Demo

Sr. Network Implementation Engineer

Leidos
Chantilly, VA Full Time
POSTED ON 8/21/2026
AVAILABLE BEFORE 9/20/2026
Description

The Digital Modernization Sector at Leidos has an opening for a Sr. Network Implementation Engineer to support computer data communications systems, in providing design specifications, testing and inspections for computer networks; plan and implementing upgrades; as well as, analyzing and organizing corresponding hardware and software combined solutions through network modeling.

The Job Duties Are As Follows

  • Interpret customer requirements and apply standard design approaches for service delivery. Fully document designs with diagrams, bill of materials, cabling sheets, configurations, and other supporting documents.
  • Schedule maintenance windows for migrating user connections from legacy to the modern infrastructure transition services with little to no impact on critical data flows.
  • Provide technical expertise to Operations engineers and technicians, supporting fault isolation and resolution. Solve tough problems with innovative and scalable solutions.
  • 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.
  • Supervise (not manage) other network support specialists to plan, coordinate, and implement network services.
  • Develop and improve design products, processes, and systems for our team to work efficiently and effectively.
  • Escalationpoint for incident management enterprise level outages which involves troubleshooting across multiple enterprise segments and teams.

Basic 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.
  • Experience specific to network engineering to include Tier III or higher network operations and/or network design and implementation.
  • Prior responsibility for production network hardware configurations for Cisco, Brocade, and/or Juniper.
  • Hands-on experience implementing and troubleshooting standard routing protocols in a production network, such as Open Shortest Path First (OSPF) or Border Gateway Protocol (BGP)
  • Hands-on experience implementing and troubleshooting standard switching and trunking protocols in a production network, such as Virtual Local Area Networks (VLANs), 802.1q, and port-channels.

Desired Qualifications

  • Network engineering and design experience specific to CAN/LAN. Experience should include application of industry standards, developing configurations, and integration of solutions into production environments.
  • Network engineering and design experience with MPLS WANs, network management tools, and firewalls.
  • Expert knowledge of routing and switching protocols and the ability to demonstrate knowledge through briefings and documentation. Extensive BGP experience a plus.
  • Cisco Certified Network Professional (CCNP) orJuniper Networks Certified Internet Professional - Enterprise Routing and Switching (JNCIP-ENT) equivalent knowledge.
  • Initiative and disciplined to work unsupervised as part of a network engineering team. Experience establishing process, developing documents, and organizing repositories 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

July 24, 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 onlyand 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.

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

Pay And Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits.

Securing Your Data

Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

Salary : $92,300 - $166,850

If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

What is the career path for a Sr. Network Implementation Engineer?

Sign up to receive alerts about other jobs on the Sr. Network Implementation Engineer career path by checking the boxes next to the positions that interest you.
Income Estimation: 
$108,098 - $130,480
Income Estimation: 
$131,611 - $156,576
Income Estimation: 
$194,188 - $238,415
Income Estimation: 
$121,346 - $138,513
Employees: Get a Salary Increase
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Job openings at Leidos

  • Leidos Omaha, NE
  • Description Targeting Analyst / Instructor Location: Offutt AFB, NE Clearance: TS/SCI required Organization: 363rd ISRW / 20 IS Leidos and the 363rd Intell... more
  • Just Posted

  • Leidos Oklahoma, OK
  • The Leidos digital modernization NISC IV team is looking to hire a skilled Hardware Engineer to support engineering, integration, and sustainment of critic... more
  • Just Posted

  • Leidos Gaithersburg, MD
  • Looking for an opportunity to make an impact? At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are ded... more
  • Just Posted

  • Leidos Bethesda, MD
  • Join Our Innovative Team at Leidos! At Leidos, you'll be part of a team that creates innovative solutions for the Navy, directly contributing to the readin... more
  • Just Posted


Not the job you're looking for? Here are some other Sr. Network Implementation Engineer jobs in the Chantilly, VA area that may be a better fit.

  • Vekner Consulting Springfield, VA
  • Overview Abile Group has an exciting and challenging opportunity for a Sr Network Engineer on a 10 year contract providing User Facing and Data Center Serv... more
  • Just Posted

  • NETALYSIS LLC Alexandria, VA
  • Job Description. Job Description. UNITED STATES CITIZENSHIP REQUIRED. MINIMUM INTERIM SECRET CLEARANCE WITH UPGRADE TO TOP SECRET. ONSITE - ALEXANDRIA, VA ... more
  • 25 Days Ago

AI Assistant is available now!

Feel free to start your new journey!