Unix/Linux System Administrator
About The Position
RC4Vets LLC is seeking a Unix/Linux System Administrator to support an innovative program for a Veterans Affairs client. The role provides IT resources to Shared Services / Platform and Agile Scrum teams supporting an Appian product hosted and implemented on AWS GovCloud. The administrator provisions, installs, configures, operates, and maintains systems software and related infrastructure on VA Enterprise AWS GovCloud, contributes to technical research and development, and ensures systems and procedures adhere to organizational values and security best practices. The position includes administration of Linux and AWS environments, systems and network troubleshooting, security and shared-resource administration, performance monitoring and tuning, and support for large projects. The administrator performs work throughout project phases, from discovery and design through build, test, and deployment, and documents, monitors, and audits environments. The role supports a 24x7 production environment and may provide supplemental network and systems administration support to the IT team.
Requirements
- Bachelor's degree or four years of college from an accredited university in a related field, such as Computer Science, Systems Engineering, or Data Processing, with 8+ years of experience or commensurate experience.
- Eight years of experience working in a software development environment, including five years specializing in AWS GovCloud management, cybersecurity, database architecture, and system administration and architecture of large product implementations.
- Five or more years of Unix/Linux system administration experience deploying and managing servers, virtual machines, EC2 instances, Docker containers, and Kubernetes, with experience on AWS EC2 compute instances.
- Ability to script or automate repeatable tasks such as OS patching and backups.
- Understanding of AWS storage concepts, including S3, EBS, and incremental volume snapshots.
- Experience with network integration and cloud connectivity.
- Experience automating server configuration for security, including logging, key changes, and system hardening.
- Excellent problem-solving and communication skills.
- Experience supporting a 24x7 production environment.
- Eligibility to work for any employer in the United States.
- Ability to provide proof of residence in the United States for the last five years.
- Ability to obtain and maintain Public Trust clearance, requiring seven years of background investigation.
- No new employment authorization sponsorship is available for this position.
Nice To Haves
- RHCSA certification preferred.
- Familiarity with DevOps, Infrastructure as Code, and CI/CD processes and tools.
- Experience with Terraform, Ansible, and Jenkins.
- Two or more years of recent experience on a software development project in a federal government setting.
- Previous experience as a systems administrator for at least one large product implementation.
- Master's degree in Computer Science or another related field.
- Three or more years of experience with the Agile Framework.
Responsibilities
- Provide access to IT resources for Shared Services / Platform and Agile Scrum teams.
- Provision, install, configure, operate, and maintain systems software and related infrastructure on VA Enterprise AWS GovCloud.
- Perform Linux (RHEL) administration, including installation, configuration, performance monitoring, and problem resolution.
- Use command-line tools to manage files and directories, and create shell scripts.
- Operate running systems, including booting into different run levels, identifying processes, starting and stopping virtual machines, and controlling services.
- Configure local storage using partitions and logical volumes, and create and configure file systems and attributes such as permissions, encryption, access control lists, and network file systems.
- Deploy, configure, and maintain systems, including software installation, updates, and core services such as Apache, Tomcat, and databases including Postgres and Oracle.
- Manage users and groups, and administer security, including firewalls and SELinux configuration.
- Perform container management.
- Engineer and administer AWS EC2/VPC-based systems, applications, and networks, including installation, configuration, maintenance, patching, and backup/restore.
- Document, monitor, and audit environments.
- Maintain a secure user environment and shared resources in accordance with security best practices and resource-accessibility needs.
- Serve as a primary resource for server, network, and software issues and provide supplemental network and systems administration support to the IT team.
- Work with the IT team on large projects.
- Develop performance metrics and tune hardware and operating system performance.
- Perform system administration activities through project discovery, design, build, test, and deployment phases.
Benefits
- Medical, dental, and vision plan options.
- Life and disability insurance.
- Paid time off.
- 401(k) with employer match.
- Employee wellness program.
- Paid government holidays.
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What This Job Offers
Job Type
Full-time
Career Level
Senior
