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Description

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.

Requirements • Candidate must hold a minimum of 5 years' experience in the role of a Systems Administrator.

• Proficiency in Citrix Technologies is a necessary skill for this position.

• The applicant should have hands-on experience with Dell Technologies.

• A strong understanding of AB Testing is required for this role.

• Experience in Cluster Analysis is a significant asset for this position.

• Knowledge of Computer Hardware is essential for the candidate. Technology Doesn't Change the World, People Do.®

Robert Half is the world’s first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles.

Robert Half works to put you in the best position to succeed. We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity - whenever you choose - even on the go. Download the Robert Half app (https://www.roberthalf.com/us/en/mobile-app) and get 1-tap apply, notifications of AI-matched jobs, and much more.

All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information.

• 2025 Robert Half. An Equal Opportunity Employer. M/F/Disability/Veterans. By clicking “Apply Now,” you’re agreeing to Robert Half’s Terms of Use (https://www.roberthalf.com/us/en/terms) .