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Job #: R-00108530
Location: O'Fallon, IL
Category: Network Administration and Ops
Schedule (FT/PT): Full Time
Travel Required: No
Shift: Day
Remote Type: No Remote
Clearance: Secret
Referral Eligibility: Eligible
Referral Bonus Amount: $3000
Group: Defense

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Leidos has a current job opportunity for a Network Service Engineer onsite at Scott Air Force Base, IL. An active Secret security clearance is required.

Position Summary:

Our customer, the Defense Information Systems Agency (DISA), provides, operates, and assures command and control of the Defense Information System Network (DISN) services to the warfighter, national leaders and other mission and coalition partners across the department of Defense (DoD) and national security organizations.

Primary Responsibilities:

  • Proficient knowledge of various network hardware equipment specifications, configuration and testing processes, and industry specifications.

  • Provide engineering support and advanced technical operational support to the Defense Information Systems Agency Network by installing and configuring network systems, diagnosing hardware/software faults, solving technical and application problems via phone, in person, or logging into the devices.  (Cisco Transport Controller, Cisco Prime Optical, Ciena One Control, GIG Interconnection Approval Process database)

  • Perform customer coordination, Initial Test and Acceptance (IT&A), execution of all reporting functions, and complete data input associated with new service activations to ensure they are implemented in accordance with Defense Information Systems Agency (DISA) standards.

  • Experience with DWDM, OTN, IP, and encryption (Ciena, Cisco, Juniper) devices.

  • Assist technicians with various types of telecom test equipment and bit error rate cell test sets (ACTERN, Firebird, Digital Lightwave).

  • Ability to work in a team environment, but self-driven to complete assignments while continually developing proficiencies in processes.

  • Provide input on design and evaluate various components of the network, recommend, and implement new technologies to enhance current and future network capabilities.

  • Provide specifications for network architecture and perform needs assessments.

  • Advance configuration, review, and development of network infrastructure devices (DWDM, MSPP, ODXC, CTP, routers, switches, etc.)

  • Utilize systems analysis techniques and procedures, including consulting with users to determine hardware, software, or system functional requirements in support of Defense Information Systems Agency resources.

  • Design and implement solutions to highly technical problems through testing, documentation, and modification of configuration data on network resources.

  • Design data and voice networks carried over various transmissions systems, router to router connections using military and commercial protocols such as BGP and ISIS, switch-to-switch trunking to include VLANS, and circuit configurations through multiplexers.

  • Ensure all information (POC, location, & interface) is correct and formatted properly according to provided requirements.

  •  Verify correct points of contact (POC) for each location through which the circuit traverses.

  •  Engage with the DISA project managers and/or customers to resolve issues with incomplete or unclear requirements.

  • Reach out to stakeholders and facilitate approvals as necessary to ensure continual forward progress of the service request.

Basic Qualifications:

  • Bachelor's degree and 4 – 8 years of prior relevant experience or Master’s degree with 2 – 6 years of prior relevant experience; additional years of experience can be substituted in lieu of a degree.

  • Network engineering, problem management, and performance management experience.

  • Experienced knowledge of networking architecture, evaluating, and recommending new technologies to enhance current capabilities and performing needs assessments.

  • Knowledge of data and voice network design carried over various transmissions systems, router to router connections using military and commercial protocols such as BGP and ISIS, switch-to-switch trunking to include VLANS, and circuit configurations through multiplexers.

  • Experience with network services (BGP, OSPF, DHCP, DNS, TCP/IP, WAN, VPN, VLAN, VRF, etc.) and network appliances (e.g., routers, load balancers, domain name servers, firewalls).

  • Knowledge of configuring, activating, testing, and analyzing network systems.

  • Strong written and verbal communications, team building and collaboration skills.

  • An active Secret security clearance is required and ability to obtain and maintain a Top-Secret security clearance.

  • DoD-8570 IAT Level 2 baseline certification (Security+ CE or equivalent).

Preferred Qualifications:

  • Prior experience at DISA, or knowledge of DISA systems and processes

  • Prior experience with SharePoint data entry, DDOE, or SharePoint order processing.

  • Order services on behalf of the customer; input service requests into DISA Storefront (DSF)

  • Experience providing customer outreach on all orders to ensure that the POC, location, and interface information is correct.


Pay Range:

Pay Range $66,300.00 - $102,000.00 - $137,700.00

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.

About Leidos

Leidos is a Fortune 500® technology, engineering, and science solutions and services leader working to solve the world’s toughest challenges in the defense, intelligence, civil, and health markets. The company’s 47,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Virginia, Leidos reported annual revenues of approximately $14.4 billion for the fiscal year ended December 30, 2022.   For more information, visit

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 here.

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 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 [email protected].

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 Diversity

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.

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