Senior Juniper Network Engineer
Lorton, VA
Experience: 12
Education: BA
Category: Information Technology
Contractor Work Model: Onsite
Brand: 850-Rockville-S1
Compensation Range: 89.50 - 110.00 Per Hour
Job ID: 348413
Date Posted: 04/01/2026
Shortcut: http://jobs.systemone.com/LaKtby
Job Title: Senior Juniper Network Engineer
Location: Lorton, VA (on-site)
Type: Contract
Compensation: $89.50 - $110.00 per hour
Clearance: Must be able to obtain and maintain a Public Trust clearance (candidates must be able to work in the US without sponsorship)
Responsibilities:
- Provide expert-level network engineering support for the ESA V program supporting the Department of Justice in Lorton, VA.
- Manage and maintain Juniper SRX-series routers, Juniper EX-series switches, Cisco Firepower ASA firewalls, and other network security and infrastructure equipment.
- Implement and monitor security best practices in accordance with FISMA regulations, including configuring firewalls, VPNs, and high availability setups.
- Design, develop, and maintain technical documentation and system diagrams for field communications systems.
- Collaborate with customer personnel, vendors, and contractors to design and specify private IP and Internet circuits, ensuring high availability and security.
- Support the configuration and troubleshooting of network components, maintaining secure and resilient networks.
- Participate in the configuration management process for secure modifications to network devices.
- Ensure synchronization of NTP across all devices for system consistency.
- Liaise with senior management and provide briefings on system status and issues as required.
- BA degree with 12+ years of experience or MA degree with 10+ years of experience; in lieu, a high school diploma with 4+ years in relevant roles.
- Current eligibility for a Government Public Trust security investigation; security clearance required prior to start.
- Extensive experience supporting and maintaining mission-critical, complex network systems.
- Proven expertise with Juniper SRX-series routers (JNCIP-SEC or JNCIE-SEC preferred), Juniper EX-series switches, and Cisco Firepower ASA firewalls.
- Strong background in network security, FISMA compliance, and high availability configurations.
- Experience with VPNs, network troubleshooting, and secure remote management tools such as TrippLite serial consoles and Ethernet & TDMA circuits.
- Excellent communication, documentation, and collaborative skills, with the ability to brief senior management.
- Ability to work independently in a fast-paced environment.
- Security Engineering Experience
- Participated in ATO process
- Business Analysis/Requirements Development Experience
- Technical Writing and Documentation Experience
- Government contracting experience, particularly with the DOJ
- DOJ Clearance
System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.
System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.
#M-M2
#LI-RF1
Ref: #851-Rockville-S1
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