Senior Cloud & Linux Systems Administrator (TS/SCI) – 24/7 Ops

RCT-Systems; Reston (VA); On-site; USD 179,000 - 199,000; Full time

Benefits offered by this job

Competitive benefits package

Immediate 401k vesting

Generous PTO and flexible schedules

$500.00 annual technology allowance

Job summary

RCT Systems in Reston, VA seeks a Senior/Expert Systems Administrator to design and maintain cloud-native AWS infrastructure, manage Linux servers, and automate operations in a mission-critical environment.

The role emphasizes security, patching, and on-call coverage, with leadership responsibilities across development, security, and QA teams to ensure 24/7/365 availability of key attribute services.

Qualifications

• TS/SCI with Polygraph clearance.
• 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).
• DevOps/CI/CD experience with tools such as GitHub, Jenkins, Puppet, Docker, Rundeck.
• AWS Console and CLI experience.
• Enterprise cloud architecture/design understanding.
• Agile experience and strong communication skills.

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.

Skills

Linux administration

Bash scripting

AWS/cloud experience

Infrastructure as code

Security accreditation

Elastic Stack

DevOps/CI/CD

GitHub

Jenkins

Puppet

Docker

Rundeck

AWS Console/CLI

Enterprise cloud architecture

Agile communication

Education

Bachelor's degree

Tools

GitHub

Jenkins

Puppet

Docker

Rundeck

AWS CLI

AWS Console

Job description

RCT Systems in Reston, VA seeks a Senior/Expert Systems Administrator to design and maintain cloud-native AWS infrastructure, manage Linux servers, and automate operations in a mission-critical environment.

The role emphasizes security, patching, and on-call coverage, with leadership responsibilities across development, security, and QA teams to ensure 24/7/365 availability of key attribute services.