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Network Engineer Security Clearance

Job in Chantilly, Fairfax County, Virginia, 20151, USA
Listing for: Sentar Inc
Full Time position
Listed on 2026-02-12
Job specializations:
  • IT/Tech
    Systems Engineer, Cybersecurity, Network Engineer
Job Description & How to Apply Below
Position: Network Engineer with Security Clearance
Sentar is proud to be an employee-owned company, fostering a culture of empowerment, collaboration, and innovation. Sentar is dedicated to developing the critical talent that the connected world demands to create solutions to address the convergence of cybersecurity, intelligence, analytics, and systems engineering. We invite you to join the team where you can build, innovate, and secure your career. Sentar is seeking a Network Engineer in Chantilly, VA!

Role

Description:

As a Senior Network Engineer, you will design, install, maintain, and evaluate network systems and communications. You will gather user network requirements and provide necessary technical documentation while supporting the multi-enclave environment (Unclassified, Secret, and Top Secret) that enables users to access data securely across the network infrastructure.

Key Responsibilities
* Design, install, maintain, and evaluate network systems and communications systems
* Gather user network requirements utilizing multiple methodologies
* Provide necessary technical documentation, system requirements documents, and security requirements
* Troubleshoot and resolve network issues involving various protocols, topologies, and networking hardware
* Assist with network architecture design, feasibility, and cost studies
* Apply technical and business experience to improve processes for deploying and maintaining network infrastructure
* Work independently and collectively to help improve network solutions
* Design, deploy, test, certify, and patch network components including switches, firewalls, and load balancers
* Address interoperability issues for all features, components, and application dependencies
* Participate in Program Increments (PIs) and Agile Release Train (ART) activities
* Respond to and resolve critical network incidents within designated resolution timelines

Qualifications:

Clearance Level:
* Active Top Secret (TS) clearance with eligibility for Sensitive Compartmented Information (SCI)

Education:

* Bachelor's degree in Computer Science, Network Engineering, or related field

Experience:

* Minimum of 8 years of experience in network engineering
* Experience with SAFe Agile framework
* Strong understanding of multi-enclave network environments
* Demonstrated experience designing and implementing secure networks in government environments
* Relevant network certifications (CCNP, CCIE, or equivalent) preferred Advanced proficiency with:
* * Network hardware (Cisco, Arista, Sonic Wall)
* Network protocols (TCP/IP, DNS, DHCP, HTTP/S)
* Firewall configuration and management
* Load balancer implementation
* Software-defined networking
* VPN technologies
* Network security principles and practices
* Network monitoring and troubleshooting tools
* Network performance optimization Additional Technical Experience

Experience with :
* * Cloud networking (AWS Gov Cloud, SC2S, C2S)
* Containerization networking (Docker, Kubernetes)
* Infrastructure as Code (Terraform)
* Tunneling protocols (GRE, IPSec, SSH, SSL)
* Cross-domain solutions
* Network automation and orchestration
* Dev Sec Ops  practices and tools
* SAFe Agile methodologies Work Environment
* Primary location:
Chantilly, VA
* May require occasional travel for Program Increment planning sessions
* Must be a U.S. citizen and able to pass a background check and polygraph examination
* May require flexible scheduling to support critical operations
* Must be able to respond to critical network incidents within designated resolution timelines Benefits at Sentar:
Our unique ownership model attracts top talent, giving employees the freedom to take initiative and drive meaningful improvements. In addition to cultivating a thriving and inclusive work environment, Sentar offers an extensive benefits package designed to support the well-being of employees and their families. Employee ownership is the foundation of our culture, promoting participation, teamwork, and accountability while ensuring long-term financial security and a commitment to excellence.

* Voluntary Medical, Dental, Vision, with Health Savings or Flexible Spending Plan options
* Voluntary Life, Critical Illness, Accident, and Long Term Care insurance options
* Group Term Life, Short-Term and Long-Term Disability is provided by Sentar to all qualifying employees
* Generous 401(k) match
* Competitive PTO plan that graduates quickly with years of service
* Other leave programs; holiday schedule along with bereavement, maternity, jury and military duty
* Mental health awareness programs
* Tuition reimbursement
* Professional development reimbursement
* Recognition and Awards programs If you are not ready to apply for this position, submit your resume here to join our talent community . We'll keep you updated occasionally on new job opportunities. Sentar is an Affirmative Action and Equal Opportunity Employer M/F/Vets/Persons with Disabilities Our culture is one of inclusivity and support. Sentar is proudly an Equal Opportunity and VEVRAA…
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