HomeJob SearchSr Network Engineer (onsite)
Overlay Main Banner

Sr Network Engineer (onsite)

Job Type
Permanent
Location
Dulles, Virginia
Salary
US$130,000.00 - US$140,000.00 per year
Job Ref
BBBH2322108_1777642164
Date Added
May 1st, 2026
Consultant
michael sheahan

US CITIZEN/GREEN CARD ONLY

Position Overview:

The Senior Network Engineer will be part of Network team responsible for designing, deploying and maintaining scalable, highly available network infrastructure spanning across multiple co-location facilities that support nearly 10,000 users and growth. This position will be responsible for providing advanced technical and engineering support for IT infrastructure and customer-facing services. Use infrastructure tools and techniques to quickly identify and successfully resolve infrastructure, operational requests and issues while acting as an escalation point for corporate IT departments.

Essential Duties/Responsibilities:

  • Deploy, configure, manage and monitor network infrastructure (LAN, WAN) for high availability optimal performance as well as network security features
  • Install, set up and upgrade firmware on network equipment. Perform periodical preventative maintenance of networking equipment software/firmware.
  • Provide engineering support to install, configure, optimize, troubleshoot, monitor and manage deployment of Cisco routers, switches and FortiGate firewalls
  • Serve as the network/security subject matter expert around Fortinet technologies and solutions
  • Deploy and manage virtual networks and support cloud infrastructure
  • Automate network monitoring provides a proactive approach to mitigate network issues.
  • Create and maintain all required network and technical documentation including diagrams and troubleshooting methodologies using provided tools
  • Prepare network asset management including maintenance of network component inventory and technical specifications.
  • Answer, evaluate and prioritize network incidents/tickets as they relate to outage escalation. Participate in triaging and resolving Tier 4 requests
  • Perform network packet capture and analyze to troubleshoot and debug network issues
  • Keep stakeholders and project managers apprised of project status throughout the project life cycle with detailed and thorough communication
  • Liaise with vendors, customers and other IT personnel for problem resolution
  • Self-motivated with the ability to follow directions, complete time-sensitive tasks and meet deadlines with minimal supervision
  • Identify opportunities to implement improvements and increased efficiencies on existing infrastructure
  • Identifies and addresses network related vulnerabilities and establishes a process to mitigate them.
  • Establish, document, and maintain network technical standards, baseline configurations, and support processes and procedures.
  • Fulfill routine communication requirements. Utilize ticketing system to document and manage client requests/issues and follow change management policies and procedures.
  • Follows and adheres to simple and complex instructions, including SOP's.
  • Ability to work in a fast-paced, high-pressure environment
  • Willing and able to travel for on-site installation.
  • Flexibility to work evenings, weekends and/or holidays, as needed.
  • Other duties as assigned or required.

Education/Credentials/Experience:

  • Bachelor's degree in Information Technology or related field preferred. Equivalent work experience will also be considered.
  • 10 years or more of experience in a corporate IT operations environment.
  • 5 years' hands-on experience in installing, configuring and troubleshooting networking technologies including switches, routers, and firewalls
  • Must have experience with IPsec tunnel configuration, routing tables, dynamic routing and network troubleshooting
  • Experience in the setup of DMZ and/or multi-layer network zones per data/information classification
  • Experience in designing and leading the implementation of small to medium scale projects
  • Experience with Fortinet technologies such as FortiGate, FortiManager, FortiAnalyzer, etc.
  • Experience with Service Provider/Datacenter class Cisco ASR/ISR routers and Nexus switches
  • Experience with building hybrid environments to span existing on-prem datacenters and Azure/AWS
  • Experience working with and designing disaster recovery datacenter solutions
  • Experience with packet capture and network monitoring tools such as PRTG
  • Experience with Cisco Meraki switches, WAPs and dashboard
  • Deep understanding of networking technologies and protocols such as, L2/L3 Routing/Switching, IPSEC, BGP, MPLS, VRF, QoS, Spanning-Tree, OSPF, 802.11, ACL, DHCP, TCP/IP, DNS
  • Ability to develop network topology, wire diagrams and document detailed lab test plans and reports.
  • Experience with established configuration and change management policies to ensure awareness, approval and success of changes made to network infrastructure during critical maintenance window
  • Knowledge of Carrier Services WAN, MPLS, DIA, etc is a plus
  • Familiarity with Windows, Active Directory, LDAP, RADIUS
  • Experience with Citrix VDA and ADC is a plus
  • Certifications o Fortinet technologies (NSE 4 or higher preferred) o CCNP or higher preferred

Position Core Competencies:

  • Problem Solving Acts collaboratively in resolving problems. Ability to present solutions rather than just identifying problems. Can acknowledge when one does not know something and is willing to take personal responsibility for finding a solution.
  • Technical Skills: Uses current technology and tools to solve user issues. Broad understanding of technical issues and ability to keep up to date with new technologies. Has strong aptitude for quickly learning new technologies.
  • Innovation: Continuously improves the business by generating new and practical ways of doing things in order to solve problems. Encourages others to propose innovative solutions.
  • Communication: Able to communicate clearly in written and verbal form with the team as well as with end users. Shares knowledge with the team without hesitation.
  • Accountability: Follows through commitments and agreements. Take responsibility for mistakes and deadlines. Owns projects and tasks and completes them effectively and efficiently.
  • Stress Tolerance: Must be able to effectively handle stressful or adverse situations and work effectively under difficult conditions. Ability to maintain composure while handling technical emergencies or tight deadlines on projects.
  • Customer Service: Delivers courteous service and always delivers what has been promised. Takes personal responsibility for resolving user issues. Seeks user improvement ideas.

Physical Demands/Working Conditions:

  • Must be able to lift and/or move up to 30 lbs of equipment. May be required to stand, walk, stoop, kneel, crouch or crawl
  • Ability to perform work in small spaces may require bending and/or crawling to access cables, etc.
  • Must be able to sit/work at a computer desk, using mouse and viewing screen, for potentially long periods.
  • May be required to visit and work within correctional facilities.
  • May be required to travel up to 20% of time to support facilities and remote staff, both locally and throughout different states.

Impellam Group and its brands are equal-opportunity employers committed to diversity and inclusion. All qualified applicants will receive consideration without regard to race, color, religion, gender, sexual orientation, pregnancy or maternity, national origin, age, disability, veteran status, or any other factor determined to be unlawful under applicable law. We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application, interview process, pre-employment activity, and the performance of crucial job functions.

If you require additional disability considerations, modifications, or adjustments please let us know by contacting HR-InfoImpellamNA@impellam.com or fill out this form to request accommodations.

Similar Jobs

Apply to this Job


Share this Job

More Information

There's much more to explore!

Subscribe to our newsletter

With insight across the whole of Lorien, we’ll keep you ahead of the curve on the talent market.