Tier 3 Cyber Threat Intelligence Analyst

Leidos; Chandler (AZ); On-site; USD 120,000 - 170,000; Full time

Job summary

Leidos is seeking a Tier 3 Cyber Threat Intelligence Analyst to join our NOSC-focused operations, delivering cyber threat intelligence, incident response support, and threat hunting across DHS NOSC mission areas. The role requires deep analysis of threat campaigns, actors, and TTPs to bolster the organization’s cyber posture.

The ideal candidate will have a Top Secret/SCI clearance, a strong IT background with 8+ years of experience at Tier III level, and hands-on expertise with host/network

Qualifications

• Top Secret/SCI clearance required.
• BS in IT or related field with 8–12 years in IT, or MS with 8+ years.
• Experience with host-based and network-based security monitoring and development of security content.
• Experience with Splunk and Analyst1 for threat hunting.
• Strong written and oral communication.

Responsibilities

• Identify and investigate high priority threat campaigns and threat actors.
• Analyze and track cyber threat landscape, including APT TTPs.
• Develop and deliver cyber threat intelligence reports for situational awareness.
• Support NOSC during incident response and threat hunting.
• Correlate data from intelligence sources with internal logs to drive detection.
• Perform host-based and network-based forensics and malware analysis.

Skills

Threat intelligence

Incident response

Splunk analysis

Communication skills

Education

Bachelor's degree in IT

Master's degree in IT

Tools

CrowdStrike Falcon

Tanium

Proofpoint TAP

Zscaler

Analyst1

Python

PowerShell

Job description

Description

Leidos is seeking a Tier 3 Cyber Threat Intelligence Analyst to join our team on a highly visible cyber security single-award IDIQ vehicle that provides Network Operations Security Operations (NOSC) support, cyber analysis, and application development.

Department of Homeland Security (DHS), NOSC 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. DHS NOSC 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 shared DHS incident tracking system and other means of coordination and communication.

The Cyber Threat Intel Analyst will need a strong cyber security background with experience with the following: Identify, track and investigate high priority threat campaigns, malicious actors with the interest, capability and TTPs (Techniques, Tactics and Procedures).

Bring a comprehensive understanding, analyzing and tracking the cyber threat landscape, including identifying and analyzing cyber threats actors, APT TTPs and/or activities to enhance cybersecurity posture of the organization’s IT operating environment.

Basic Qualifications

• The candidate must currently possess a Top Secret/SCI Clearance.
• BS in IT related field and 8-12 years’ experience in an IT field, or MS in IT related field and 8+ years’ experience in an IT Field, with a minimum of 7 years of experience as a Tier III senior cyber security analyst performing intelligence analysis, collection management, and technical analysis.
• Two years of recent experience with host-based and network-based security monitoring solutions and to include security content recommendation or development (host based and network signatures).
• Maintain and drive the development of new reports of Cyber Threat Intelligence analysis to peers, management and customer teams for purposes of situational awareness and making threat intelligence actionable.
• Provide support to the Network Operations Security Center during incident response and threat hunting activities that include cyber threat analysis support, research, recommending relevant remediation and mitigation.
• Conduct trending and correlation of various cyber intelligence sources for the purposes of indicator collection, shifts in TTPs, attribution and establish countermeasures to increase cyber resiliency.
• Host-based and network-based forensics related to the identification of advanced cyber threat activities, intrusion detection, incident response, malware analysis, and security content development (e.g., signatures, rules etc.); and cyber threat intelligence.
• Deep understanding of the cyber "Pyramid of Pain", Cyber Kill Chain, MITRE ATT&CK and the Diamond Model. Analysts should be able to conduct in-depth research into threat actors, tools, infrastructure, and TTPs using these frameworks.
• Ability to correlate and enrich data from intelligence sources with internal logs, alerts, and incident data from Splunk and Analyst1 to drive threat hunting and detection initiatives.
• Strong written and oral communication skills.

Preferred Qualifications

Must have at least one of the following certifications:

• Must have one of the following certifications: CASP+ CE, CCNP-Security, CISA, CISSP (or Associate), GCED, GCIH, CCSP

Additionally preferred certifications held:

• SANS GCTI
• Previous DOD, IC or Law Enforcement Intelligence or Counterintelligence Training/Experience.
• Knowledge of Structured Analytic Technique
• Developing scripts to support cyber threat detection that outputs results in a variety of formats, such as VB scripts, Python, C++, HTML, XML or other types most appropriate for the task.
• Proficient in one more of the following computer languages Python, Bash, Visual Basic or PowerShell to support cyber threat detection or reporting.
• Working familiarity with additional tools such as CrowdStrike Falcon, Tanium, Proofpoint TAP, and Zscaler.

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.

Pay Range:

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].

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.