Cyber Defense Analyst
Listed on 2026-08-26
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IT/Tech
Cybersecurity
Description Cyber Defense Analyst
Location: Suitland, MD
Clearance: Active TS/SCI
Leidos is seeking a Cyber Defense Analyst to join a mission focused team supporting the Navy's cybersecurity environment at the Office of Naval Intelligence (ONI) Hopper Global Communications Center (HGCC) 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. You will apply your experience in the Certified Network Defender (CND) discipline and knowledge of IT systems and networks to analyze security events, manage incident tickets, support intelligence gathering and analysis, and communicate findings to key stakeholders.
PrimaryResponsibilities
- Perform first line monitoring of security tools and conduct initial analysis of alerts for TS/SCI networks, including JWICS, ATLAS, and other networks for which HGCC is responsible.
- Monitor organizational 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 defense exercises.
- Bachelor's degree in Cybersecurity, Information Technology, Information Assurance, or a related area of study desired, with 5+ years of experience.
- 8+ years of relevant professional experience in lieu of a degree.
- Active TS/SCI security clearance.
- 5+ years of concentrated experience in the CND discipline, regardless of degree.
- 3+ years of 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 Fire Power 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, Power Shell, 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.
- Must possess one of the following certifications:
CompTIA CySA+, CompTIA Pen Test+, CompTIA Cloud+, EC Council CEH, GIAC GCIA, GIAC GCIH, GICSP, or Cisco Cyber Ops.
Pay Range $87,100.00 - $
Pay and BenefitsPay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers.
- competitive compensation
- Health and Wellness programs
- Income Protection
- Paid Leave
- Retirement
More details are available at .
About LeidosLeidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit .
Commitment to Non-DiscriminationAll qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.
All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. Leidos will consider qualified applicants with criminal histories for employment in accordance with relevant Laws. Leidos is an equal opportunity employer/disability/vet.
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