Incident Response Analyst

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Arlington, VA
In-Office
105K-189K Annually
Information Technology • Software
The Role

Department of Homeland Security (DHS), Security Operations Center (SOC) Support Services is a US Government program responsible to monitor, detect, analyze, mitigate, and respond to cyber threats and adversarial activity on the DHS Enterprise.  The DHS SOC has primary responsibility for monitoring and responding to security events and incidents detected at the Trusted Internet Connection (TIC) and Policy Enforcement Point (PEP) and is responsible for directing and coordinating detection and response activities performed by each Component SOC. Direction and coordination are achieved through a new shared DHS incident tracking system and other means of coordination and communication. Leidos is seeking a Senior Incident Response Analyst to join our team on this highly visible DHS CISA SOC Program.

The Incident Responder will perform the following:

• Coordinate investigation and response efforts throughout the Incident Response lifecycle

• Correlate and and analyze events and data to determine scope of Cyber Incidents

• Acquire and analyze endpoint and network artifacts, volatile memory, malicious files/binaries and scripts

• Recognize attacker tactics, techniques, and procedures as potential indicators of compromise (IOCs) that can be used to improve monitoring, analysis and Incident Response.

• Develop, document, and maintain Incident Response process, procedures, workflows, and playbooks

• Tune and maintain security tools (EDR, IDS, SIEM, etc) to reduce false positives and improve SOC detection capabilities

• Document Investigation and Incident Response actions taken in Case Management Systems and prepare formal Incident Reports

• Create metrics and determine Key Performance Indicators to drive maturity of SOC operations

• Develop security content such as scripts, signatures, and alerts

The ideal candidate will possess:

• In-depth knowledge of each phase of the Incident Response life cycle

• Expertise of Operating Systems (Windows/Linux) operations and artifacts

• Understanding of Enterprise Network Architectures to include routing/switching, common protocols (DHCP, DNS, HTTP, etc), and devices (Firewalls, Proxies, Load Balancers, VPN, etc)

• Ability to recognize suspicious activity/events, common attacker TTPs, and perform logical analysis and research to determine root cause and scope of Incidents

• Be familiar with Cyber Kill Chain and have utilized the ATT&CK Framework

• Have scripting experience with Python, PowerShell, and/or Bash

• Ability to independently prioritize and complete multiple tasks with little to no supervision

• Flexible and adaptable self-starter with strong relationship-building skills

• Strong problem-solving abilities with an analytic and qualitative eye for reasoning

• Strong verbal and written communication skills

•Ability to communicate with all levels of audiences (subordinates, peers & leadership)

Basic Qualifications

All Department of Homeland Security SOC employees are required to favorably pass a 5-year (BI) Background Investigation. Experience in the areas of incident detection and response, malware analysis, or computer forensics.

Bachelors’ degree in Computer Science, Engineering, Information Technology, Cyber Security, or related field and 8-12 years of related experience.  Additional years of experience and cyber certifications may be considered in lieu of degree.

Should have at least one of the following certifications:

SANS GIAC: GCIH, GCIA, GCFA, GPEN GCFE, GREM

CISSP OSCP, OSCE, OSWP

Preferred Qualifications

Experience in cyber government, and/or federal law enforcement FISMA systems.

Original Posting:July 2, 2025

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 $104,650.00 - $189,175.00

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.

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The Company
Alexandria, VA
27,104 Employees

What We Do

We Are Leidos

For 50 years we have been tackling some of the biggest problems that face our nation and our world.

OUR MISSION
Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020.

Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®.

Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos.

Your most important work is ahead.

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