Systems Administrator - Senior II - ESA04 - Sr Linux Admin Solutions3 LLC is supporting a large Prime Contractor and their 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. Sols3 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) |