Linux System Administrator

$90,000 - $125,000/Yr

Ptfs - Rockville, MD

Full-time - Mid Level

Rockville, MD

Professional, Scientific, and Technical Services

About the position

The Linux System Administrator role is designed for an IT professional responsible for maintaining applications and databases in a secure environment, primarily focusing on Linux servers and some Windows servers. The position requires expertise in security procedures and the ability to adapt to evolving security policies. The successful candidate will also need strong customer service skills and experience in supporting systems within a Department of Defense (DoD) or Intelligence Community (IC) environment.

Responsibilities

• Lead POA&M for vulnerability mitigation and control
• Maintain accounts and requirements related to privileged access to the customer's systems
• Provide application administration for a multi-tiered web application across multiple domains on Windows and Linux platforms
• Assist the customer with technical questions and issue resolution
• Facilitate discussions between customers and HQ staff for timely issue resolution and upgrades
• Administer databases including PostgreSQL and MySQL, ensuring database health and uptime
• Perform upgrades, patching, and onsite testing of applications and databases
• Maintain staging server and lead the promotion to production process
• Coordinate all outages as required by the customer, ensuring notifications and documentation are filed
• Troubleshoot application issues, working with developers to diagnose and remediate
• Proactively monitor operating systems and network health for uptime and stability
• Write scripts to automate data migration and periodic tasks
• Generate reports and audits as required by the customer
• Maintain a repository of customer-specific reports and troubleshooting steps
• Document all reports and issues on the customer's system
• Perform data migration between domains periodically

Requirements

• Bachelor's degree in Computer Science or Engineering preferred
• Minimum of 5 years of experience administering systems and databases
• Active Top Secret Clearance with the ability to acquire SCI
• US Citizenship required due to Government contract requirements
• Extensive systems administration knowledge of RHEL7/8 platforms
• Fundamental knowledge of Windows server OS
• Good verbal, written, and customer communication skills
• Experience with scripting languages, ideally Perl and BASH
• Knowledge of computer networking fundamentals
• Experience administering RDBMSs, ideally MySQL and PostgreSQL

Nice-to-haves

• Knowledge of DoD/IC security and configuration management processes
• Experience configuring and administrating Apache Solr
• Experience administrating Integrated Library Systems
• Experience with metadata conversion scripting and processing
• Familiarity with LDAP protocol and record format of modern directory services

Benefits

• 15 days paid time off per year
• 11 paid holidays per year
• Medical, Dental & Vision
• 401(k) Plan with matching
• Tuition assistance
• Disability insurance
• Gym in the Rockville, MD office