Systems Administrator - Senior II

Our client is supporting a U.S. Government customer on a large mission critical development and sustainment program to design, build, deliver, and operate a network operations environment, including introducing new cyber capabilities to address emerging threats. Client is seeking a Sr. Linux Systems Administrator to support the design, development, and deployment of advanced cybersecurity capabilities.

Job Responsibilities:
Provides ongoing systems administration, technical support, upgrades, and troubleshooting services.
Provide full coverage for Linux or Unix system administration functions to support the DevOps tool sets.
Install, configure, support, and maintain middleware (e.g., JBoss, Apache, Tomcat, Nginx, etc.) to support the DevOps tool sets.
Works closely with application and product teams in understanding their specific automation requirements and implement with them an optimal CICD pipeline.
Write unit tests and integration tests to validate infrastructure code.
Identify engineering defects in the existing code base and constantly improve the code quality.
Maintain configuration and support documentation.
Manage assigned project components to deliver services in accordance with established objectives.
Develop, through programming and scripting, automation to further expand and refine the DevOps tool sets.
Work closely with the software development teams in defining their DevOps CICD pipeline and processes and implement and configure the DevOps tools with them.
Incorporate AWS native cloud services and features to enhance the performance and resilience of the DevOps tools and infrastructure.
Contribute and collaborate to design, document, and publish DevOps and cloud standards, principles, guidelines and best practices.
Seek opportunities to increase the business value of the DevOps tool chain through research and investigation, application team input, automation options, POCs, etc.

Required Skills:
Must be a US Citizen
Must have an active Secret clearance and be able to obtain a TS/SCI clearance
Must be able to obtain DHS Suitability
6+ years of system administration in Linux, ideally Red Hat Enterprise Linux version 7 or 8 (RHEL7 / RHEL8) with the ability to engineer, install, administer and maintain complex system architectures
Experience with Linux OS installation, security hardening, and maintenance
Experience with administration and management of Linux servers to include installation, configuration, optimization, backup & recovery
Experience with Linux performance tuning & troubleshooting, identifying and resolving contention in CPU, memory, networking, disk I/O, etc
Experience with products such as Red Hat Satellite Server, Puppet, Chef and/or Ansible

Desired Skills:
Experience with Infrastructure as Code (IaC) using Ansible or other comparable products
Experience working in an agile development environment
Experience with software development using java, RESTful services
Comfortable with multilevel security systems, SELinux, and/or Cross Domain Solutions
Experience with data orchestration software such as Apache NiFi or StreamSets
Experience with distributed compute environments such as Hadoop
Experience with Amazon Web Services (AWS) platform capabilities, including good understanding of the Amazon Web Services (AWS) Well-Architected Framework, AWS certification
Experience working in AWS via the CLI and management console. Knowledge and experience configuring Virtual Private Clouds (VPCs)
Experience working in DevOps and/or DevSecOps environments
Familiarity with the following technologies in a cloud environment: ELK Stack (ElasticSearch, Logstash, Kibana), Ansible, Nessus, Zscaler, ClamAV, AIDE, Splunk, DNS, NAT, git, Docker, Kubernetes, OpenShift, Jenkins

Required Education:
Bachelor's degree in systems engineering, Computer Science, Information Systems or related technical field. Two years of related work experience may be substituted for each year of degree level education.

Desired Certifications:
DoD 8570.1 IAT Level II
Red Hat Certified System Administrator (RHCSA)