Senior Linux Infrastructure Engineer (RHEL)

Responsibilities

Peraton is seeking a Senior Linux Infrastructure Systems Engineer in our Chantilly, VA office in support of our Department of Defense (DoD) Community customer as part of a highly talented, highly motivated, and high-performing team. As part of the infrastructure as a service team, you will support an exciting program which involves design, development, test, and deployment of an exciting and complex system in an Agile construct to contribute to mission success for a variety of stakeholders.  Join us and be part of the next generation of innovators as we blaze a trail forward for our profession and company.

What you'll do:

• Work closely with our DoD customer and stakeholders throughout system lifecycle in development, integration & test, deployment, and operations of a highly sophisticated ground system architecture
• Help build mission-critical, highly available, high-performance networked systems in a team-oriented environment. Build and deploy cloud instances and applications utilizing automation tools to streamline processes and improve efficiency
• Develop deploy and maintain Ansible playbooks for the purpose of automating rapid installation and system patching within multiple large-scale environments
• Develop systems engineering-related documentation to include operational concept, requirements, specifications, interface control documents, and validation & verification plans
• Conduct system planning and design for expansion of these resources to meet program needs
• Support ground system related trade studies

Qualifications

Required qualifications:

• This position requires the candidate to possess a minimum of Top-Secret clearance with the ability to obtain TS/SCI. The candidate must maintain the clearance.
• Associates degree and 10+ years of experience in a systems engineering related field; OR bachelor’s degree in computer science, computer engineering, or related field and 8+ years of experience in a systems engineering related field; or a master's degree in computer science, computer engineering, or related field and 6+ years of experience in a Systems Engineering related field. Four (4) years of relevant experience will be considered in lieu of a degree 
• Meet DoD 8140 foundational requirements for a System Developer with a proficiency of advanced.
• High proficiency with Linux and Windows-based operating systems to include a deep, core understanding of the operating systems’ concepts and functionality, experience building and configuring systems from scratch, experience troubleshooting functionality, and performing all functions leveraging automation tooling where possible
• High proficiency in installing, configuring, and deploying services from scratch to include configuration of security, certificate, and authentication settings following industry standard best practices
• High proficiency creating, modifying, and troubleshooting Ansible playbooks for system configuration and system sustainment activities (e.g. patching)
• High proficiency in the use of scripting languages such as Ansible, Bash, or Python for task automation such as package installation and configuration across an array of physical and/or virtual hosts
• Experience using Git to include collaboration, configuration management tracking, and code review facilitation
• Experience creating and updating process documentation to include infrastructure deployments, application installation, and system sustainment activities
• Direct experience with host/application integration into an Identity and Access Management (IDAM) system such as Active Directory, FreeIPA, or other similar systems, including deploying PKI infrastructure and troubleshooting PKI related issues
• Direct experience with RHEL 9.x and above to include building systems up from bare metal, performing software package installation and update, operating system configuration, and application troubleshooting
• Direct experience troubleshooting application and system level issues caused by PKI configuration, networking, firewalls, or other similar OS/infrastructure layers
• High proficiency in leveraging automation tools to perform security hardening to include patching for vulnerabilities, configuration changes, experience configuring and troubleshooting SELinux, and debugging/troubleshooting system and application functionality because of hardening changes
• Proficiency with multiple Red Hat tools, to include Red Hat OpenStack (RHOSP), Red Hat OpenShift (RHOCP), Red Hat OpenStack Services on OpenShift (RHOSO), and Red Hat Satellite for infrastructure deployment, configuration management, and system sustainment tasks

Desired Qualifications:

• Hands-on exper