Systems Engineer

Leidos LLC; Oklahoma City (OK); On-site; USD 70,000 - 126,000; Full time

Job summary

Leidos is seeking an experienced Systems Engineer in Oklahoma City, OK to support an Air Force Life Cycle Management Center program. The role covers system configuration, monitoring, troubleshooting, and ensuring security and availability of IT infrastructure on-site.

Candidates must hold TS/SCI clearance and relevant DoD certifications. Responsibilities include deploying and maintaining Linux/Windows servers, performing system monitoring, applying patches, and coordinating with government

Qualifications

• US Citizenship with active TS/SCI clearance required.
• Bachelor's degree with 2+ years of experience or a Master’s Degree with 1+ years of experience.
• DoD 8140 intermediate certification or DoD 8570 IAM Level II certifications or higher.
• Experience with Active Directory, LDAP, or similar directory services.
• Strong experience with cloud platforms such as AWS and Azure.
• Experience administering Linux and Windows servers, networking fundamentals.
• Experience with troubleshooting, incident response, and security hardening.
• Ability to travel to support customer sites for hardware installation and configuration.

Responsibilities

• Travel to support customer sites and assist with hardware installation and configuration.
• Install, configure, and maintain Linux and Windows servers (physical and virtual).
• Monitor performance, troubleshoot, and ensure high availability of systems.
• Manage patches, upgrades, and security hardening per DoD policies.
• Support backups, disaster recovery, and data integrity.
• Coordinate with govt network owners to define requirements for new locations.
• Assist in software deployments and system integration tasks.
• Maintain up-to-date system documentation and incident records.
• Work with cross-functional teams to ensure operational readiness.

Skills

Active Directory

LDAP

Linux administration

Windows administration

Cloud platforms (AWS, Azure)

Networking basics

DoD 8140 / 8570 IAM II

Citizenship with TS/SCI clearance

Troubleshooting & incident response

Education

Bachelor's degree

Master's degree

Tools

RHCSA/RHCE

CompTIA Linux+

Job description

Systems Engineer Oklahoma City, OK TS/SCI

The Defense Sector at Leidos is seeking an experienced Systems Engineer to support an exciting Air Force Life Cycle Management Center program. This role involves supporting the delivery of comprehensive IT and support services to ensure mission success while adhering to DoD standards and regulations. This role includes system configuration, monitoring, troubleshooting, and ensuring the security and integrity of systems and infrastructure. The Systems Engineer will work closely with cross-functional teams to support on-site system deployments, software updates, and operational readiness, ensuring that all systems meet security, performance, and availability requirements.

Primary Responsibilities:

• Ability to travel to support customer sites and participate in hardware installation and configuration.
• Install, configure, and maintain physical and virtual Linux and Windows servers.
• Perform system monitoring, performance tuning, and troubleshooting to ensure high availability and reliability.
• Identify and resolve technical issues that arise within a complex system or network infrastructure.
• Manage system patches, upgrades, and security hardening in compliance with DoD policies.
• Provide support for system backups, disaster recovery, and data integrity.
• Assist in managing system access, user accounts, and security configurations.
• Collaborate with other IT teams to support software deployments and integration.
• Ensure system documentation is maintained and up to date.
• Participate in incident response and resolve issues related to system performance, security, and availability.
• Coordinate with Government network owners to understand requirements for new locations.

Basic Qualifications:

• US Citizen with at least an active Top Secret clearance with the ability to obtain and maintain a SCI prior to your start date.
• Bachelor’s degree with 2+ years of experience or a Master’s Degree with 1+ years of experience. Additional experience may be considered in lieu of a degree.
• DoD 8140 intermediate certification or DoD 8570 IAM Level II certifications or higher.
• Experience with Active Directory, LDAP, or similar directory services.
• Strong foundational experience with cloud platforms such as AWS and Azure.
• Strong experience administering complex environments with Linux and Windows operating systems, network administration, and networking protocols/functions (e.g., HTTP, HTTPS, SSL/TLS, SMTP, DNS).
• Strong problem-solving and analytical skills, with the ability to bring structure and clarity to ambiguous or unstructured information.
• Self-starter that is able to work independently while possessing the communication skills to work effectively with multiple cross functional teams and customers.
• Excellent interpersonal, verbal and written communication skills.

Preferred Qualifications:

• Active DoD TS/SCI security clearance and the ability to maintain that clearance during your employment.
• Linux certifications (e.g., RHCSA, RHCE, CompTIA Linux+).
• Windows Server certifications (e.g., MCSA, MCSE, CompTIA Server+).
• Familiarity with cloud-based account management and infrastructure (e.g., AWS, Azure).
• Experience in managing accounts across various platforms (e.g., Windows, Linux, macOS).
• Knowledge of automation and scripting (e.g., PowerShell, Python).
• Familiarity with ITSM tools like ServiceNow and Atlassian Jira Service Management.

DABAOPP1 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: October 1, 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 $69,550.00 - $125,725.00 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.

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 $17.2 billion for the fiscal year ended January 2, 2026. 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.

• 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 Leidos.com 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 [e-mail].

Commitment and 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.