Stennis Space Center, Mississippi


Job Description:

Leidos is seeking a Junior Cyber Network Defense Analyst to join our team on a highly visible cyber security single-award IDIQ vehicle that provides security operations center (SOC) support, cyber analysis, application development, and a 24x7x365 support staff. The Monitoring and Analysis team provide 24x7 support across 4 different shifts. We have Front half shifts (day and night) and back half shifts (day and night). The front half shift will work 12 hour shifts from Sunday – Tuesday and alternating Wednesdays. The back half shift will work 12 hour shifts from Thursday – Saturday and alternating Wednesdays. Candidates must have the ability to work non-core hours, if necessary.

Primary Responsibilities

+ Utilize a SIEM for enterprise monitoring and detection

+ Create Security Event Notifications to document investigation findings

+ Perform critical thinking and analysis to investigate cyber security alerts

+ Analyze network traffic using enterprise tools (e.g. Full PCAP, Firewall, Proxy logs, IDS logs, etc)

+ Collaborate with team members to analyze an alert or a threat

+ Stay up to date with latest threats

+ Monitor shared email box for notifications and requests

+ Utilize OSINT to aid in their investigation

+ Contribute to content tuning requests

Basic Qualifications

All Junior Cyber Network Defense Analyst candidates shall have a bachelor’s degree in Computer Science, Engineering, Information Technology, Cybersecurity, or related field AND a minimum of 2+ years professional experience in the areas listed below:

+ Network Administration

+ Unix/Linux Administration

+ Software engineering

+ Software development

+ Systems administration

+ Help desk/IT support

The ideal candidate is a self-motivated individual in pursuit of a career in cyber security.

Candidates should also demonstrate the following:

+ Familiarity with a SOC’s purpose and role within an organization

+ General understanding of common network ports and protocols (e.g. TCP/UDP, HTTP, ICMP, DNS, SMTP, etc)

+ Familiarity with network topologies and network security device functions (e.g. Firewall, IDS/IPS, Proxy, DNS, etc) .

+ Familiarity with packet analysis tools such as Wireshark

+ Able to perform critical thinking and analysis to investigate cyber security alerts

+ Familiarity with common malware and attack vectors

+ Familiarity with Windows operating systems and standard OS logging

+ Familiarity with Antivirus, DLP, and host based firewalls

Must have at least one of the following certifications:

+ Comptia: Security+, Network+, CASP


+ EC Council: CEH, CHFI, LPT, ECSA


+ Offensive Security: OSCP, OSCE, OSWP and OSEE

Must have current TS/SCI. In addition to specific security clearance requirements, all Department of Homeland Security SOC employees are required to obtain an Entry on Duty (EOD) clearance to support this program.

Preferred Qualifications

+ Familiar with SOC methodologies and processes

+ Familiarity with scripting languages (e.g. Python, Powershell, Javascript, VBS etc)

Pay Range: REQNUMBER: R-00062783

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. Leidos will consider qualified applicants with criminal histories for employment in accordance with relevant Laws. Leidos is an equal opportunity employer/disability/vet.

Stennis Space Center, Mississippi

At Leidos, quality performance means two things:

  1. Satisfying our customers by delivering the products and services they need on time and in budget.
  2. Continuously improving our processes so that our work meets requirements and is done right the first time.

Our proprietary EngineeringEdge® solution gives us a consistent, company-wide approach to planning, designing, developing, and delivering solutions that achieve our customers’ goals. Comprehensive and customizable, EngineeringEdge is based on industry standards and best practices from:

  • CMMI®, the CMMI Institute.
  • Project Management, the Project Management Institute.
  • the International Organization for Standardization (ISO®).
  • the International Council on Systems Engineering/INCOSE Corporation.
  • Electronic Industries Alliance.
  • Our four decades experience on a wide range of programs.

Many Leidos organizations have been able to earn coveted CMMI maturity level 3 and higher, as well as ISO 9001 organizational designations.

In addition, we have our own high standards for ethics and performance.
Investors : Employee Code of Conduct

What does this mean to our clients? High quality products and services, developed in an environment committed to continuously improving processes and uncompromising ethics.

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