Senior Transport Network Engineer

Leidos Holding$92K — $166K *
Aerospace & Defense
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • B.S. Degree with 8-12 years of experience in network security and vulnerability management (or equivalent experience).
  • Active Secret clearance required, must be a U.S. Citizen.
  • Expertise in F5, Cisco, and enterprise network infrastructure.
  • Experience with DoD STIG compliance and audits.
  • Strong skills in vendor relationship and escalation management.
  • Preferred certifications include CISSP, CCNP, or equivalent.

Responsibilities

  • Own the strategy and execution of the vulnerability management program.
  • Approve or reject patch deployments based on lab validation outcomes.
  • Lead quarterly STIG compliance assessments and audit preparations.
  • Engage with vendors such as F5, Cisco, and Palo Alto for escalations.
  • Mentor and develop junior and mid-level engineers.
  • Report program status, risks, and metrics to senior leadership.
  • Lead emergency responses to zero-day vulnerabilities and critical patches.

Benefits

  • Professional development and training opportunities.
  • Access to cutting-edge technology and tools.
  • Opportunity to work with high-profile vendors in the industry.
  • Engagement in significant defense-related projects.
  • Collaborative team environment focused on innovation.
Full Job Description

More About the Role:
Leidos is seeking a Network Engineer to lead vulnerability management and STIG compliance program for NMCI network infrastructure. Provide technical leadership, make authoritative patch deployment decisions, and ensure 72-hour SLA compliance across 40+ solution types supporting thousands of production devices.

What You'll Get to Do:
•Own vulnerability management program strategy and execution.
•Approve/reject patch deployments based on lab validation results. 
•Lead quarterly STIG compliance assessments and audit preparation. 
•Engage vendors (F5, Cisco, Palo Alto, etc.) at executive/technical levels for escalations. 
•Mentor and develop mid-level and junior engineers.
•Report program status, risks, and metrics to senior leadership. 
•Lead emergency response to zero-day vulnerabilities and critical patches.
•72-hour patch SLA compliance (>90%).
•100% completion of quarterly STIG assessments (160/year). 
•Quality of patch approvals - accountable for production impact. 
•Team performance, development, and retention. 
•DoD/Navy audit readiness and compliance.

You'll Bring These Qualifications:
•Requires B.S. Degree and 8-12 years network security and vulnerability management experience; years of experience can be in lieu of degree.
•Must be a U.S. Citizen and possess an active Secret clearance.
•Expert knowledge of F5, Cisco, firewalls, and enterprise network infrastructure.
•DoD STIG compliance and audit experience. 
•Strong vendor relationship and escalation management skills. 
•CISSP, CCNP, or equivalent certifications preferred.

NGEN

Original Posting:
August 1, 2026

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 $92,300.00 - $166,850.00

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.

Explore Career Opportunities

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.

Innovation and Professional Growth

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.

Commitment to Diversity and Inclusion

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.

Internship Programs

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.

Benefits and Culture

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.

Join the Team

Leidos Holding is hiring! Explore job opportunities that match your skills and interests. Leidos Holding looks for driven, curious, and innovative individuals to join their team. Positions are available across various disciplines and experience levels.

Stay Connected

Stay informed with the latest career tips, industry insights, and company news from Leidos Holding. Subscribe to receive updates and be the first to know about new job opportunities, company developments, and more.

Prepare for Your Interview

To prepare for an interview at Leidos Holding, candidates should familiarize themselves with the company's missions and values, update their resumes, and be ready to discuss how their background and skills align with the position they are applying for.

Networking and Career Advancement

Leidos Holding encourages its employees to engage in networking within the company to discover new opportunities for career advancement. The leadership team at Leidos Holding is dedicated to supporting employees in their career paths with ample opportunities for networking and growth.

Explore Leidos Holding Jobs and Careers

Discover the exciting career opportunities at Leidos Holding today. With a commitment to employee growth, innovation, and diversity, Leidos Holding is the perfect place to advance your career. Check out the latest job listings and find your perfect fit at Leidos Holding.

SEARCH LEIDOS HOLDING JOBS

READ CAREERS BLOG

Job Alert Emails

Customize your subscription to receive job alerts and insider tips tailored to your preferences from Leidos Holding. See what exciting and rewarding opportunities await in your professional journey.
Learn more about Leidos Holding

Similar Jobs

More Jobs at Leidos Holding

More Aerospace & Defense Jobs

Find similar Senior Transport Network Engineer jobs: