Cisco IronPort Email Security Administrator

CONCEPT SOLUTIONS LLC

8d•Onsite

About The Position

Concept Solutions is seeking a Cisco IronPort Email Security Administrator to support a large-scale FAA environment (~60,000 users). This role is responsible for administering and securing enterprise email gateway systems, with a focus on Cisco Email Security Appliance (ESA) and Microsoft 365 in a hybrid messaging environment.

Requirements

Bachelor’s degree in IT, Cybersecurity, or related field or equivalent experience
5+ years of progressive experience in system administration, email security, or network engineering
Hands-on experience with Cisco IronPort / Email Security Appliance (ESA)
Strong proficiency with AsyncOS
Knowledge of SMTP, MIME, and internet message formats
Experience with email security policies and threat protection
Familiarity with both CLI and web-based GUI administration
Working knowledge of Microsoft 365 and/or Google Workspace administration
Proficiency with Windows 11 / enterprise environments
Experience with ServiceNow or similar ticketing systems
Knowledge of backup solutions (e.g., Arcserve)
Understanding of network fundamentals and TCP/IP
Strong analytical and problem-solving skills
Experience with log analysis, monitoring tools, and performance tuning
Ability to troubleshoot hardware, software, and network issues

Nice To Haves

Cisco Certified Support Technician (CCST) – Cybersecurity or higher
Cisco Certified Network Associate (CCNA)
CompTIA Security+
Cisco Email Security Appliance Certification (or willingness to obtain)
Experience in federal environments (DOT, FAA, or similar)
Exposure to email platform migrations (e.g., on-premises to cloud)
Familiarity with hybrid or multi-platform messaging environments

Responsibilities

Administer and maintain Cisco IronPort Secure Email Gateway (SEG) appliances
Manage AsyncOS configurations, upgrades, and system performance
Implement and enforce email security policies (anti-spam, anti-malware, data loss prevention)
Monitor, analyze, and respond to email threats and incidents
Perform message tracking, reporting, and log analysis
Apply firmware updates, patches, and security enhancements
Support and administer Microsoft 365 (Exchange Online)
Assist in email platform integration, migration, or coexistence strategies
Collaborate with enterprise teams to ensure secure mail flow and policy alignment
Install and configure network hardware and supporting infrastructure
Utilize ServiceNow for incident, change, and request management
Diagnose and resolve email delivery, connectivity, and security issues
Conduct log analysis and root cause investigations
Monitor system health and respond to alerts and incidents
Partner with Cybersecurity teams on threat mitigation and response
Maintain accurate system documentation, configurations, and procedures
Collaborate with Cybersecurity, Network, and Enterprise Messaging teams
Support audits, compliance requirements, and continuous improvement efforts