Incident Responder (2nd Shift)

Leidos Inc; Suitland (MD); On-site; USD 108,000 - 195,000; Full time

Benefits offered by this job

Health and Wellness programs

Income protection

Paid leave and retirement

Job summary

Leidos is seeking an Incident Responder (2nd Shift) to defend Navy maritime networks. You will handle incident detection, analysis, containment, eradication, and recovery, coordinating with IC partners to protect TS/SCI environments from cyber threats. The role requires 2nd shift hours (1530–2330) in Suitland, MD.

Responsibilities include handling escalations, ESF submissions, and DLP monitoring, with heavy emphasis on timely, accurate incident documentation and cross-team collaboration.

Qualifications

• Bachelor's degree in Cybersecurity or related field with 8+ years of experience.
• Active TS/SCI clearance.
• Extensive experience in the Computer Network Defense (CND) discipline.
• Experience with SIEM systems such as Splunk and Elastic.
• Experience with NIDPS and host-based tools.
• Knowledge of scripting languages (Python, PowerShell, etc.).
• Knowledge of penetration testing tools and red team tactics.
• Knowledge of ticketing and incident documentation.

Responsibilities

• Perform all phases of the incident response lifecycle.
• Coordinate with internal and external stakeholders including SSOs, JAG and ONI ISSM.
• Respond to incident notifications via telephone and email.
• Prepare and submit ESAFs to NNWC Electronic Spillage Center.
• Monitor DLP outputs for classified indicators.
• Maintain detailed incident timelines and documentation.
• Participate in incident response meetings and after-action reviews.
• Support annual security exercises.

Skills

Incident response

Threat hunting

Communication

Documentation

Teamwork

Education

Bachelor's degree in Cybersecurity or related field

Tools

Splunk

Elastic

Cisco FirePower

Palo Alto NGFW

Trellix ePO

Microsoft Defender

Tanium

Python/PowerShell

Kali/Nessus/Burp Suite

Nmap

Job description

Description

Incident Responder (2nd Shift)

Location: Suitland, MD
Clearance: Active TS/SCI

2nd Shift Work Hours: 1530 - 2330

Leidos is seeking an Incident Responder (2nd Shift) to join a mission focused cybersecurity team supporting the Office of Naval Intelligence (ONI) at the Hopper Global Communications Center (HGCC) in Suitland, MD.

In this role, you will serve as a digital first responder, helping defend the Navy's critical maritime intelligence networks against cyber threats. You will respond to and investigate cybersecurity incidents, contain affected systems, limit operational impact, and collect and analyze digital artifacts to support effective response and recovery. Working across the incident response lifecycle, you will collaborate with cybersecurity, intelligence, and investigative partners to help protect highly sensitive TS/SCI environments.

Work Location Hours: This is a 2nd shift position with regular work hours of 1530 - 2330. Occasional floater shifts or coverage outside of these hours may be required based on program and staffing needs.

Primary Responsibilities

• Perform all phases of the incident response lifecycle, including detection, analysis, containment, eradication, and recovery.
• Receive and act on escalations from Tier 1 analysts, conduct spillage response and cleanup activities, and support incident response for TS/SCI networks, including JWICS, ATLAS, and other networks for which HGCC is responsible.
• Receive and respond to incident notifications from customers via telephone and email.
• Prepare and submit Electronic Spillage Assessment Forms (ESAFs) to the NNWC Electronic Spillage Center.
• Monitor Data Loss Prevention (DLP) outputs for classified code words and potential spillage indicators.
• Coordinate and communicate with internal and external stakeholders, including Special Security Officers (SSOs), Judge Advocate General (JAG), ONI ISSM, Hopper ISSM, CNI, NAVNETWARCOM, IC SCC, NCDOC, NCIS, and other IC and DoD SOC/DCO teams.
• Maintain detailed and accurate incident documentation and timelines throughout the response process.
• Participate in incident response meetings, briefings, and after action reviews.
• Support the execution and evaluation of annual security exercises.

Required Qualifications

• Bachelor's degree in Cybersecurity, Information Technology, Information Assurance, or a related area of study desired with 8+ years of experience or Master's degree with 6+ years of experience. Additional experience may be considered in lieu of a degree.
• Active TS/SCI security clearance.
• Extensive experience in the Computer Network Defense (CND) discipline.
• Significant professional experience monitoring, analyzing, and investigating alerts generated by 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.

Required Certifications

• Must possess one of the following certifications or obtain one within 30 days of accepting an offer: Certified Ethical Hacker (CEH), CyberSec First Responder (CFR), CompTIA Cybersecurity Analyst (CySA+), GIAC Certified Forensic Analyst (GCFA), GIAC Certified Incident Handler (GCIH), EC Council Certified Incident Handler (ECIH), or Cisco Cybersecurity Specialist (SCYBER).

Original Posting:September 15, 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 $107,900.00 - $195,050.00

Pay and Benefits

Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement.

• competitive compensation
• Health and Wellness programs
• Income Protection
• Paid Leave and Retirement

More details are available at www.leidos.com/careers/pay-benefits.

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.

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.