We are offering an exciting opportunity for a largely Remote Systems Administrator in Washington, District of Columbia. You will be working in a fast-paced environment, managing network infrastructure, administering security measures, and handling system monitoring.
Responsibilities:
• Oversee the management of network infrastructure using diverse technologies.
• Administer security measures including Cisco Firepower Management Console, static NAT, routing rules, and firewall Access Control Lists.
• Handle VLAN management and Ubiquiti UniFi Controller operations.
• Install and manage wireless access points, ensuring secure authentication.
• Oversee Active Directory, DNS management, and DHCP management.
• Handle email authentication processes including DMARC, DKIM, SPF, and SPF flattening.
• Manage internal Public Key Infrastructure and handle web domain and IP management.
• Oversee TLS certificate management and maintain Level Blue SIEM.
• Respond to and mitigate security and system events, including off-hours.
• Deploy and monitor endpoint threat defense, IDS/IPS, and malware protection systems.
• Collaborate with external vendors to conduct penetration tests and implement necessary mitigation strategies.
• Manage system backup solutions using various platforms.
• Provide Level 3 support for VoIP phones, A/V systems/services, and end-user desktop systems and software.
• Manage patching and updates for PC and Mac desktop hardware, OS, and software applications.
• Manage Apple Business Manager automatic enrollments into Microsoft Intune’s MDM.
• Manage Linux server operating systems, including sub-features such as Apache, SSH, and MySQL/MariaDB.
• Develop, maintain, and deploy desktop images for both PC and Mac desktop hardware.
• Manage vendor relationships effectively.