Incident Responder – Weekday 2nd and 3rd Shifts

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

Job summary

Leidos is seeking two Incident Responders to join a mission-focused team supporting the Navy's cybersecurity environment at ONI Hopper Global Communications Center in Suitland, MD. The role runs 2nd or 3rd shifts, with training on day shift initially.

You will investigate, contain, and recover from cyber incidents across TS/SCI networks in a 24/7 operation. You will collaborate with cybersecurity, intelligence, and investigative partners and contribute to annual security exercises while

Qualifications

• Bachelor's or Master's with required years of experience per the ad.
• Active TS/SCI clearance and program access.
• Extensive experience in the Computer Network Defense (CND) discipline.
• Experience monitoring, analyzing, and investigating security alerts.
• Experience with SIEMs (Splunk, Elastic).
• Experience with NIDPS and host-based tools (Cisco FirePower, Palo Alto NGFW, Trellix ePO, Defender, Tanium).
• Knowledge of scripting/coding languages (Python, Perl, Ruby, JavaScript, PowerShell, C, C++, Java).
• Knowledge of penetration testing tools (Kali, SamuraiWTF, Nmap, Burp Suite, sqlmap, Metasploit).
• Knowledge of ticketing, reporting, and intelligence dissemination in cybersecurity.

Responsibilities

• Perform all phases of the incident response lifecycle: detection, analysis, containment, eradication, recovery.
• Respond to escalations from Tier 1 analysts and support TS/SCI networks (JWICS, ATLAS).
• Receive incident notifications via phone and email.
• Prepare ESAFs for the NNWC Electronic Spillage Center.
• Monitor DLP outputs for classified indicators and spillage signals.
• Coordinate with SSOs, JAG, ONI ISSM, Hopper ISSM, CNI, NAVNETWARCOM, IC SCC, NCDOC, NCIS, and other teams.
• Maintain detailed incident documentation and timelines.
• Participate in incident response meetings and annual security exercises.

Skills

Programming languages (Python, Perl,

Education

Bachelor's degree in Cybersecurity, Information Technology, Information Assurance, or related field

Master's degree in a related field

Tools

Splunk

Elastic

Cisco FirePower

Palo Alto NGFW

Trellix ePO

Microsoft Defender

Tanium

Job description

Description

Leidos is hiring two Incident Responder to join a mission focused team supporting the Navy's cybersecurity environment at the Office of Naval Intelligence (ONI) Hopper Global Communications Center (HGCC) in Suitland, MD.

We have one opening for each of the following Monday through Friday shifts:

Weekdays 2nd Shift

Monday through Friday: 1530 to 2330

Weekdays 3rd Shift

Monday through Friday: 2330 to 0730

Work Location and Hours

These are full-time, onsite positions supporting a 24 hour cybersecurity operation.

Training Schedule

For up to the first two months of employment, all selected candidates will be required to complete training during the day shift, Monday through Friday. Candidates must be available to work the day shift throughout the initial training period, regardless of their regular shift schedule.

Regular Work Schedule

Upon completion of training, each Incident Responder will transition to the 2nd or 3rd shift schedule for which they were hired. Occasional additional or alternate shift coverage may be required to support team coverage, employee leave, or other program and staffing needs.

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 investigate and respond to 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.

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 clearance in DISS and required program access.
• 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 active certifications: CompTIA Security+, CompTIA CySA+, CompTIA PenTest+, CompTIA Cloud+, CEH, FITSP O, GIAC GMON, GIAC GRID, GIAC GCIA, GIAC GCIH, GIAC GICSP, GIAC GCED, GIAC GDSA, GIAC GSEC, CFR, or Cisco CyberOps.

Pay Range

Pay Range $107,900.00 - $195,050.00

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.