Senior Network Engineer

Mission Technologies, a division of HII; Springfield (VA); On-site; USD 102,160 - 155,000; Full time

Benefits offered by this job

Best-in-class medical, dental, and vision plans

401(k) savings plan options

Paid holidays and paid time off

Job summary

Mission Technologies, a division of HII, is seeking a Mid-level Engineer Network to support critical cybersecurity and IT modernization initiatives. Key responsibilities include designing, deploying, and optimizing enterprise network environments.

The successful candidate will need a TS/SCI clearance and 7+ years of experience in network engineering. A great benefits package including medical plans, 401(k), and tuition reimbursement is offered.

Qualifications

• 7+ years of hands-on experience administering or engineering Enterprise networks.
• Experience leading network engineering methodologies to deliver enterprise-grade IT solutions.
• Comprehensive knowledge of network security appliances and protocols.

Responsibilities

• Design and deploy Enterprise and data center network environments.
• Develop documentation of network systems and components.
• Analyze and assess new technologies for network modernization.

Skills

Network engineering techniques

Troubleshooting skills

Network management

Performance optimization

Education

Bachelor's degree in a related field

Relevant Master's degree

PhD or Juris Doctorate in a related field

Tools

Firewalls

Encryptors

Network monitoring tools

Job description

Requisition Number: 29069

Required Travel: 0 - 10%

Employment Type: Full Time/Salaried/Exempt

Anticipated Salary Range: $102,160.00 - $155,000.00

Security Clearance: TS/SCI

Level of Experience: Mid

Summary

This position is part of our Cyber and Intelligence division, supporting Enterprise-Level Security and Modernization efforts across IT infrastructure, cybersecurity, physical facilities, and personnel operations.

Program Overview

• High-impact government program focused on enhancing and securing mission-critical systems and environments. Launched in early 2026.
• Active TS/SCI security clearance required.
• Salary ranges for positions:
• Engineer Network 3: $102,160 - $155,000
• Engineer Network 4: $119,000 - $169,413

What You Will Do

• Design, deploy, and optimize Enterprise and data center network environments.
• Translate requirements into network solutions, modifications, and support upgrades (network reconfigurations, hardware and software acquisitions, installation, testing).
• Support the planning, development, integration, and transition to O&M.
• Develop and maintain documentation of network systems, subsystems, and components (e.g., as-built documentation, capacity planning, etc.).
• Explore, research, investigate, analyze, and assess new technologies to modernize and improve existing network solutions.

Minimum Requirements

• 7+ years of hands‑on experience administering or engineering Enterprise networks.
• Demonstrated experience leading the employment of network engineering techniques, methodologies, processes, and practices to design, engineer, implement, test, secure, and deliver a variety of enterprise‑grade IT networking solutions.
• Experience with secure Enterprise information systems, circuits, configurations, and protocols and associated security appliances (encryptors, firewalls, etc.).
• Experience with network traffic flow analysis, network management, network topologies, network security, performance, high availability, load balancing, and fault‑tolerant architectures.
• Advanced troubleshooting skills to quickly identify and resolve degraded entities while maintaining a secure posture.
• Must meet DoD 8140/CSWF 652-Intermediate or be willing to obtain the appropriate credential within 6 months.
• TS/SCI clearance required with ability to obtain a CI Poly.

Experience Levels

• Engineer Network 3: 5 years relevant experience with Bachelors in related field; 3 years relevant experience with Masters in related field; 0 years experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 9 years relevant experience.
• Engineer Network 4: 9 years relevant experience with Bachelors in related field; 7 years relevant experience with Masters in related field; 4 years relevant experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 13 years relevant experience.

Benefits

• Best-in-class medical, dental and vision plan choices.
• Wellness resources.
• Employee assistance programs.
• 401(k) savings plan options.
• Financial planning tools, life insurance.
• Employee discounts.
• Paid holidays and paid time off.
• Tuition reimbursement.
• Early childhood and post-secondary education scholarships.
• Occasional bonus or other non-recurrent compensation addressed by recruiter at screening phase.

Equal Employment Opportunity

All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, physical or mental disability, age, veteran status or any other basis protected by federal, state, or local law.

Do You Need Assistance?

If you need a reasonable accommodation for any part of the employment process, please send an e‑mail to [e-mail] and let us know the nature of your request and your contact information. Reasonable accommodations are considered on a case‑by‑case basis. Only inquiries concerning a request for reasonable accommodation will be responded to from this email address.

Additionally, you may also call 1-844-849-8463 for assistance. Press #3 for HII Mission Technologies.