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Junior to Mid-Level Network Engineer

Job in Chantilly, Fairfax County, Virginia, 22021, USA
Listing for: Jacobs
Full Time position
Listed on 2026-02-16
Job specializations:
  • Engineering
    Systems Engineer, Cybersecurity
Salary/Wage Range or Industry Benchmark: 60000 - 80000 USD Yearly USD 60000.00 80000.00 YEAR
Job Description & How to Apply Below

Overview

At Jacobs, we're challenging today to reinvent tomorrow by solving the world's most critical problems for thriving cities, resilient environments, mission-critical outcomes, operational advancement, scientific discovery and cutting-edge manufacturing, turning abstract ideas into realities that transform the world for good.

Knack Works is seeking a qualified and highly motivated Junior to Mid-Level Network engineer to support the design, implementation and maintenance of our network infrastructure in the Chantilly, VA office. The role is ideal for someone with hands-on experience in routing, switching and firewall technologies who enjoys designing and developing technical networks.

Responsibilities
  • Collaborate with a team of engineers to design, implement and test features and functionality to support Knack Works’ high performance computing products
  • Interact with customers to gather requirements and help develop use cases
  • Assist in the design and planning of network communication systems
  • Provide specification documentation and detailed schematics for network architecture
  • Develop and define techniques and tools to support the most efficient solution to meet program needs
  • Conduct testing of network design and implementation
  • Maintain and provide technical expertise in all areas of hardware (network and computer), software interconnections, and interfaces such as routers, firewalls, switches, bridges, gateways, etc.
  • Troubleshoot network connectivity, performance, and security issues
  • Upgrade and implement improvements to the entire network system for the supported programs
  • Support LAN/WAN, VLANs, VPNs, and basic QoS configurations
  • Perform hardware installation, cabling coordination, and device turn-ups
  • Maintain accurate network documentation, including network diagrams and drawings, IP addressing schemes, and device configurations and inventories
  • Follow change management and implementation best practices
  • Collaborate with systems, security, and support teams as needed
What You’ll Need
  • 1 to 4 years of hands-on network engineering or network support experience with a bachelor’s degree in Computer Engineering, Network Engineering or related field
  • Solid understanding of routing protocols (e.g., OSPF, BGP basics)
  • Switching technologies (VLANs, STP, trunking)
  • Firewall concepts and rule management
  • Experience with installation and implementation of network hardware
  • Familiarity with common networking vendors (e.g., Cisco, Palo Alto, Juniper, etc.)
  • Ability to create and maintain clear technical documentation
  • Strong troubleshooting, problem-solving and analytical skills
  • Good communication and collaboration skills with the ability to work in a team environment
  • Experience with LAN/WAN operations and protocols
  • Experience working in development and operational networking environments
  • A current active TS with SCI eligibility and willingness to take a polygraph exam
  • Ability to obtain a CompTIA Security+ CE certification within the first 6 months of employment
Desired Qualifications
  • VMware vSphere configuration and maintenance experience
  • A valid CompTIA Security+ CE certification
  • Network certifications (CCNA, Network+, or equivalent)
  • Experience with VPN technologies (site-to-site and remote access)
  • Wireless networking
  • Network monitoring tools
  • Exposure to cloud networking (AWS, Azure or similar)
  • Experience working in an enterprise or multi-site environment
What We Offer
  • Opportunity to grow into a senior network engineering role
  • Hands-on exposure to real-world network projects
  • Supportive team environment with mentoring
  • Competitive salary and outstanding benefits package
  • Training and certification support
  • Our health and welfare benefits are designed to invest in you, and in the things you care about. Your health. Your well-being. Your security. Your future. Employees have access to medical, dental, vision, and basic life insurance, a 401(k) plan, paid time off, and Profit-Sharing Plan (PSP) which includes both PSP contributions and an optional 401(k) plan (available immediately, and the ability to purchase company stock at a discount).

    Eligible employees may also enroll in a deferred compensation plan or the Executive Deferral Plan. And certain roles…
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