Cyber Security Analyst

Company: Leidos
Location: Arlington
Posted on: April 1, 2026

Job Description:

Leidos has a current job opportunity for a Cyber Security Analyst on the DISA GSM O-II program in Arlington, VA - this position is 100% on-site and applicants must be willing to support rotating shift work. POSITION SUMMARY: This position provides 24x7 cybersecurity monitoring and analysis services for Department of Defense networks above the SECRET level . This includes performing real-time cyber threat intelligence analysis, correlating actionable security events, performing network traffic analysis using raw packet data, and participating in the coordination of resources during the incident response process . PRIMARY RESPONSIBILITIES: Review DoD and open-source intelligence for threats and to identify Indicators of Compromise (IOCs) and integrate those into sensors and SIEMs Utilize alerts from endpoints, IDS/IPS, netflow , and custom sensors to identify compromises o n customer networks/endpoints Review massive log files, pivot between data sets, and correlate evide nce for incident investigations Triage alerts to identify malici ous actors on customer networks Report incide nts to customers and USCYBERCOM BASIC QUALIFICATIONS: Active DoD Top Secret security clearance with SCI eligibility required for consideration. Bachelors Degree and 4 years of prior relevant experience; additional work experience or Cyber courses/certifications may be substituted in lieu of a degree. Demonstrated understanding of TCP/IP, common networking ports and protocols, traffic flow, system administration, OSI model, defense-in- depth and common security elements. Motivated self-starter with strong written and verbal communication skills, and the ability to create complex technical reports on analytic findings DoD 8570 IAT level II or higher certification such as CompTIA Security CE, ISC2 SSCP, SANS GSEC prior to starting. DoD 8570 CSSP-A level Certification such as CEH, CySA , GCIA or other certification is within 180 days of hire. Demonstrated commitment to training, self-study and maintaining proficiency in the technical cyber security domain and an ability to think and work independently Strong analytical and troubleshooting skills Willing to perform shift work Must be a US Citizen PREFERRED QUALIFICATIONS: CND experience (Protect, Detect, Respond and Sustain) within a Computer Incident Response organization. Demonstrated understanding of the life cycle of network threats , attacks, attack vectors and methods of exploitation with an understanding of intrusion set tactics, techniques and procedures (TTPs). Advanced understanding of TCP/IP, common networking ports and protocols, traffic flow, system administration, OSI model, defense-in- depth and common security elements. Demonstrated hands-on experience analyzing high volumes of logs, network data ( e.g. Splunk, Suricata, Zeek , Full Packet Capture), and other attack artifacts in support of incident investigations. In-depth knowledge of architecture, engineering, and operations of at least one enterprise SIEM platform ( e.g. Splunk ES , CoreLight /Elastic ). Experience and proficiency with any of the following: Splunk , Suricata, Zeek , Full Packet Capture, Network Forensics , Endpoint Security. Experience with malware analysis concepts and methods. Unix/Linux command line experience. Scripting and or programming experience to write Suricata and Zeek rule sets . Motivated self-starter with strong written and verbal communication skills, and the ability to create complex technical reports on analytic findings. Familiarity or experience in Intelligence Driven Defense and/or Mitre ATT&CK, and/or Cyber Kill Chain methodolog ies . Existing 8570 CSSP Analyst Certifications (CEH) , CySA etc . 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. Original Posting: February 27, 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 $87,100.00 - $157,450.00 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.

Keywords: Leidos, Germantown , Cyber Security Analyst, IT / Software / Systems , Arlington, Maryland