
Experience in vulnerability management and remediation tracking
Experience with vulnerability scanning tools (e.g. Nessus, Tenable, Def)
Experience with Active Directory
Experience with MFA
Experience with Conditional Access
Experience with Certificates
Experience with SEC530
Experience with CIS Benchmarks
Experience with NIST CSF
Experience with NIST 800-53
Experience with Zero Trust principles
Experience with Cisco Client
Experience with NAC
Experience with 802.1X
Experience with RADIUS
Experience with TACACS
Experience with Palo Alto products
Experience with F5 Distributed Cloud products
Experience with Azure WAF products
Experience with Cisco VPN products
Experience with Global Protect products
Experience with F5 BIG-IP products
Experience working in highly regulated environments
Experience leading technical troubleshooting during outages
Ability to communicate technical issues to technical and executive audiences
Ability to mentor junior engineers

Nice To Haves

Ability to achieve Azure Security Engineer (AZ-500) certification
Ability to achieve Azure Network Engineer (AZ-700) certification

Responsibilities

Ensure network security architecture aligns with operational security standards before and after deployment.
Lead investigation and containment of network security incidents.
Review firewall rule requests and ensure compliance with security standards.
Design and maintain secure hybrid network architecture across on-premises and Azure environments.
Monitor security events using SIEM technologies and coordinate incident response activities.
Perform network security assessments and recommend remediation strategies.
Develop and maintain network security standards, diagrams, and operational documentation.
Support penetration testing and remediation efforts.
Participate in on-call support during critical security incidents.
Conduct proactive threat hunting and anomaly detection.
Validate WAF and firewall placement, integration, exposure, and connectivity.
Lead the implementation, review, and management of enterprise WAF solutions.
Identify and diagnose system problems and security threats using system logs, line monitors, SIEM platforms, diagnostic software, and test equipment.
Identify, prioritize, and remediate network security vulnerabilities.
Provide documentation, network architecture topology diagrams, IP addressing schemes, firewall rules, and access control documentation as required.
Work independently on assigned projects.