Linux System Administrator

radiancetech; Beavercreek (OH); On-site; USD 90,000 - 130,000; Full time

Job summary

Radiance Technologies in Dayton, OH, supports NASIC and is seeking an experienced Red Hat Linux System Administrator to maintain IT resources in a classified environment. The role emphasizes security, uptime, and documentation, with occasional after-hours support as needed.

The candidate will install and sustain Linux servers, manage storage, test software updates, and optimize performance while following IA requirements and industry best practices.

Qualifications

• Active Top-Secret clearance with SCI eligibility.
• Experience with PostgreSQL database installations and backups.
• 5 years of relevant experience with a Bachelor's Degree in Computer Science/Information Technology or 10 years of relevant experience without a degree.
• Experience administering Red Hat Enterprise Linux (RHEL) 9/10 in a classified environment.
• Knowledge of security operations and information assurance.
• Security+ (minimum) or higher certification.
• Familiarity with load balancing, firewalls, and network tools.

Responsibilities

• Install and maintain Linux servers and network systems.
• Provide backup and recovery services; manage file systems and disk space.
• Test updates to enterprise system software for compatibility and minimal user impact.
• Develop and document technical processes and procedures as needed.
• Performance and network tuning.
• Develop best practices for processes and documentation/templates.

Skills

Top-Secret clearance

SCI eligibility

PostgreSQL administration

RHEL administration

Information security / IA

Security+ or higher

Scripting & automation

Load balancers / firewalls

Tomcat / Apache webservers

PKI infrastructure

Education

Bachelor's Degree in Computer Science/Information Technology

10 years of relevant experience without a degree

Tools

Tomcat

Apache

PKI infrastructure

Job description

Radiance Technologies is an employee-owned company with benefits that are unmatched by most companies in the Dayton OH area. Employee ownership, generous 401K, full health/dental/life/vision insurance benefits, interesting assignments, educational reimbursement, competitive salaries and a pleasant work environment combine to make Radiance Technologies a great place to work and succeed.

Radiance, supporting major Air Force programs in Dayton OH, is searching for an experienced Red Hat Linux System Administrator to support critical IT resources at the National Air and Space Intelligence Center (NASIC). The qualified candidate will provide maintenance, sustainment, and enhancement to the IT architecture in a classified environment; ensure compliance with applicable information assurance requirements; ensure 24/7 continuity of operations; and create and update relevant system documents. Work hours are normal business hours, however, occasional support during non-business hours will be required.

Successful candidates will have the following behavioral competencies:

• Great attitude with high degree of customer focus
• Flexible and adaptable to changing priorities
• Solid trouble-shooter, problem solver
• Quick learner; open to learning new things
• Reliable and committed to getting the job done (including after hours as occasionally required)
• Excellent coping skills and the ability to juggle multiple priorities
• Possesses the desire to "do things the right way", follows industry standard processes and guidelines.

Job Responsibilities

• Perform Installation and Maintenance of Linux Servers and network systems.
• Provide backup and recovery services; manage file systems and disk space;
• Install and Maintain Linux Servers and network systems.
• Test updates to enterprise system software to ensure compatibility and minimize user impact.
• Develop and document technical processes and procedures as needed.
• Performance and network tuning
• Develop best practices with respect to process and documentation/templates

Required Skills

• Active Top-Secret clearance with immediate SCI eligibility
• Experienced with PostgreSQL Database installations and backups
• 5 years of relevant experience with a Bachelor's Degree in Computer Science/Information Technology or 10 years of relevant experience without a degree.
• Experience administering Red Hat Enterprise Linux (RHEL) 9 / 10 servers in a classified environment
• Knowledge of security operations such as security safeguards administration, information assurance.
• Network security certification such as Security+ (minimum) or higher

Desired Qualifications

• Other Linux O/S knowledge also helpful (CentOS, Rocky Linux) Experience installing, configuring, and maintaining Tomcat, Apache, and other webserver installations using PKI infrastructure
• Experience with scripting languages and automation
• Familiarity with load balancing, firewalls and network tools

Radiance Technologies is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or protected veteran status.