Principal Network Evaluator

00100 LEIDOS, INC.; Linthicum (MD); On-site; USD 131,000 - 237,000; Full time

Benefits offered by this job

Paid Time Off

11 paid Holidays

401K with company match

Flexible Schedules

Job summary

Leidos seeks a Principal Network Evaluator to support intelligence missions in its Intel Sector. The role focuses on proactive cyber defense, vulnerability assessment, incident response, and analytic reporting for government stakeholders.

You will work in a fast-paced environment with rapid prototyping and advanced technologies, collaborating across teams to deliver actionable insights and secure systems at scale.

Qualifications

• Bachelor's degree plus eleven (11) years of relevant experience or equivalent.
• Experience with computer network defense, vulnerability assessment, incident response, and cybersecurity analysis.
• Practical experience with Splunk and Elastic.

Responsibilities

• Conduct proactive computer network defense activities by analyzing systems and networks to identify vulnerabilities and mitigate cyber threats.
• Perform vulnerability assessments, analyze network traffic and audit logs, and produce reports for Government stakeholders.

Skills

Network security

Cybersecurity analysis

Analytical thinking

Incident response

Packet analysis

Education

Bachelor's degree + 11 years experience

Tools

Splunk

Elastic

Wireshark

tcpdump

Scripting languages

Job description

Leidos has a new and exciting opportunity for a Principal Network Evaluator in our Intel Sector. Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer 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. Join us and make a difference in National Security!

Job Summary:

Our program provides our customer's Operations organization with the best possible solutions for their mission needs. We achieve this through rapid prototyping, new development, and advanced technology research. From leading-edge visualizations to analytic development, we're always pushing the boundaries to find new and better data sources and tradecraft to answer intelligence questions. With a focus on collaboration and a fast-paced environment, our prototype development program is the ideal place to grow your skills and make a real impact.

Job Responsibilities & Qualifications:

• 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.

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).

Security Clearance:

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

Qualified candidates are eligible for enhanced incentives including up to a $25K cash sign on bonus or a paid time off bonus.

Pay Range: Pay Range $131,300.00 - $237,350.00 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.

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.Leidos.com.

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.

Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here.

Securing Your Data: Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [e-mail].

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.