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System Administrator 

Category Security  

About STR: Systems & Technology Research (STR) is a mid-sized and rapidly growing company focused on providing innovative, technology-based solutions to defense, intelligence and national security problems. We have a position available for a system administrator with current Top-Secret clearance to support our Dayton, OH office.


  • Supporting senior administrators in implementing, deploying, and maintaining Linux (Red Hat, CentOS, Ubuntu) and Windows operating systems in traditional and virtualized environments across a variety of hardware solutions
  • Professionally support senior administrators, Information System Security Managers (ISSM), Information System Security Officers (ISSO), senior management, researchers and others team members supporting the customers’ requirements
  • Be part of the team managing requests in the ticketing system for Desktop Support Services.
  • Including laptops, scanners, copies, printers, phones and phone service
  • Maintain an accurate inventory of hardware and software licenses
  • Perform hands-on diagnostics at the desktop level, including installing and upgrading software, implementing file backups, and configuring systems and applications
  • Create and/or maintain end-user documentation for operating procedures
  • Configure and maintain NAS Storage, Networking, Firewall, and Directory Services such as MS Active Directory management and Group Policy administration
  • Perform performance monitoring, results analysis and enhancement, as well as process automation using PowerShell scripting and other available technologies
  • Provide daily lab support, systems maintenance, problem resolution, tracing and project support
  • Create and maintain installation and configuration Standard Operating Procedures (SOPs)
  • Maintain current knowledge of DoD security, technical guidelines and organizational policies
  • Provide support for production and development environments
  • Provide ad-hoc travel and after-hours support for our Information Systems’ maintenance, patching and remediation
Position Requirements

Required Qualifications:

  • Understand the basics of Linux (Red Hat, CentOS, Ubuntu) and Windows OS Administration
  • Experience with business and engineering applications (ex. Microsoft Office, MATLAB, Visual Studio, VMWare and other scientific/engineering applications)
  • Must hold active Top-Secret clearance
  • Have current or ability to attain Sensitive Compartmented Information (SCI) and have or ability to pass a Counter-Intelligence (CI) Polygraph
  • Occasional travel to Arlington, VA and/or Woburn, MA.
  • Excellent problem solving, time management and organizational skills; ability to prioritize work and meet customer demands and deadlines
  • Exceptional customer service, interpersonal skills, and desire to learn. Self-motivated with strong analytical, diagnostic, and troubleshooting skills

Desired Qualifications:

  • Microsoft and/or Linux technical certifications
  • Active Directory including Group Policy, LDAP backend, and Replication
  • Enterprise Virtualization Tools
  • Multi-Factor Authentication and Public Key Infrastructure
  • Web Server management
  • Effective utilization of Security Technical Implementation Guidelines (STIGS) and Security Content Automation Protocol (SCAP) Content and Tools
  • Host Based Security System (HBSS) implementation and maintenance
  • Current knowledge of DoD Ports, Protocols, and Services (PPS)

All applicants must be US Citizens

STR seeks to provide an outstanding work environment for its employees with excellent benefits and competitive compensation. Full-time employees enjoy 401(k), profit sharing, health and welfare benefits, subsidies for training and conference attendance to foster continued learning and development, and a casual yet technically challenging work environment.

STR is dedicated to fostering a diverse and inclusive workforce where all employees, regardless of race, ethnicity, gender, neurodiversity, or other personal characteristics, feel valued, included, and empowered to achieve their best. We recognize that each employee’s backgrounds, experiences, and perspectives are essential for providing our customers with innovative solutions to challenging national security problems. STR’s commitment to attracting, retaining, and engaging talented and diverse professionals is demonstrated by our participation, sponsorship, and support in local and national minority organizations.

Req Number SEC-19-00009  
EOE Statement STR provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.

This statement applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.  

This position is currently accepting applications.

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