Sr. Network Design Engineer - Access

leidos· 00100 LEIDOS, INC.
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📍 Chantilly, VAFull time💰 USD 92K–167K

About this role

Leidos has an opening for a Sr. Network Design Engineer (Access) to support the customer’s various WAN and LAN networks, in providing network design, upgrades and config support to the architecture team; act as subject matter expert in WAN and LAN technologies and vendors; support customer’s intra- and inter- net and other data communications systems or segments of networked system; and by Providing tiered support as required.

The job duties are as follows:

                                                                                                     

  • Design and improve overall MPLS network architecture and network services.  Maintain relevant technical documentation. 
  • Develop secure network designs including configurations that align with Defense Information Security Agency (DISA) Security Technical Implementation Guides (STIGs) and enterprise policies. Obtain Authority to Operate (ATO) for new devices, software, and capabilities.
  • Perform lab equipment, software, application, and network services solution evaluation, testing, integration with NMS, and security certification.
  • Evaluate new network technologies, solution, and services.
  • Interpret customer requirements and apply industry standard design approaches for service delivery. Fully document designs with diagrams, bill of materials, cabling sheets, configurations, ability to brief designs
  • Provide technical expertise to Operations engineers and technicians, supporting fault isolation and resolution. Solve tough problems with innovative and scalable solutions.
  • Configuring and troubleshooting Quality of Service (QoS) and traffic optimization to maximize bandwidth usage.
  • Support Tier-4 production troubleshooting and develop pro-active network analysis solution of Operation team. 
  • Leverage complex network analysis tools to identify and predict problems in the network and aid in the post-mortem analysis of network anomalies.

Requirements

  • Required Clearance: TS/SCI with Poly
  • Candidate must have 16 years of experience that can be a combination of work history and education. This equates to a Doctorate and 8 years, master’s and 10 years, bachelor’s and 12 years, associates and 14 years or HS diploma and 16 years.
  • Must be compliant with DoD 8140 Information Assurance Technical (IAT) Level 2.
  • Juniper certification or training: JNCIA, JNCIP, and JNCIE. 
  • Experience in developing and implementing methodologies for analysis, testing, and support of CAN/LAN and WAN networks.
  • Familiar with firewalls and network timing.
  • Experience with network equipment and solution rolls out, as well as engineering documentation
  • Experience with operations and maintenance activities of MPLS networks, MPLS VPN services.
  • Experience using complex network analysis tools to identify and correct problems in the network while maintaining logs and records associated with reported problems or situations.
  • Knowledge of routing and switching protocols and the ability to demonstrate knowledge through briefings and documentation. Extensive BGP experience a plus.

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:

September 17, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $92,300.00 - $166,850.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Frequently Asked Questions

What is the salary for the Sr. Network Design Engineer - Access role at leidos?
The listed salary for this Sr. Network Design Engineer - Access position at leidos is USD 92K–167K. This is an Full time role.
Where is the Sr. Network Design Engineer - Access position at leidos located?
This Sr. Network Design Engineer - Access role at leidos is based in Chantilly, VA. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Sr. Network Design Engineer - Access role at leidos full-time or part-time?
This is listed as a Full time position. It is posted as a Sr. Network Design Engineer - Access role in the 00100 LEIDOS, INC. department at leidos.
Which team or department does the Sr. Network Design Engineer - Access at leidos belong to?
This Sr. Network Design Engineer - Access position is part of the 00100 LEIDOS, INC. department at leidos. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Sr. Network Design Engineer - Access position at leidos?
Click the "Apply Now" button on this page. You will be redirected to leidos's official application portal hosted on workday where you can submit your application directly.
When was the Sr. Network Design Engineer - Access job at leidos posted?
This Sr. Network Design Engineer - Access position at leidos was posted on Sep 17, 2026. Apply as soon as possible — early applications are often reviewed first.
Sr. Network Design Engineer - Access
leidos · 💰 USD 92K–167K
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