Description
We are seeking a Systems Administrator to join our team in Columbia, MD. As a senior technical resource, you will be responsible for system configuration, automation, security hardening, vulnerability remediation, monitoring, troubleshooting, and continuous improvement of Linux-based infrastructure and operational practices.
Job Summary The ideal candidate brings deep hands-on Linux administration experience and is comfortable supporting mission-critical Development, Test, and Production environments using command-line tools, system logs, automation, and established change-management processes.
Primary Responsibilities
- Administer, configure, secure, monitor, and troubleshoot RHEL/Linux systems across Development, Test, and Production environments supporting mission-critical workloads.
- Lead troubleshooting and root-cause analysis across operating systems, applications, storage, authentication, performance, and network connectivity using Linux command-line tools, system logs, and monitoring platforms.
- Manage Linux system lifecycle activities including account and permission administration, patching, package management, software installation, service configuration, upgrades, and ongoing system maintenance.
- Implement and maintain Linux security controls, hardening standards, vulnerability remediation, configuration baselines, and compliance requirements.
- Develop and maintain automation and configuration-management solutions using Ansible, Bash, Python, or comparable technologies to improve consistency, reliability, and operational efficiency.
- Independently research and resolve complex technical issues while collaborating with SAs, DBAs, SWEs, SEs, testers, and other team members to develop sustainable solutions and promote knowledge sharing across the team.
- Develop and maintain technical documentation, SOPs, operational runbooks, system configurations, and change records, and participate in rotational on-call support for the mission environment.
Benefits
- Competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and more.
Requirements
- Bachelor’s degree in a technical discipline from an accredited college or university and 5 years of related experience.
- Extensive hands-on Linux systems administration experience, including RHEL or comparable enterprise Linux distributions, supporting complex production environments.
- Experience administering Linux systems including accounts and permissions, package management, patching, system services, storage, authentication, system configuration, and performance monitoring.
- Hands-on experience with automation or configuration management using Ansible or comparable technologies, along with Bash and/or Python scripting.
- Strong Linux troubleshooting skills and knowledge of networking fundamentals including DNS, TCP/IP, IP addressing, ports, routing, and firewalls.
- Experience with Linux security hardening, vulnerability remediation, configuration management, and formal change-control processes.
- Experience with AWS, including EC2, ECS (Elastic Container Service), EKS (Elastic Kubernetes Service), Systems Manager (SSM), CloudFormation, and associated monitoring and operational services.
- Active TS/SCI with polygraph security clearance.