Senior Systems Administrator

Posted 11 Days Ago
Be an Early Applicant
Chantilly, VA
In-Office
112K-203K Annually
Senior level
Information Technology • Software
The Role
As a Senior Systems Administrator, you will provide technical leadership for AWS cloud services, ensuring operational continuity and supporting innovative software solutions while also fulfilling on-call responsibilities.
Summary Generated by Built In

Leidos is seeking a System Administrator for a technical development program supporting the Sponsor’s Attribute Services within the IDAM/ICAM space.As a System Administrator on this program, you will design, develop, implement, and maintain a Cloud-Native Service architecture that software development teams can leverage to use cloud capabilities. This role works directly with implementation teams to provide technical guidance and implementation priorities related to cloud implementation. This role requires supporting an on-call rotation to ensure mission critical services remain operational 24/7/365. Rotation is typically to be on-call 1 full calendar week every 2 months.

Primary Responsibilities

  • This role provides technical leadership and delivers an innovative product, service, or a combination of products and services that address a customer's specific requirements.
  • Support the development of enterprise software solutions within AWS.
  • Duties include developing innovative approaches and solutions, using non-quantitative tools and guidelines from past experience.
  • Security Patching
  • Support of Servers in an AWS environment
  • Provides execution guidance and practical engineering support to mission teams
  • Ensures the mission critical application remains operational 24/7
  • Supports a COTS service that provides attribute data via an LDAP interface to hundreds of various Sponsor systems

Required Qualifications

  • Active TS/SCI with Polygraph
  • BS degree and 12+ years of relevant experience. Additional experience in lieu of degree
  • Must be an expert in using Linux-based operating systems
  • Must have strong Bash skills
  • Must have experience with security accreditation process
  • Must have experience with the Cloud / Amazon Web Services
  • Must be able to support System Administration/Privileged Access duties including an on-call rotation for a week approximately every two months
  • Experience with Elastic tools (Elasticsearch, Logstash, Kibana, and Beats)
  • Experience in Cloud Technologies and infrastructure -as-code concepts
  • Understanding of aspects of architect and design enterprise cloud solutions and AWS
  • Excellent oral and written communications skills
  • Detail-oriented mindset
  • Experience interacting with cross functional project teams including Software Development, System Engineering/ Verification and Validation, Security, Compliance and Quality Assurance
  • Experience working in Agile environments
  • Experience working with DevOps CI/CD related technologies (Github, Jenkins, Puppet, Docker, Rundeck, etc.)
  • Experience with AWS Console, CLI, and manage services utilizing cloud services to build infrastructure as a code in an automated fashion
  • Ability to read and perform complex software and infrastructure deployment instructions

Desired Qualifications

  • Container-related certification
  • Certified Kubernetes Application Developer (CKAD) certification, demonstrating expertise in designing, building and running applications on Kubernetes
  • Experience working with / handling Highly Sensitive Data
  • Experience with LDAP technologies
  • Minimum of one AWS Certification from the AWS Associate level (AWS Certified Architect Associate, AWS Certified Developer Associate, or AWS Certified SysOps Administrator Associate)
  • 3+ years of C2S experience
  • Cloud formation
  • Managing complex Sponsor relationships and requirements gathering
  • Experience with IAM / IdAM / ICAM delivery systems, Authentication, Authorization, and/or Attributes
  • Experience with Tomcat

Come break things (in a good way). Then build them smarter.

We're the tech company everyone calls when things get weird. We don’t wear capes (they’re a safety hazard), but we do solve high-stakes problems with code, caffeine, and a healthy disregard for “how it’s always been done.”

Original Posting:October 8, 2025

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 $112,450.00 - $203,275.00

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.

Top Skills

AWS
Bash
Ci/Cd
CloudFormation
Docker
Elastic Tools
Git
Jenkins
Ldap
Linux
Puppet
Rundeck
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The Company
Alexandria, VA
27,104 Employees

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.

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