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From the employer's careers site First seen 29 Oct 2026

Cyber Defense Analyst

Leidos Suitland, MD On-site senior full-time

Salary

$87,100 - $157,450 per year

Apply on Leidos

Description

Leidos is seeking a Cyber Defense Analyst to join a mission-focused team supporting the Navy's cybersecurity environment in Suitland, MD.

In this role, you will serve on the front line of cyber defense, helping protect critical TS/SCI networks by monitoring and investigating cybersecurity alerts, identifying potential threats, and supporting proactive threat hunting activities.

Primary Responsibilities

  • Perform first-line monitoring of security tools and conduct initial analysis of alerts for TS/SCI networks, including JWICS, ATLAS, and other networks.
  • Monitor organisational cybersecurity tools for alerts, anomalies, and indicators of compromise.
  • Investigate and perform initial technical analysis of cybersecurity alerts and events, escalating potential incidents to Tier 2 as appropriate.
  • Create, update, and manage incident and event tickets within the approved ticketing system.
  • Conduct proactive threat hunting activities to identify potential malicious activity and emerging threats.
  • Perform wireless security scans of facilities and document and report findings.
  • Correlate alerts and security events across multiple platforms to identify patterns, trends, and potential threats.
  • Prepare and deliver operational and situational awareness briefings.
  • Support annual cyber defence exercises.

Required Qualifications

  • Bachelor's degree in Cybersecurity, Information Technology, Information Assurance, or a related area of study desired, with 4+ years of experience.
  • Active TS/SCI security clearance.
  • Concentrated experience in the CND discipline.
  • Professional experience monitoring and investigating alerts from cybersecurity tools.
  • Experience with Security Information and Event Management (SIEM) systems such as Splunk and Elastic.
  • Experience with Network Intrusion Detection/Prevention Systems (NIDPS), such as Cisco FirePower and Palo Alto NGFW, as well as host-based tools such as Trellix ePO, Microsoft Defender, and Tanium.
  • Knowledge of scripting and coding languages such as Python, Perl, Ruby, JavaScript, PowerShell, C, C++, and Java.
  • Knowledge of penetration testing and red team tactics, techniques, and procedures, as well as tools such as Kali, SamuraiWTF, Nmap, Burp Suite, sqlmap, and Metasploit.
  • Knowledge of ticketing systems, report writing, and intelligence gathering, analysis, and dissemination techniques specific to cybersecurity.
  • Strong analytical, conceptual, and problem-solving skills.

Required Certifications

  • Must possess one of the following active certifications: CompTIA Security+, CompTIA CySA+, CompTIA PenTest+, CompTIA Cloud+, CEH, FITSP-O, GIAC GMON, GIAC GRID, GIAC GCIA, GIAC GCIH, GIAC GICSP, GIAC GCED, GIAC GDSA, GIAC GSEC, CFR, or Cisco CyberOps.

Skills

Required

Ready to apply?

You apply with the employer directly. Their original posting is here: https://leidos.wd5.myworkdayjobs.com/en-US/External/job/Suitland-MD/Cyber-Defense-Analyst_R-00193622

Apply on Leidos