Top 441 Senior security engineer Jobs in Washington Dc

Senior Cyber Security Fusion Analyst
Leidos —Odenton, MD
- $131,300 - $237,350 a year
- Full-time
- 11+ years
- Bachelor's degree
- Fair chance
Cyber Reverse Engineer, Senior
CACI —Sterling, VA
- $113,200 - $237,800 a year
- Full-time
- Computer science
- 7 years
- Computer Science
- Health insurance
Senior Reverse Engineer / Vulnerability Researcher
Johns Hopkins Applied Physics Laboratory (APL) —Laurel, MD
- $105,000 - $290,000 a year
- Full-time
- Computer Science
- 5 years
- Master's degree
- Disability insurance
- Health insurance
Senior Hardware Reverse Engineer
Johns Hopkins Applied Physics Laboratory (APL) —Laurel, MD
- $100,000 - $245,000 a year
- Full-time
- Computer Science
- 5 years
- Analysis skills
- Disability insurance
- Health insurance
Senior Wireless Reverse Engineer
Johns Hopkins Applied Physics Laboratory (APL) —Laurel, MD
- $105,000 - $290,000 a year
- Full-time
- Computer Science
- Master's degree
- Analysis skills
- Disability insurance
- Health insurance
1d
Senior Systems Engineer
Gridiron IT Solutions LLC —Arlington, VA
- $100,000 - $150,000 a year
- Full-time
- Hybrid work
- Research
- Office
- Bachelor's degree
- Health savings account
- AD&D insurance
Quick Apply
Senior Security Engineer
Chickasaw Nation Industries —Reston, VA
- Full-time
- Schematics
- Ability to walk for extended periods
- Office
- AD&D insurance
- Disability insurance
8d
Cyber Palo Alto Networks Security Engineer/ Senior Consultant, Strategy, Growth, and Transformation
Deloitte —McLean, VA
- $105,400 - $207,800 a year
- Full-time
- Computer science
- Computer Science
- Up to 50% travel
12d
Cloud Security Engineering - Senior
Freddie Mac —McLean, VA
- $126,000 - $190,000 a year
- Full-time
- Azure
- 5 years
- Bachelor's degree
1d
Senior Cyber Network Operations Analyst
CACI —Chantilly, VA
- $131,800 - $290,000 a year
- Full-time
- Computer Science
- Writing skills
- 11+ years
- Health insurance
14d
Senior Security Analyst
Motion Recruitment —Herndon, VA
- Contract
- Windows
- Java
- Senior level
8d
Senior Cybersecurity Incident Response & Threat Analyst
Confidential —Rockville, MD
- $140,000 - $170,000 a year
- Full-time
- Computer Science
- 8 years
- Analysis skills
- Health savings account
- Health insurance
Quick Apply
13h
Sr Principal Cyber Systems Engineer (S)
Northrop Grumman —Jessup, MD
- $156,400 - $234,600 a year
- Overtime
- Computer science
- Computer Science
- Bachelor's degree
- Paid holidays
- Disability insurance
2d
Sr Principal Cyber Systems Engineer (S)
Northrop Grumman —Jessup, MD
- $156,400 - $234,600 a year
- Overtime
- Computer science
- Computer Science
- Bachelor's degree
- Paid holidays
- Disability insurance
2d
Sr Principal Cyber Systems Engineer (S)
Northrop Grumman —Jessup, MD
- $156,400 - $234,600 a year
- Overtime
- Computer science
- Computer Science
- Bachelor's degree
- Paid holidays
- Disability insurance
2d
Sr Principal Cyber Systems Engineer (S)
Northrop Grumman —Jessup, MD
- $156,400 - $234,600 a year
- Overtime
- Computer science
- Computer Science
- Bachelor's degree
- Paid holidays
- Disability insurance
2d
IAM - Identity and Access Management Sr Engineer - Active Top Secret required
General Dynamics Information Technology —Washington, DC
- $164,382 - $172,500 a year
- Azure
- Computer Science
- AWS
- Paid time off
- 401(k) matching
Senior ServiceNow Software Development Engineer (Risk & Security)
CACI —Chantilly, VA
- $103,800 - $218,100 a year
- Full-time
- 5 years
- Windows
- Analysis skills
- Health insurance
Senior ServiceNow Software Development Engineer (Risk & Security)
CACI —Chantilly, VA
- $103,800 - $218,100 a year
- Full-time
- 5 years
- Windows
- Analysis skills
- Health insurance
Senior Cybersecurity Engineer
CACI —Springfield, VA
- $113,200 - $237,800 a year
- Full-time
- 6 years
- Computer Science
- Writing skills
- Health insurance

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Senior Cyber Security Fusion Analyst

Leidos -
Odenton, MD

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Job Details

Full-time
$131,300 - $237,350 a year

Qualifications

Log analysis tools
Vulnerability management
Threat intelligence

Full 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 only and 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.

Securing Your Data

Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at [email protected].

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.

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.

Apply Now

Refine Your Search

senior security engineer jobs in washington dc

Senior Cyber Security Fusion Analyst

Cyber Reverse Engineer, Senior

Senior Reverse Engineer / Vulnerability Researcher

Senior Hardware Reverse Engineer

Senior Wireless Reverse Engineer

Senior Systems Engineer

Senior Security Engineer

Cyber Palo Alto Networks Security Engineer/ Senior Consultant, Strategy, Growth, and Transformation

Cloud Security Engineering - Senior

Senior Cyber Network Operations Analyst

Senior Security Analyst

Senior Cybersecurity Incident Response & Threat Analyst

Sr Principal Cyber Systems Engineer (S)

Sr Principal Cyber Systems Engineer (S)

Sr Principal Cyber Systems Engineer (S)

Sr Principal Cyber Systems Engineer (S)

IAM - Identity and Access Management Sr Engineer - Active Top Secret required

Senior ServiceNow Software Development Engineer (Risk & Security)

Senior ServiceNow Software Development Engineer (Risk & Security)

Senior Cybersecurity Engineer

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