DS Linux Administrator

Probity Inc.; Chantilly (VA); On-site; USD 150,000 - 190,000; Full time

Job summary

Probity Inc. is seeking an experienced Linux Systems Engineer to join the team in Chantilly, VA.

The role involves maintaining and improving the Sponsor’s Linux software and hardware environment, ensuring OS integration with hardware and applications, and keeping servers running securely. The successful candidate will plan, test, install, and maintain OS versions, harden servers, apply patches, and collaborate with application development and network teams.

Qualifications

• Minimum of 10 years configuring and maintaining Linux servers.
• Bachelor’s Degree in Computer Science, Information Systems, Engineering, or related discipline or 10 years of related experience substituted for education.
• Experience with complex, intertwined systems and data flows.
• Experience with Centrify, LDAP, and Active Directory.
• Experience applying security patches in a Linux environment.
• Strong shell scripting experience.
• Ability to manage a large, complex server environment.
• TS/SCI Polygraph clearance required.

Responsibilities

• Plan, test, install, integrate, and maintain Linux OS versions.
• Build and harden Linux servers and establish configuration baselines.
• Apply security patches in a timely manner and support patch management plans.
• Develop test plans and procedures.
• Replace server hardware components as needed.
• Test and integrate software and hardware.
• Manage OS lifecycles and environments.
• Design interfaces to external systems.
• Troubleshoot OS problems and collaborate with other teams.
• Provide technical support on integration requirements for the OS.
• Maintain documentation on OS configurations and responsibilities.

Skills

Shell scripting

Linux server management

Security patches

Centrify/LDAP/AD

Communication skills

Team collaboration

Security clearance

Education

Bachelor’s Degree in CS/IS/Engineering

10 years of related technical experience substitute for education

Tools

Ansible

Job description

PLEASE NOTE: This position requires an ACTIVE Top Secret/SCI Clearance with Polygraph. To be considered for this position, you MUST have an ACTIVE Clearance Level of Top Secret/SCI with Polygraph

Position Code: 04-SA0717-1

Summary

The successful candidate will maintain and improve, as part of the existing Linux team, the Sponsor’s Linux software and hardware environment. This includes responsibility for the operating system software and its successful integration with the hardware and applications software across the organization as well as maintaining the servers it runs on.

Duties, Tasks & Responsibilities

• Planning, testing, installing, integrating, and maintaining new and upgraded versions of the relevant operating systems
• Building and hardening Linux servers, and establishing configuration baselines
• Applying all appropriate security and firmware patches in a timely manner, and assisting in creating, maintaining, and adhering to the organization’s patch management plans
• Developing test plans and procedures
• Replacing server hardware components where necessary
• Testing and integrating software and hardware
• Managing operating system lifecycles
• Establishing, developing, testing, staging, and operating environments
• Designing interfaces to external systems
• Researching and resolving operating system problems efficiently and accurately, while adhering to organizational standards and practices
• Troubleshooting operating system problems, and collaborating with other teams (e.g. application development, network, etc.) to resolve problems across the organization
• Providing technical support to other teams (e.g. application development, etc.) on requirements for integration into the operating system
• Maintaining and updating documentation on the operating system configuration and all other areas of responsibility

Required Experience, Skills, & Technologies

• Minimum of 10 years configuring and maintaining Linux servers
• Bachelor’s Degree in Computer Science, Information Systems, Engineering, or other related discipline, OR 10 years of related technical experience may be substituted for education
• Experience working in an organization with complex, intertwined systems and data flows
• Experience creating, maintaining, and communicating complex information technology documentation
• Experience with domain account management, particularly via Centrify, LDAP, and Active Directory
• Experience applying security patches in a Linux environment
• Strong shell scripting experience
• Ability to manage a large, complex server environment
• Experience with the server environment, its hardware components and how/where they are used
• Understanding how to troubleshoot and replace server hardware if necessary
• Strong communication and collaboration skills to work effectively and proactively across a large organization of dispersed teams
• TS/SCI Polygraph

Desired Experience, Skills & Technologies

• Scripting experience with Ansible or similar technologies
• Physical Requirements:
  • The person in this position needs to occasionally move about inside the office to access file cabinets, office machinery, etc.
  • Add/remove hardware from in-rack applications
  • Use hands to operate a computer and other office productivity machinery, such as a calculator, copy machine and computer printer.