Cyber Security AnalystLeidos Inc • Adelphi, MD, United States

Cyber Security Analyst

Leidos Inc • Adelphi, MD, United States

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Description

Leidos Enterprise & Cyber Solutions Defense group is seeking a Cyber Security Analyst to support the C5ISR DCSB contract for a Full Time opening. This position is supporting US Army Command, Control, Computers, Communications, Cyber, Intelligence, Surveillance, and Reconnaissance (C5ISR) Defensive Cyber Solutions Branch (DCSB); performing the mission of Network Defense 24 hours a day, 7 days a week within a high-visibility DOD Security Operations Center (SOC).

Primary Responsibilities

Coordinate investigation and response efforts throughout the Incident Response lifecycle
Correlate and analyze events and data to determine scope of Cyber Incidents
Acquire and analyze endpoint and network artifacts to determine impact direct remediation efforts for affected subscribers
Recognize attacker tactics, techniques, and procedures as potential indicators of compromise (IOCs) that can be used to improve monitoring, analysis and Incident Response.
Develop, document, and maintain Incident Response process, procedures, workflows, and playbooks
Tune and maintain security tools (IDS and SIEM) to reduce false positives and improve SOC detection capabilities
Document Investigation and Incident Response actions taken in Case Management Systems and prepare formal Incident Reports for affected subscribers
Work in a dynamic and fast-paced environment to defend the DODIN from highly-capable advanced persistent threats (APTs).

Basic Qualifications

Require BS degree and 4-8 years of prior relevant experience in order to operate within the scope contemplated by the level.; additional experience in lieu of degree may be acceptable.

Team player comfortable working with others to achieve mission objectives

Able to support traditional SOC shift work (i.e. days / swings / mids)

Demonstrated experience utilizing an enterprise Security Information and Event Management (SIEM) system to monitor data flow between networks

Hands-on experience analyzing high volumes of logs, network data (e.g. Netflow, Full Packet Capture) to identify malicious, suspicious, or non-compliance activity with varying degrees of complexity & sophistication

Background in traffic and / or packet analysis

Good understanding of TCP / IP, common networking ports and protocols, traffic flow, system administration, OSI model, defense-in-depth and common network security elements.

Understanding of cloud security concepts and considerations.

Must have a DoD-8570 IAT Level 2 baseline certification (Security+ CE) and CSSP-Infrastructure Support certification to start.

Candidate must possess an active TS / SCI with SAP Eligibility.

Familiarity with Unix systems.

Preferred Qualifications

Hands-on cybersecurity experience (Protect, Detect, Respond and Sustain) within a Computer Incident Response organization.

Motivated self-starter with strong written and verbal communication skills, and the ability to create complex technical reports on analytic findings.

Demonstrated understanding of the life cycle of network threats, attacks, attack vectors and methods of exploitation with an understanding of intelligence driven defense and / or Cyber Kill Chain methodology.

Experience in a 24x7 environment.

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 : September 15, 2025

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 $85,150.00 - $153,925.00

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.

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Cyber Security Analyst • Adelphi, MD, United States

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