Incident Responder (2nd Shift)

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

Job summary

Leidos is seeking an Incident Responder (2nd Shift) to join a mission-focused cybersecurity team supporting ONI at the Hopper Global Communications Center in Suitland, MD. You will defend Navy networks, respond to incidents, contain effects, and analyze artifacts across the response lifecycle.

The role requires TS/SCI clearance and hands-on experience with CND, SIEMs, NIDPS, and scripting. Work hours are 1530–2330 with occasional floater shifts.

Qualifications

• Bachelor's degree in Cybersecurity, Information Technology, Information Assurance, or a related area with 8+ years of experience or Master’s with 6+ years of experience.
• 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 SIEM systems such as Splunk and Elastic.
• Knowledge of NIDPS and host-based tools (Cisco FirePower, Palo Alto NGFW, Trellix ePO, Defender, Tanium).
• Knowledge of scripting and coding languages (Python, Perl, Ruby, JavaScript, PowerShell, C, C++, Java).
• Knowledge of penetration testing/tools (Kali, Burp Suite, Metasploit) and ticketing/reporting.

Responsibilities

• Perform all phases of the incident response lifecycle (detection, analysis, containment, eradication, recovery).
• Receive and act on escalations from Tier 1 analysts and support TS/SCI networks (JWICS, ATLAS).
• Respond to incident notifications via phone and email and document timelines.
• Submit ESAFs to NNWC Electronic Spillage Center.
• Monitor DLP outputs for classified indicators of spillages.
• Coordinate with SSOs, JAG, ONI ISSM, and other DoD/IC teams.
• Participate in incident response meetings and after-action reviews.
• Support annual security exercises.

Skills

CND experience

Incident response

Threat analysis

Python scripting

PowerShell

Java/C++

Education

Bachelor's degree

Master's degree

Tools

Splunk

Elastic

Cisco FirePower

Palo Alto NGFW

Trellix ePO

Microsoft Defender

Tanium

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).

Pay Range $107,900.00 - $195,050.00

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.

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 [e-mail].

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.