Mid-Level Transport Network Engineer

Leidos Holding$59K — $106K *
Telecommunications & Hardware
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • B.S. Degree or equivalent experience in network engineering required.
  • 2-4 years of experience in routing, switching, load balancing, and firewalls.
  • Active Secret clearance is mandatory.
  • Hands-on experience with F5, Cisco, Palo Alto, or similar systems.
  • Experience with STIG compliance and vulnerability management required.
  • Proficient in troubleshooting and root cause analysis.
  • CCNA, Security+, or equivalent certifications are necessary.

Responsibilities

  • Execute patch testing in various lab environments including standalone and high availability setups.
  • Conduct quarterly STIG compliance scans and assessments for network infrastructure.
  • Build and manage virtual and hardware lab environments.
  • Document test outcomes and suggest deployment strategies.
  • Diagnose patch failures and work with vendors to resolve issues.
  • Mentor and supervise junior engineers involved in testing activities.
  • Ensure lab environments are operational and ready for testing.

Benefits

  • Opportunity to work independently with minimal oversight.
  • Supportive environment for mentoring junior engineers.
  • Dynamic work with a high volume of patch testing and STIG assessments.
  • Access to cutting-edge technologies and platforms.
  • Engagement in knowledge sharing and documentation practices.
Full Job Description

More About the Role:
Leidos is seeking a Network Engineer execute patch testing, STIG compliance assessments, and lab validation for assigned network infrastructure domain. Work independently with minimal oversight to ensure thorough testing and accurate recommendations supporting 72-hour SLA.

What You'll Get to Do:
•Execute comprehensive patch testing in lab environments (standalone, HA, stacks).
•Perform quarterly STIG compliance scans and assessments. 
•Build and maintain lab environments (virtual and hardware). 
•Document test results and provide deployment recommendations. 
•Troubleshoot patch failures and coordinate with vendors. 
•Supervise and mentor junior engineer on testing activities. 
•Maintain subject matter expertise on 10-15 solution types.
•Test 80-100 patches/year in assigned domain (30-35% of team workload). 
•Complete 50-60 STIG assessments/year. 
•Maintain lab availability and readiness for assigned solution types. 
•Accurate patch recommendations - minimize false positives/negatives. 
•Knowledge transfer through documentation and mentorship.

You'll Bring These Qualifications:
•Requires B.S. Degree and 2-4 years network engineering experience (routing, switching, load balancing, firewalls); years of experience can be in lieu of degree.
•Must be a U.S. Citizen and possess an active Secret clearance.
•Hands-on experience with F5, Cisco, Palo Alto, or similar platforms. 
•STIG compliance and vulnerability management experience. 
•Strong troubleshooting and root cause analysis skills. 
•CCNA, Security+, or equivalent certifications required. 

NGEN



Original Posting:
August 1, 2026

Pay Range:
Pay Range $59,150.00 - $106,925.00

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.

About Leidos Holding

Leidos Holding Careers

Joining Leidos Holding presents an unparalleled opportunity to advance one's career with a leader in innovation and technology. The company offers a plethora of job opportunities aimed at fostering professional growth and development in a diverse and inclusive environment.

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Leidos Holding is actively seeking skilled professionals who are passionate about leveraging their expertise to drive innovation and leadership in their fields. With a variety of open positions, Leidos Holding provides a platform for individuals to challenge themselves in a dynamic work environment.

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At Leidos Holding, innovation is at the core of everything they do. Employees are encouraged to think creatively and push boundaries. The company supports this drive for innovation through comprehensive professional development and diversity training programs that are designed to enhance skills and foster leadership.

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Leidos Holding is committed to creating a workplace where diversity is not only recognized but celebrated. With a culture that values and promotes diversity, Leidos Holding ensures that all team members have the opportunity to contribute, learn, and grow.

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For those starting their career, Leidos Holding offers internship programs that provide a robust foundation in the industry. Internships are a great way to develop essential skills, gain valuable work experience, and build professional networks.

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Employees at Leidos Holding enjoy a range of benefits designed to support their professional and personal lives. The company culture is built on a foundation of respect and integrity, providing a supportive and collaborative environment where every team member is valued.

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