82 jobs for "IT System Administrator"

Description

More About the Role:
Leidos is seeking a Site Reliability Engineer (SRE) Splunk Enterprise Administrator focused on Cyber support the largest IT services program for the Navy. Under the Service Management, Integration, and Transport (SMIT) program, the Leidos team delivers the core backbone of the Navy-Marine Corps Intranet, including cybersecurity services, network operations, service desk, and data transport. Leidos supports the Navy in unifying its shore-based networks and data management to improve capability and service while also saving significant dollars by focusing efforts under one enterprise network.

As part of the SRE organization you will develop and execute tests focused on system resilience, performance underload, and failure scenarios. You will also work in tandem with other Site Reliability Engineers (SREs) and development teams to create automated testing frameworks that simulate real-world conditions that validate system behavior under normal and stress conditions, ensuring our services are resilient and meet established service level objectives (SLOs) The SRE will support the operations and maintenance of the enterprise network. Your work will contribute to the development of robust and scalable services that operate reliably in production.

The Splunk Enterprise Administrator supports mission-critical cybersecurity operations by administering and maintaining distributed Splunk Enterprise platforms across hybrid cloud and on-premises environments. The role is responsible for daily platform operations, performance and ingestion monitoring, data onboarding support, incident troubleshooting, security compliance, documentation, and modernization activities in an Agile/DevOps operating culture.

Key Metrics of Success for the Team:
• Improved system reliability, as measured by adherence to Service Level Objectives (SLOs) and reduced Mean Time to Recovery (MTTR).
• Comprehensive and regularly updated automated test coverage for all critical systems and infrastructure components.
• Timely identification and resolution of performance bottlenecks and failure points.
• Integration of automated testing into the CI/CD pipeline, ensuring continuous reliability validation.
• Increased scalability and performance of systems under high load due to effective performance testing.

What You'll Get to Do:
• Administer, maintain, and perform daily Operations and Maintenance (O&M) for distributed Splunk Enterprise environments, including Search Heads, Indexers, Heavy Forwarders, Intermediate Forwarders, Universal Forwarders, and Deployment Servers across hybrid cloud and on-premises infrastructure.
• Monitor platform health, data ingestion, indexing throughput, search performance, and retention utilization; troubleshoot data onboarding, parsing, field extraction, forwarding, indexing, and ingestion issues.
• Support Splunk Cloud integrations and associated hybrid operational activities.
• Maintain Splunk applications, dashboards, alerts, saved searches, and knowledge objects.
• Support patching, vulnerability remediation, Security Technical Implementation Guide (STIG) compliance, and system hardening activities.
• Support platform upgrades, migrations, infrastructure modernization, technology refresh, and automation initiatives using scripting and configuration-management tools.
• Participate in incident response, outage troubleshooting, problem resolution, and root cause analysis.
• Maintain operational documentation, architecture diagrams, runbooks, and standard operating procedures (SOPs), and coordinate with cybersecurity, network, server, engineering, and customer teams during operational and modernization activities.
• Participate in after-hours support and an on-call rotation as required.

You'll Bring These Qualifications:

• Ability to work onsite at Norfolk Naval Station Monday through Friday day shift.
• Requires BS degree and 8-10 years of prior relevant experience or Master's with 7 years of prior relevant experience.
• U.S. Citizen and possess an active Secret Security Clearance.
• Minimum of DoD 8570.01 IAT Level II Certification required.

• Must have a Splunk Enterprise Certified Admin or Splunk Cloud Certified Admin Certification.

• Minimum three years of experience administering Splunk Enterprise v9 and supporting distributed Splunk architectures in hybrid cloud and on-premises production environments.

• Experience administering and troubleshooting Red Hat Enterprise Linux (RHEL) 8 and/or RHEL 9 servers.

• Experience with STIGs, the Risk Management Framework (RMF), vulnerability management, and compliance frameworks.

• Experience developing and maintaining operational dashboards, visualizations, and executive reporting in Splunk Enterprise and Splunk Cloud.
• Strong working knowledge of Splunk data ingestion pipelines, indexing, parsing, forwarding, search optimization, and retention management.
• Experience using at least one scripting or automation language: Python, Bash, or PowerShell.
• Strong troubleshooting, analytical, communication, and documentation skills, with the ability to work independently, manage competing priorities, collaborate across technical teams, and maintain a customer-focused approach in a high-tempo production environment.

• Strong communication, analytical, and problem-solving skills, ability to work in a team environment.

These Qualifications Would be Nice to Have:
• Experience with automated script design, coding, debugging, and maintenance skills (using bash, python, etc.) preferred.

• Experience working in classified government or Department of Defense environments.
• Familiarity with RHEL 10

NGEN

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 27, 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 $107,900.00 - $195,050.00

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 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.

About Leidos

https://www.leidos.com/

Size: 10,000+ employees
Industry: Technology: B2B Tech Services

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