Cyber Security Analyst

Description

Leidos is seeking a Cyber Security Analyst in San Antonio, TX. This position provides Tier II Cyber Security Analysis to C5

ISR Center Defensive Cyber Solutions Branch (DCSB) Defensive Cyber Operations (DCO). Beyond advising and guiding technical matters, this position is tasked with driving implementation and adoption of new tools, research, capabilities, frameworks, and methodologies while ensuring those already in use are implemented, utilized properly, and improved.

Schedule:

Day/Night Panama schedule– primarily hiring for night shift with the possibility to rotate to days

• Identify and offer solutions to gaps in capabilities and visibility
• Promote and drive research and implementation of automation and process efficiencies
• Intermediate command line experience that includes chaining Linux utilities such as tcpdump, sed, awk, and grep together
• Intermediate IDS (Snort, Bro/Zeek, etc.) creation and tuning, to include performing impact analysis on customer environments and review and correction of Tier I rules
• Analysis of alerts plus surrounding network traffic to provide remediation context
• Ability to consume open and closed source and search indicators in customer data, then generate new IDS configurations for future detection
• Basic hunt experience that includes sifting non-alert-based traffic and deriving meaningful results in the absence of corresponding OSINT
• Vulnerability awareness and able to determine applicability to customer environments, using data to establish attack attempts and success/failure
• Maintaining current threat awareness
• Ability to analyze complex (multipacket, multi-vector, multi-exploit, large volume) traffic and derive meaningful conclusions
• Self-directed research, development, customization, or other contributions to process improvement
• Continual enrichment of IDS and moderate ability to tune on the fly
• Ability to self-educate with non-comprehensive or incomplete documentation on new concepts, protocols, and data formats

• Bachelor's Degree and 4-8 years of cyber or previous IT experience
• Hands‑on cybersecurity network defense experience (Detect and Respond) within a Computer Incident Response organization. Hands‑on experience with a Security Information and Event Management tool (Arc Sight, Security Onion, etc.)
• Fluent in computer network Packet Capture (PCAP) analysis
• DoD 8570 IAT-II and CSSP-Analyst certifications required prior to starting
• Demonstrated advanced knowledge of industry accepted standards
• Motivated self-starter with strong written and verbal communication skills, and the ability to create complex technical reports on analytic findings
• Strong analytical and troubleshooting skills
• Must be a U.S. Citizen
• Candidate must possess an active TS/SCI and be approved customer SAP read‑ons
• 3+ years’ experience working in a SOC environment

• Deep technical understanding of core current cybersecurity technologies as well as emerging capabilities
• Demonstrated understanding of the life cycle of cybersecurity threats, attacks, attack vectors and methods of exploitation with an understanding of intrusion set tactics, techniques and procedures (TTPs)
• Familiarity or experience in Intelligence Driven Defense, Cyber Kill Chain methodology, and MITRE ATT&CK framework

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.