Senior Systems Engineer

Leidos Inc; Oklahoma City (OK); On-site; USD 108,000 - 195,000; Full time

Job summary

Leidos Defense Sector is seeking a Senior Systems Engineer to support an Air Force Life Cycle Management Center program. You will help deploy and secure Linux/Windows servers, manage configurations, patches, and daily operations to ensure mission readiness.

You will work with cross-functional teams on-site, mentor junior engineers, and coordinate with government network owners. A TS/SCI clearance and DoD certifications are preferred; travel to customer sites will be required.

Qualifications

• US citizen with ability to obtain TS/SCI clearance.
• Bachelor's degree with 8+ years or Master's with 6+ years experience.
• DoD 8140 intermediate certification or DoD 8570 IAM Level II or higher.
• Experience with Active Directory/LDAP directories.
• Strong cloud experience (AWS and Azure).
• Linux and Windows server administration with networking.
• Strong problem-solving and analytical Skills.
• Effective communicator and team collaborator.

Responsibilities

• Travel to customer sites for hardware installation and configuration.
• Install, configure, and maintain Linux/Windows servers.
• Monitor performance, tune systems, and troubleshoot for high availability.
• Manage patches, upgrades, and security hardening per DoD policies.
• Support backups, disaster recovery, and data integrity.
• Assist in managing system access and security configurations.
• Collaborate with IT teams on deployments and integration.
• Maintain up-to-date system documentation.
• Participate in incident response and performance/security improvements.
• Mentor junior and mid-level engineers and administrators.

Skills

Active Directory

LDAP

Cloud (AWS/Azure)

Linux

Windows Server

Networking

PowerShell

Python

Troubleshooting

Education

Bachelor's degree

Master's degree

Tools

RHCSA

RHCE

CompTIA Linux+

MCSA

MCSE

ServiceNow

Jira Service Management

Job description

Description

The Defense Sector at Leidos is seeking an experienced Senior Systems Engineer to support an excitingAir Force Life Cycle Management Center program.This role involvessupportingthe 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 ofsystems and infrastructure. TheSenior Systems Engineerwill work closely with cross-functional teams to supporton-sitesystem 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 andparticipatein hardware installation and configuration.

• Install, configure, andmaintainphysical and virtual Linux andWindows servers.

• Oversee and perform system monitoring, performance tuning, and troubleshooting to ensure high availability and reliability.

• Identifyand resolvetechnical 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.

• Assistin managing system access, user accounts, and security configurations.

• Collaborate with other IT teams to support software deployments andintegration.

• Ensure system documentation ismaintainedand up to date.

• Participate in incident response and resolve issues related to system performance, security, and availability.

• Mentor and guide junior and mid-level engineersand administrators, fostering knowledge sharing and professional growth within the team.

• Coordinate with Government network owners to understand requirements for new locations.

Basic Qualifications:

• US Citizen with the ability to obtain and maintain a TS/SCI security clearance prior to your start date.

• Bachelor's degree with 8+ years of experience or a Master's Degree with 6+ 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 thatis able towork independently whilepossessingthe communication skills to work effectively withmultiple cross functionalteams and customers.

• Excellent interpersonal,verbaland 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.

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.

Pay Range:

Pay Range $107,900.00 - $195,050.00

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.

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.