Senior Cybersecurity Engineer

Arlington County

Location: Arlington, Virginia, United States
Job type: Full-time

Required skills

penetration testing
SIEM
AWS
Azure
GCP
information security
network security
technical support

About the role

Arlington County requires all applicants to thoroughly complete each section of the application, including prior job responsibilities, duties, and supplemental questions. While you may attach a resume, it will not replace a completed application. Incomplete applications will not be considered.

Arlington County's Department of Technology Services is hiring a Senior Cybersecurity Engineer to join the Information Security Team of the Security, Privacy and Records Division. This position is responsible for providing advanced technical support to network operations, implementing IT security updates, and contributing to security policy recommendations.

Responsibilities

Specific duties include:

Serving as subject matter expert and team lead for architecting and operating network firewalls, network access control (NAC) systems, and load balancers;
Designing, configuring, and operating the security components of additional network and security devices including: virtual private network (VPN) appliances, security and event (SIEM) systems, cloud security applications, and intrusion detection and prevention systems (IDS/IPS);
Responding to network security alerts and coordinating responses to incidents;
Providing tier 3/tier 4 technical support to resolve escalated cybersecurity issues;
Conducting network forensics, investigating intrusions, and leading recovery activities; and
Leading the development and implementation of necessary controls and procedures to protect information and technology assets, as well as developing and updating technical documentation, including network diagrams and security assessments.

Qualifications

Minimum:

Bachelor's degree in Computer Science, Information Systems Management, Mathematics, or a related field; and
Significant progressively responsible experience managing firewalls, load balancers, and cybersecurity programs and systems, that includes experience coordinating the work of others. This experience must include hands-on real-world experience managing large scale secure networks.

Substitution: Additional qualifying experience may substitute for the education on a year-for-year basis.

Desirables: Preference may be given to those with experience and/or knowledge in one or more of the following:

Firewalls- Advanced level
Network and Application Load Balancers- Advanced level
Cloud Security (AWS/Azure/GCP)- Advanced level
Routing & Switching- Intermediate level
Wired and Wireless NAC-Intermediate level
Understanding of network traffic analysis, remote access methods and systems, encryption, Advanced level; and/or
Vulnerability Scanning and Penetration Testing - Intermediate level

Special Requirements
Please note: A complete application will include an attached resume describing how your education, work experience, and training meets the requirements under selection criteria and highlighting your accomplishments in these areas and the desirables.
A pre-employment criminal records background check will be conducted. It may include checks of the following: criminal record, driving record, education, professional licensure, and credit history. You may be required to sign a release authorizing the County to obtain your background information.

A complete application with work history responsibilities is required to be considered for this position. Your responses to the supplemental questionnaire are considered part of the selection process and are required for this position. Please do not give "see resume" as a response to the questions. Incomplete applications will not be considered.
Additional Information
Work hours: This is a 40-hour per week position, Monday-Friday 8:00 a.m. - 5:00 p.m. with some flexibility.

This is a hybrid position with some remote work (telework) available for this position with prior supervisor approval.

The selection process may include both virtual and in-person interviews.

Location: 2100 Clarendon Blvd, Suite 702, Arlington, VA 22201.
The official title for this position is Senior Cybersecurity Engineer.

This is an overstrength position through the end of FY2026.

#LI-Hybrid

About Arlington County

Provides essential public services and infrastructure to Arlington residents.

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