To our valued Leidos candidates:

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With that in mind, in an abundance of caution, we are canceling all face to face career events, such as job fairs and open house events. In the coming days and weeks, we will be hosting career events virtually, using our online chat tools so that we may continue our hiring practice safely and securely. You can find available virtual career events at

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Job #: R-00050881
Location: O'Fallon, IL
Category: Systems Administration
Schedule (FT/PT): Full Time
Travel Required: Yes, 10% of the time
Shift: Day
Potential for Telework: No
Clearance: Top Secret
Referral Eligibility: Eligible
Group: Defense

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Job Description:

Global Information Grid (GIG) Service Management-Operations (GSM-O), a Defense Group of Leidos has an opening for a Technical Team Lead for Operations Support System (OSS).  Our customer is the Defense Information Systems Agency (DISA) located at Scott AFB, IL and acts as the provider of GIG/Defense Information System Network (DISN) services to the department of Defense (DoD) and national security organizations.

The Technical Team Lead will be responsible to the OSS service delivery manager to lead and manage a team of system and application administrators supporting a global DISA Cyber Security environment.  The team of 15 to 20 employees is geographically dispersed across two locations to provide 24x7 support.  The team’s primary function is to effectively operate various vendor tools and servers to support the Cyber Security mission.  Responsibilities include technical planning, integration, and operation is a diverse environment encompassing Linux, and Windows operating systems.  The Technical Team Lead will manage multiple engineering and operations tasks simultaneously for a team of system and network administrators.  Partner teams are responsible for other support aspects such as IA.  

Primary Responsibilities:

  • Manage the operation and support of Cyber Security environment.

  • Support preparations of technical implementation plans to provide integrated solutions, including actions, milestones, timelines and critical paths required for complete solutions.

  • Coordinate subordinate employee recruitment, selection and training, performance assessment, work assignments, salary, and recognition/disciplinary actions 

  • Identification and management of issues, risks, dependencies

  • Collaborate with key partners in various technologies to de-conflict efforts  

  • Status reporting to the OSS SDM, task order manager, and customer 

  • Creating, documenting, and executing action plans

  • Work with the customer and external stakeholders to accomplish program goals in which we are dependent on them completing tasks

  • Manages aspects of multiple tasks simultaneously

  • Monitor, adjusts and reports on operations performance, budget and schedule

  • Some travel may be required (10-25%)


  • Bachelor's degree in a relevant IT engineering discipline with 8-10 years overall related experience

  • Experience supervising and recruiting staff

  • In-depth knowledge and practical experience implementing, administering, performing testing, and analyzing network management systems

  • In-depth experience in network management, problem management, and performance management

  • Working knowledge of IT networks, to include network appliances (e.g., routers, load balancers, domain name servers, firewalls) 

  • Technical depth in one of the primary operating systems with extensive knowledge of data center operations.  

  • Large complex system management experience to include integration of storage, databases, applications, authentication, audit, performance, and monitoring.  

  • Have earned one of the major vendor certifications such as Microsoft or Red Hat certification (MCSE, etc.), Network certifications such as Cisco Certifications (CCNA, etc.), or security certifications (CISSP, etc.)

  • Ability to make decisions and escalate to senior management when needed

  • Self-starter and have the ability to work independently with little to no supervision. 

  • Currently possess an active DoD Top Secret Security Clearance

  • Current DoD 8570 certification at IAT level II such as Security+ CE, higher certification preferred. 

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

  • Strong working knowledge of Microsoft Office products

Additional Desired Qualifications:

  • Master's degree in a relevant IT engineering discipline

  • ITIL certification


External Referral Bonus:


Potential for Telework:


Clearance Level Required:

Top Secret


Yes, 10% of the time

Scheduled Weekly Hours:




Requisition Category:


Job Family:

Systems Administration

Pay Range:


About Leidos

Leidos is a Fortune 500® information technology, engineering, and science solutions and services leader working to solve the world’s toughest challenges in the defense, intelligence, homeland security, civil, and health markets. The company’s 38,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020. 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

Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [email protected].

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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