IT Sr. Security Systems Administrator Full Time

Miami-Dade County is seeking an IT Sr. Security Systems Administrator to join our Operational Security Team. This role offers the opportunity to work in a dynamic, agile environment with continuous learning and professional development. Our team is committed to supporting and developing our employees to perform at their highest potential.

This is an exciting opportunity to support critical public safety operations by leveraging your networking and cybersecurity expertise in the design, implementation, and support of the County s Fire Computer-Aided Dispatch (CAD) system.

The primary objective of this role is to secure County infrastructure and applications by installing, maintaining, and supporting network and security systems, while proactively strengthening Miami-Dade County s cybersecurity posture.

Job Responsibilities include:

• Installing, managing, and maintaining a wide range of security and network infrastructure, including Fortinet firewalls, Citrix ADC or Kemp load balancers, VPN tunnels, SD-WAN, Endpoint XDR systems, SASE solutions, and Zero Trust environments.
• Developing and maintaining standard operating procedures (SOPs) and assisting in the creation of policies aligned with security frameworks such as NIST 800-53, HIPAA, and CJIS.
• Writing and updating technical documentation to support system maintenance and adherence to security best practices.
• Serving as a subject matter expert for the Fire CAD system, including supporting municipalities, troubleshooting connectivity issues, and assisting product specialists with technical concerns.
• Monitoring security logs and reports, notifying the Compliance team of potential risks, and initiating system lockdowns when necessary.
• Collaborating with Security Engineers and cross-functional teams to investigate and respond to security incidents.
• Coordinating with vendors to open support tickets, implement solutions, and resolve system issues.
• Leading or participating in process improvement initiatives and tabletop exercises to enhance security posture and operational efficiency.

l.Benefits

Miami-Dade County offers great benefits including full medical, dental, and vision insurance; life and disability insurance; 457 pretax savings plan; flexible spending accounts; paid holidays, vacation and sick time; membership in the Florida Retirement System; professional development; and a tuition reimbursement program.

Apply by 04/26/2026.