Network Security Tools Engineer

Network Security Tools Engineer

Location: Suitland MD
Clearance Required: Active TS/SCI

Leidos is seeking an experienced Network Security Tools Engineer to join our cybersecurity team in Suitland MD . This position will support the security technologies and infrastructure that provide visibility monitoring detection and protection across a mission critical enterprise environment.

In this role you will be responsible for the administration engineering optimization integration and troubleshooting of enterprise network security tools and platforms. You will work closely with cybersecurity operations network engineering and other technical teams to ensure security tools remain available properly configured and capable of providing reliable data to support threat detection and incident response.

The ideal candidate will bring a strong combination of networking and cybersecurity experience along with hands on experience supporting enterprise security technologies such as SIEM IDS/IPS firewalls endpoint security packet capture and network visibility solutions.

Primary Responsibilities

• Deploy configure administer upgrade and maintain enterprise network security tools and platforms including SIEM firewalls proxy servers packet capture solutions IDS/IPS endpoint security and network visibility technologies.
• Monitor the health availability performance and data ingestion of cybersecurity tools to ensure continuous visibility across the enterprise environment.
• Troubleshoot and resolve security tool performance connectivity integration configuration and data collection issues.
• Support the integration of security technologies across enterprise networks systems and other cybersecurity platforms.
• Collaborate with Security Operations Center teams to optimize security tools tune detection capabilities reduce false positives and improve the quality of security alerts.
• Provide technical support during cybersecurity incidents and service outages including troubleshooting issues affecting security monitoring and data collection.
• Support the integration and automation of cybersecurity tools using scripting and orchestration technologies.
• Analyze network and security telemetry to identify gaps performance issues and opportunities to improve security visibility.
• Maintain accurate technical documentation including architecture diagrams system configurations runbooks standard operating procedures and asset inventories.
• Collaborate with cybersecurity network systems and engineering teams to support the continued operation and improvement of the enterprise security infrastructure.

Basic Qualifications

• Bachelors degree in Computer Science Cybersecurity Information Technology or a related technical discipline with 8 years of relevant professional experience or a Masters degree with 6 years of relevant professional experience. Equivalent practical experience may be considered in lieu of a degree as permitted by contract requirements.
• Active TS/SCI security clearance in DISS.
• Hands on experience supporting information security network administration cybersecurity engineering or enterprise security tools.
• Strong understanding of networking concepts and protocols including TCP/IP DNS DHCP routing and network security architecture .
• Experience administering or supporting enterprise cybersecurity technologies such as Splunk Microsoft Sentinel Elastic CrowdStrike Palo Alto Networks Wireshark SteelCloud or similar platforms.
• Experience working with network and enterprise operating systems including Linux and Windows .
• Experience troubleshooting complex network system or cybersecurity tool issues.
• Ability to work effectively with technical teams in a mission critical enterprise environment.

Required Certifications:

• Active DoD 8570 compliant industry certification listed under CSSP Infrastructure Support such as SecurityX CISSP CASP etc. or the ability to obtain the required certification within 30 days of hire.

Preferred Qualifications

• Vendor specific certifications from Cisco Palo Alto Networks Splunk or similar technology providers.
• Experience with IDS/IPS SIEM endpoint detection and response firewalls packet capture network visibility or security orchestration technologies.
• Experience with scripting or automation using Python PowerShell Bash or similar technologies.
• Familiarity with cloud networking and security controls within AWS Azure or Google Cloud Platform environments.
• Experience integrating cybersecurity tools with automation or Security Orchestration Automation and Response platforms.
• Experience supporting cybersecurity operations or Security Operations Center environments.

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If youre looking for comfort keep scrolling. At Leidos we outthink outbuild and outpace the status quo because the mission demands it. Were not hiring followers. Were recruiting the ones who disrupt provoke and refuse to fail. Step 10 is ancient history. Were already at step 30 and moving faster than anyone else dares.

Original Posting:

October 2 2026

For U.S. Positions: While subject to change based on business needs Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $107900.00 - $195050.00

The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job education experience knowledge skills and abilities as well as internal equity alignment with market data applicable bargaining agreement (if any) or other law.

Required Experience:

IC