Systems Administrator; Expert
Job in
Reston, Fairfax County, Virginia, 22090, USA
Listed on 2026-09-08
Listing for:
RCT Systems
Full Time
position Listed on 2026-09-08
Job specializations:
-
IT/Tech
AWS, Unix/Linux, Cloud Computing: Infrastructure & Operations, Systems Administrator
Job Description & How to Apply Below
Senior/Expert System Administrator supporting a technical development program in the IDAM/ICAM and Attribute Services space. The role focuses heavily on AWS/cloud-native infrastructure, Linux administration, automation, security, and mission-critical operations.
Key Responsibilities- Design, implement, and maintain cloud-native AWS infrastructure
- Provide technical leadership and engineering guidance to development/mission teams
- Administer and support Linux servers in AWS
- Perform security patching and privileged-access/system administration
- Maintain a mission-critical service operating 24/7/365
- Support an LDAP-based COTS service providing attribute data to hundreds of systems
- Participate in an on-call rotation approximately 1 week every 2 months
- Work across development, systems engineering, security, compliance, and QA teams
- TS/SCI with Polygraph
- Bachelor's degree + 11–15 years relevant experience
- Expert-level Linux administration
- Strong Bash scripting
- AWS/cloud experience and infrastructure-as-code knowledge
- Security accreditation experience
- Experience with Elastic Stack (Elasticsearch, Logstash, Kibana, Beats)
- Dev Ops/CI/CD experience with tools such as Git Hub, Jenkins, Puppet, Docker, Rundeck
- AWS Console and CLI experience
- Enterprise cloud architecture/design understanding
- Agile experience and strong communication skills
- AWS Associate certification
- CKAD/Kubernetes or container certification
- LDAP experience
- Cloud Formation
- IAM/IDAM/ICAM, authentication, authorization, or attribute services
- Highly sensitive data experience
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