What are the responsibilities and job description for the Senior Firewall Administrator (Hybrid) position at Agil3 Technology Solutions (A3T)?
Key Responsibilities
- Firewall Administration
- Configure, manage, and maintain enterprise-class firewalls (e.g., Cisco ASA/Firepower, Palo Alto, Fortinet) across data centers, headquarters, and regional offices.
- Manage firewall rules, NAT, VPN tunnels, and access control lists (ACLs) to ensure secure connectivity.
- Perform routine patching, firmware upgrades, and policy updates.
- Network Security Operations
- Monitor firewall logs, intrusion prevention/detection alerts, and traffic flows to identify and remediate threats.
- Ensure compliance with agency security baselines, federal directives (FISMA, NIST, OMB), and industry best practices.
- Implement and maintain segmentation, Zero Trust principles, and conditional access policies.
- Incident Response & Troubleshooting
- Provide Tier III support for escalated firewall and network security incidents.
- Collaborate with SOC, cybersecurity teams, and external vendors during incident investigations.
- Conduct forensic analysis and root-cause investigations when required.
- Documentation & Knowledge Management
- Maintain current firewall configurations, network security diagrams, and system baselines.
- Develop and update SOPs for firewall operations, change management, and incident handling.
- Mentor and provide guidance to junior administrators and Tier II staff.
- Strategic Input & Projects
- Support cloud security integration (Azure, M365, Intune, hybrid networking).
- Provide input into network and security architecture planning.
- Participate in disaster recovery exercises, failover testing, and compliance audits.
· Education: Bachelor’s degree in Computer Science, Information Systems, Cybersecurity, or related field.
· Experience: Minimum of 7–10 years of network and firewall administration experience, with 5 years in a senior or lead firewall/security role.
· Technical Expertise:
- Advanced knowledge of firewall platforms (Cisco ASA/Firepower, Palo Alto NGFW).
- Strong background in VPNs, IPS/IDS, remote access, and rule-base optimization.
- Familiarity with SIEM tools, packet capture/analysis, and network forensics.
- Palo Alto Networks Certified Network Security Engineer (PCNSE)
- Cisco CCNP Security (or CCIE Security)
- CompTIA Security , CySA , or CISSP
- Must pass background investigation.
- Must be a U.S. Citizen.
Agil3 Technology Solutions LLC ("A3T") is a Northern Virginia based, ISO 9001:2018, ISO 20000 & ISO 27001 Certified, 8a, Women-Owned (WOSB) and Service-disabled Veteran-Owned (SDVOSB) small business. A recent recipient of the prestigious Washington Technology TOP 50 (ranking #9, and on the list for last 4 years!), A3T is experiencing industry leading recognition and growth. In addition to the CEO’s recognition as an “All-Star Entrepreneur”, A3T is recognized by Inc Magazine as one of the fastest growing companies in the country, by Vet 50 as Fastest Growing Veteran-Owned Businesses, and is featured in CyberSecurity Ventures / Cybercrime Magazine! “As a go-to Women-Owned Cybersecurity company in US and internationally”. As part of our growth, we are looking for YOU to join our growing team.
A3T offers excellent benefits to enhance the work-life balance, including:
- Medical Insurance
- Dental Insurance
- Vision Insurance
- Life Insurance
- Short Term & Long-Term Disability
- 401k Retirement Savings Plan with Company Match
- Paid Holidays
- Paid Time Off (PTO)
- Tuition and Professional Development Assistance
- Parking/Travel Reimbursement (metropolitan areas)