Leidos is seeking an experienced Linux Systems Engineer to provide support to a mission critical enterprise identity and access management system. A successful candidate will develop an understanding of the services offered to external organizations, provide lifecycle systems engineering support to development and operations on the program, and use a combination of technical and functional expertise to recommend solutions to satisfy customer requirements.
Responsibilities:
- Provide support to Tier II personnel in resolving customer-facing issues.
- Perform root cause analysis (RCA) and mitigation for operational issues. Communicate findings with interested parties and establish a feedback loop to development.
- Work as a subject matter expert (SME) to review user metrics, system health, overall performance checkouts, and implement proactive measures to support operational availability.
- Develop scripts to accomplish operational tasks, and utilize playbook-based automation processes, as necessary.
- Manage Commercial-Off-The-Shelf (COTS) and Government-Off-The-Shelf (GOTS) software products in several environments.
- Work with Enterprise Services to ensure compliance with security services and applications.
- Interface with customers and outside technical teams to diagnose and mitigate access issues.
- Utilize abstract visualization skills to understand system workflows and identify bottlenecks.
Requirements/Qualifications:
- Bachelor’s Degree in Computer Science or related discipline plus 4-6 years of professional experience as a Systems Administrator or similar technical role.
- Proactive self-starter demonstrating a positive, willing attitude and excellent oral and written communication skills.
- Two or more years of experience with Amazon Web Services (S3 Buckets, EC2, Reserved Instances, etc.)
- Experience troubleshooting network-related issues (Open Systems Interconnection (OSI) model levels 4-7)
- Familiar with System Engineering documentation creation (network diagrams, data flows, etc.)
- Experience working with Agile Team Collaboration tools such as (Jira, Confluence, BitBucket)
- Strong Linux background and familiarity with best practices of infrastructure management
- Active Top Secret clearance with SCI eligibility. Willingness to be approved for a Top Secret/SCI CI Poly after hire
Preferred Qualifications:
- Familiarity with Identity Federation, Single Sign-On, and authorization technologies (e.g. smart cards/Common Access Cards (CACs), SAML, OIDC, OAuth, Kerberos)
- Experience with Oracle COTS product experience (Oracle Access Manager, Oracle Unified Directory, Oracle Weblogic, etc.)
- Experience with Kubernetes
- Experience with scripting languages, such as bash and python
- Experience with LDAP (in lieu of Oracle Unified Directory experience)
- Experience with ElasticSearch, Logstash, Kibana (ELK tools
- Experience with AWS and other cloud-based architectures
- Familiar with cross domain architectures at various levels
- Experience with automated testing and monitoring
- Experience with Engineering Review Boards and Change 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.
Original Posting:October 14, 2026For 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.
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.
Skills Required
- Bachelor's degree in Computer Science or a related discipline
- 4-6 years of professional experience as a Systems Administrator or similar technical professional
- Strong communication skills and a proactive, self-starting attitude
- At least 2 years of experience with Amazon Web Services, including S3 and EC2
- Experience troubleshooting network issues across OSI model layers 4-7
- Experience creating systems engineering documentation, including network diagrams and data flows
- Experience with Agile collaboration tools such as Jira, Confluence, and Bitbucket
- Strong Linux background and familiarity with infrastructure management best practices
- Active Top Secret security clearance with SCI eligibility
- Willingness to obtain a Top Secret/SCI CI Poly after hire
- Experience with identity federation, single sign-on, and authorization technologies such as SAML, OIDC, OAuth, Kerberos, or CACs
- Experience with Oracle COTS products, including Oracle Access Manager, Oracle Unified Directory, or Oracle WebLogic
- Experience with Kubernetes
- Experience with Bash or Python scripting
- Experience with LDAP
- Experience with Elasticsearch, Logstash, and Kibana
- Experience with AWS and other cloud-based architectures
- Familiarity with cross-domain architectures
- Experience with automated testing and monitoring
- Experience with Engineering Review Boards and Change Management
Leidos Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Leidos and has not been reviewed or approved by Leidos.
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Healthcare Strength — Healthcare coverage is described as comprehensive, with multiple plan options, low office-visit copays in some plans, and access to mental health and wellness support tools. The availability of HSA/FSA options and employer contributions is positioned as a meaningful part of the total package.
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Retirement Support — Retirement benefits are framed as a strong component of total rewards, highlighted by a 401(k) match and immediate vesting in the standard package. The Employee Stock Purchase Plan is also presented as an additional long-term wealth-building feature.
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Wellbeing & Lifestyle Benefits — Wellbeing and lifestyle supports extend beyond core insurance, including wellness programs, fitness-related stipends, and assistance resources. Work flexibility and related perks are also included as part of the broader rewards experience.
Leidos Insights
What We Do
We Are Leidos For 50 years we have been tackling some of the biggest problems that face our nation and our world. OUR MISSION Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 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. Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®. Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos. Your most important work is ahead.
