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Senior Juniper Network Engineer

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Robert Half

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Location:
United States , Lorton

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Category:
IT - Administration

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Contract Type:
Not provided

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Salary:

Not provided
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Job Description:

A government IT program is seeking a Senior Juniper Network Engineer to provide expert-level engineering, operations, and maintenance support for mission‑critical field communications systems used worldwide. This program delivers a wide range of IT applications and infrastructure services, including enterprise network support, service desk, workstation engineering, telecommunications engineering, mobility services, and more. This role supports a high‑visibility customer environment and requires someone who can operate independently, communicate effectively with technical and non-technical stakeholders, and manage complex network systems with a high degree of accuracy and professionalism.

Job Responsibility:

  • Serve as the primary Subject Matter Expert (SME) for a specialized government system, becoming the single point of technical authority for network-related issues
  • Provide independent operations & maintenance (O&M) support for mission‑critical systems, requiring broad and deep knowledge across applicable network technologies
  • Configure and support Juniper SRX‑series security devices (JNCIP‑SEC or JNCIE‑SEC level proficiency), ensuring alignment with industry best practices and federal security standards
  • Configure and support Juniper EX‑series switches using 1Gbps and 10Gbps backplanes, including copper and fiber connectivity and high‑availability (HA) solutions
  • Configure and support Cisco Firepower ASA firewalls, including AnyConnect VPN access, HA configurations, secure authentication integrations, and remote-access security
  • Design and maintain an out‑of‑band (OOB) management network using TrippLite serial consoles, iDRAC, and similar technologies
  • Collaborate with customers, contractors, and vendors on the design and specification of Private IP (PIP) and Internet circuits
  • Ensure high availability of Network Time Protocol (NTP) across all networks
  • Follow established configuration management processes to maintain consistency, security, and accuracy in network configurations
  • Develop and maintain technical documentation, network diagrams, and system references
  • Provide clear communication and briefings to customers, including senior leadership

Requirements:

  • Bachelor’s degree with 12+ years of experience, OR a Master’s degree with 10+ years of experience
  • High school diploma with 4+ years of additional relevant experience may be considered
  • Ability to obtain and maintain a Government Public Trust security clearance
  • Proven Subject Matter Expert in Juniper network infrastructure
  • Extensive experience providing O&M support to complex, mission‑critical systems
  • Strong background in network design, implementation, configuration, and troubleshooting
  • Demonstrated ability to work independently and collaboratively to resolve complex technical issues
  • Ability to effectively engage with users, customers, and stakeholders to diagnose and resolve issues
  • Strong briefing, communication, and customer‑facing skills
  • Hands-on experience with: Juniper SRX-series branch routers
  • Juniper EX-series switches
  • Cisco Firepower ASA firewalls
  • AnyConnect VPN clients
  • TrippLite serial consoles
  • Ethernet & TDMA-delivered Private IP & Internet circuits
  • Private APN cellular networks
  • Network Time Protocol (NTP)
  • Information security best practices & FISMA-aligned processes
  • Configuration management
  • Strong interpersonal skills and ability to work effectively with teams and customers

Nice to have:

  • Security engineering experience
  • Experience participating in the ATO (Authorization to Operate) process
  • Business analysis or requirements development experience
  • Technical writing and documentation experience
  • Prior government contracting experience
  • Experience supporting environments requiring federal clearances
What we offer:
  • medical, vision, dental, and life and disability insurance
  • eligible to enroll in our company 401(k) plan

Additional Information:

Job Posted:
April 10, 2026

Employment Type:
Fulltime
Work Type:
On-site work
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