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From the employer's careers site First seen 11 Nov 2026

Principal Network Evaluator

Salary

$131,300 - $237,350 per year

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Description

We are seeking a motivated Principal Network Evaluator to support an exciting Computer Network Defense mission. As a Principal Network Evaluator, you will work closely with Government stakeholders to identify vulnerabilities, investigate cyber threats, conduct network defense operations, and provide actionable recommendations that strengthen enterprise security and mission capabilities.

Mission Focus Conduct proactive computer network defense activities by analyzing systems and networks to identify vulnerabilities, detect network intrusions, monitor security events, assess attack surfaces, and develop operational courses of action to mitigate cyber threats.

Technical Proficiency Perform vulnerability assessments using industry-standard tools and techniques, analyze network traffic and audit logs, conduct packet analysis, research emerging technologies and vulnerabilities, support digital forensics and exploitation activities, document analytic findings, and produce comprehensive reports and recommendations for Government stakeholders.

Qualifications Bachelor's degree plus eleven (11) years of relevant experience, or equivalent. Experience with computer network defense, vulnerability assessment, incident response, packet analysis, network protocols, SIEM technologies, and cybersecurity analysis. Strong networking knowledge and analytical and problem-solving skills. Experience researching system vulnerabilities and developing mitigation strategies. Practical experience with Splunk and Elastic.

Security Clearance Active TS/SCI with Polygraph required to be considered for this role.

Desirable Skills Experience with Wireshark, tcpdump, or similar network analysis and SIEM tools. Knowledge of digital forensics, intrusion detection systems, vulnerability scanning technologies, MITRE ATT&CK, NIST cybersecurity frameworks, and scripting languages. Relevant cybersecurity certifications (Security+, CySA+, GCIH, GCIA, GCFA, CISSP, or equivalent).

Benefits Competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more.

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Skills

Required

  • computer network defense
  • vulnerability assessment
  • incident response
  • packet analysis
  • network protocols
  • SIEM technologies
  • cybersecurity analysis
  • Splunk
  • Elastic

Nice to have

  • Wireshark
  • tcpdump
  • digital forensics
  • intrusion detection systems
  • vulnerability scanning technologies
  • MITRE ATT&CK
  • NIST cybersecurity frameworks
  • scripting languages
  • Security+
  • CySA+
  • GCIH
  • GCIA
  • GCFA
  • CISSP

Ready to apply?

You apply with the employer directly. Their original posting is here: https://leidos.wd5.myworkdayjobs.com/en-US/External/job/Linthicum-Heights-MD/Principal-Network-Evaluator_R-00196551

Apply on Leidos