Sr Network Engineer Job at Lorien (Dulles)

Sr Network Engineer

Lorien

Location:
United States , Dulles

Category:
IT - Administration

Contract Type:
Not provided

Salary:

130000.00 - 140000.00 USD / Year

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Job Description:

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.

Job Responsibility:

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

Requirements:

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
US CITIZEN/GREEN CARD ONLY

Nice to have:

Knowledge of Carrier Services WAN, MPLS, DIA, etc is a plus
Experience with Citrix VDA and ADC is a plus
Certifications o Fortinet technologies (NSE 4 or higher preferred) o CCNP or higher preferred

Additional Information:

Job Posted:
May 05, 2026

Employment Type:

Fulltime

Work Type:

On-site work

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