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Senior Systems Administrator

Company Overview: Diversified Technical Services, Inc. (DTSI) is a privately held, small business corporation headquartered in San Antonio, Texas.  DTSI has been delivering Information Technology and Telecommunication solutions and services for over 35 years to government agencies.


Senior Systems Administrator Job Description:  Maintains smooth operation of multi-user computer systems, including coordination with network administrators. Duties may include setting up administrator and service accounts, maintaining system documentation, tuning system performance, installing system wide software and allocate mass storage space. Interacts with users and evaluates vendor products. Makes recommendations to purchase hardware and software, coordinates installation and provides backup recovery. Develops and monitors policies and standards for allocation related to the use of computing resources.


Job Description:  Linux Systems Administrator: This position is dedicated to the support of the Defense Civilian Personnel Data System (DCPDS) Enterprise Human Resource application and related systems located in San Antonio, TX, supporting over 800,000+ DoD civilian personnel records and users. DCPDS is a highly available, mission critical, computing infrastructure in which the candidate must be willing to work on a team of multiple administrators supporting a 7X24 on call rotating schedule. Candidate must be capable of working in a fast paced environment requiring the ability to manage multiple tasks. The successful Candidate will perform system administrator duties such as configure and tune Linux operating environments, perform scheduled maintenance on the system to incorporate patches and/or enhancements, install COTS products, proprietary software and configure them to successfully run in multiple environments. Update and maintain COTS and custom system monitoring tools/scripts.

Maintains systems in accordance with established policies, procedures and SLAs. Implements and monitors Information Assurance procedures. Monitors and tunes the system to achieve optimum level of performance. Ensures server data integrity by evaluating, implementing and managing appropriate software and hardware solutions. Enforces standard operating procedures. Conducts routine hardware and software audits of servers for compliance with established standards, policies, configuration guidelines and procedures.


Basic Qualifications 

  • Working knowledge of Linux System Administration
  • Effective interpersonal skills and team oriented individual
  • Critical thinker who can work and engineer solutions with minimal supervision
  • Possess an active DOD Single Scope Background Investigation (SSBI) in order to obtain a DOD IT-1 designation in a Position of Trust
  • Possess Security+ CE certification or must acquire within 6 months of start


Desired skills 

  • Experience maintaining Linux operating systems that support and interface with Oracle databases and applications
  • Knowledge of Storage Area Network (SAN) configuration, management, and troubleshooting
  • Basic knowledge of working on systems in a controlled environment with configuration management oversight (software releases, implementing standard configurations, etc.)
  • Experience with an enterprise class monitoring and backup system
  • Working knowledge in Red Hat Enterprise Linux and/or Oracle Enterprise Linux
  • Familiarity with supporting a Disaster Recovery Hybrid Solution
  • Familiarity with supporting JBOSS
  • Familiarity with VMware


Education/Experience/Certification Requirements

  • Bachelor’s degree from an accredited college in a related discipline, or equivalent experience/combined education, with 5 years of professional experience; or 3 years of professional experience with a related Master’s degree. Considered career, or journey, level.
  • Possess Security+ CE certification (or higher) or must be able to acquire within 6 months of start


DoD Security Requirements: 

  • This position is only open to US Citizens.
  • Possess an active DOD Single Scope Background Investigation (SSBI) in order to obtain a DOD IT-1 designation in a Position of Trust


Authority/Accountability: The successful candidate will be a part of a small working group and will report directly to the project Task Leader.


Affirmative Action:  DTSI is an Equal Opportunity/Affirmative Action Employer. Applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status.


Disclosure: DTSI is an equal opportunity employer that uses E-Verify to confirm work authorization.  Applicants selected will be subject to a government security investigation and must meet eligibility requirements for a position of public trust

For more information about our company, please visit our website:



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