Senior Cyber Security Fusion Analyst

Leidos; Odenton (MD); On-site; USD 131,000 - 237,000; Full time

Job summary

Leidos is seeking a Cyber Security Fusion Analyst to support GSM-O II on the DISA GSM-O II program at Fort Meade. You will perform incident handling, threat detection, network analysis, and vulnerability management to protect critical DoD networks.

You will develop standard operating procedures and frameworks, analyze threat data from multiple sources, and provide written assessments and risk recommendations to improve the DODIN's security posture.

Qualifications

• Active DoD TS/SCI clearance and eligible for polygraph.
• Bachelor’s Degree in related discipline with 12+ years of related experience.
• Security+ or DoD 8570 Level II certification.
• Deep knowledge of network and application protocols, vulnerabilities, and threat methodologies.
• Experience with analysis datasets and tools (e.g., Wireshark, Splunk, Arcsight).
• Familiarity with vendor portals and open-source threat intel sources.
• Proficiency with netflow, PCAP, and custom logs for analysis.

Responsibilities

• Provide incident handling, event triage, and threat detection analysis.
• Develop Cyber Fusion SOPs and framework based on DoD guidance.
• Identify threats and propose mitigations to reduce attack surface.
• Analyze threat reports, OSINT, and vulnerability data for prioritized plans.
• Document adversary TTPs and align with enterprise vulnerabilities.
• Identify campaigns and anomalies in logs, SIEMs, and data sources.
• Produce risk assessments and recommendations for countermeasures.
• Collect metrics and provide situational awareness on trends.

Skills

Network protocols

Cyber threat analysis

Threat intelligence

OSINT

PCAP analysis

Wireshark

Splunk

Arcsight

Education

Bachelor's degree

Tools

Passive DNS

VirusTotal

Recorded Future

TCP/IP

OSI model

WHOIS

Job description

Description

The Leidos Defense Group has an opening for a Cyber Security Fusion Analyst on the DISA GSM-O II program supporting Joint Force Headquarters DODIN at Fort Meade.

Position Summary

GSM-O II provides network operations and cyber defense support to the Defense Information Systems Agency (DISA) in support of the DOD and COCOMs. In this role, you will provide support with incident handling, triage of events, network analysis, threat detection, trend analysis, metric development, and vulnerability information dissemination.

Primary Responsibilities

• Leverage an array of network monitoring and detection capabilities (including netflow, custom application protocol logging, signature-based IDS, and full packet capture (PCAP) data) to identify cyber adversary activity.
• Support the development of Cyber Fusion standard operating procedures (SOPs), and Cyber Fusion Framework and Methodology based on industry best practice and department of defense instruction, guidance, and policy.
• Identify threats to the enterprise and provide mitigation strategies to improve security, and reduce the attack surface.
• Perform analysis by leveraging serialized threat reporting, intelligence product sharing, OSINT, and open source vulnerability information to ensure prioritized plans are developed.
• Analyze and document malicious cyber actors TTPs, providing recommendations and alignment to vulnerabilities and applicability to the enterprise operational environment.
• Discover adversary campaigns, anomalies and inconsistencies in sensor and system logs, SIEMs, and other data.
• Identify, investigate and rule out system compromises, with the capacity to provide written analytic summaries and attack life cycle visualizations.
• Provide risk assessments and recommendations based on analysis of technologies, threats, intelligence, and vulnerabilities.
• Offer recommendations to adjust enterprise or tactical countermeasures to for threats impacting the DODIN.
• Collect analysis metrics and trending data, identify key trends, and provide situational awareness on these trends.

Required Qualifications

• Active DoD TS/SCI Clearance and eligible for polygraph
• Bachelor’s Degree in related discipline and 12 years of related experience. Additional experience may be accepted in lieu of degree
• Security+ Certification (or other equivalent DoD 8570 Level II certification)
• In-depth knowledge of network and application protocols, cyber vulnerabilities and exploitation techniques and cyber threat/adversary methodologies.
• Proficiency with datasets, tools and protocols that support analysis (e.g. passive DNS, Virus Total, Recorded Future, TCP/IP, OSI, WHOIS, enumeration, threat indicators, malware analysis results, Wireshark, Splunk, Arcsight etc.).
• Experience with various open-source and commercial vendor portals, services and platforms that provide insight into how to identify and/or combat threats or vulnerabilities to the enterprise.
• Proficiency working with various types of network data (e.g. netflow, PCAP, custom application logs)

Preferred Qualifications

• Experience with the DISN and other DOD Networks.
• Skilled in building extended cyber security analytics (Trends, Dashboards, etc.).
• Demonstrated experience briefing Senior Executive Service (SES) and General Officer/Flag Officer (GO/FO) leadership.
• Experience in intelligence driven defense and/or cyber Kill Chain methodology.
• IAT Level III and IAM Level II+III Certifications

GSMO

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

Original Posting

July 28, 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 $131,300.00 - $237,350.00

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.

About Leidos

Leidos 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 www.Leidos.com.

Pay And Benefits

Pay 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. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits.

Commitment to Non-Discrimination

All 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.