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System Administrator III
St. Louis, MO  |  Hybrid
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Applied on August 15, 2022
Job Id #57047-st.-louis Posted July 7, 2022

Job Description:
Deploy the release of new technologies as well as design, install, configure, maintain and perform system integration testing of PC/server operating systems, related utilities and hardware. Administer applications supporting all company divisions. The role will primarily include platform support for Atlassian tools but may also include other collaboration related technologies.

  • Actively and consistently supports all efforts to simplify and enhance the customer experience
  • Diagnose hardware and software problems and replaces defective components.
  • Perform data backups and disaster recovery operations.
  • Responsible for troubleshooting server problems as reported by users.
  • Research, evaluate and recommend software and hardware products.
  • Support Web access and electronic messaging services and maintains a secure systems environment.
  • Provide new hardware specifications to users based on application needs and anticipated growth; installs new servers and maintains the server infrastructure.
  • Define procedures for monitoring and evaluates, diagnoses and establishes work plans to resolve system issues.
  • Perform troubleshooting for complex hardware, software and network problems.
  • Works on multiple projects as a project team member.
  • Support media management through internal methods and procedures or through offsite storage and retrieval services.
  • Develop and promote standard operating procedures.
  • Monitor all systems and servers for uptime and other critical issues.
  • Provide outage support to include working directly with Atlassian, add-on vendors, and the Atlassian Tools Team as needed.
  • Review server logs and obtain any troubleshooting data to assist in problem resolution.
  • Install/Upgrade and test new software versions, MySQL, bug fixes, and patches.
  • Identify differing elements in configuration files between versions, and the associated implications.
  • Analyze system resource utilization reports to evaluate likely causes for observed performance degradation.
  • Attend all Atlassian Technical Account Manager (TAM) calls and provide updates, offer solutions, etc.
  • Attend all Change Advisory Board (CAB) calls and represent the Atlassian Team for all changes scheduled.
  • Manage service accounts and SSL certificates.
  • Identify and resolve Linux operating system issues.
  • Create and maintain shell scripts.
  • Install and configure Python 3.
  • Research/Coordinate network change tickets (ex. Firewall, DNS, F5 load balancers, and other routing changes).
  • Coordinate hardware changes (ex. new servers, adding memory/CPU/disk, etc.).
  • Cleanup logs in Jira and Confluence as needed.
  • Review/Confirm backups are in place and functional.
  • Analyze the growth rate for an instance and determine an appropriate scaling plan.
  • Determine the impacts of add-ons to the system infrastructure.

  • Ability to read, write, speak and understand English
  • Must be proficient in MS Office
  • Demonstrated communication skills and the ability to work well with all levels of business users in a professional manner
  • Increased knowledge and ability to make decisions around service ticket requests utilizing software such as Cherwell or Jira Support Desk
  • Intermediate level knowledge of system administration tasks and ability to perform more advanced research and recommend approaches for resolution

  • 3 years of Linux administration
  • 2 years of experience in Atlassian Tools administration (Jira, Confluence, Bitbucket, Crowd, TestRail)
  • Splunk monitoring and configurations
  • MySQL database experience
  • 2 years with Python 3 or similar scripting language
  • 2 years with NodeJs
  • 2 years with Splunk
  • ACP-500 Atlassian System Administrator Certification
  • Linux Foundation Certified System Administrator (LFCS) Certification
  • PCPP-32-1 or PCPP-32-2 - Certified Professional in Python Programming Certification

Required Education/Experience
  • BA/BS in Information Technology, Computer Science, or related field or equivalent work experience
  • 5- 10 years of IT experience.

Horizontal facilitates valuable and productive conversations between you and potential employers. We can assist you in growing your career by partnering you with employers that offer challenging assignments. For those that join the team, we offer competitive compensation and benefits including medical, dental, vision, and retirement. Check out all we have to offer and how you can become part of the Horizontal Talent Team. In compliance in compliance with state laws and regulations related to job posting requirements, the salary range for this role is $15.00 -$115.00 per hour (hourly rates in other locations could differ). This is not a guarantee of compensation, as final offer amount may vary based on factors including but not limited to experience and geographic location.

Horizontal is proud to be an Equal Opportunity and Affirmative Action Employer. We seek to provide employment opportunities to talented, qualified candidates regardless of race, color, sex/gender including gender identity and/or expression, national origin, religion, sexual orientation, disability, marital status, citizen status, veteran status, or any other protected classification under federal, state or local law.

In addition, Horizontal will provide reasonable accommodations for qualified individuals with disabilities. If you need to request a reasonable accommodation in order to complete the application or interview process, please contact

All applicants applying must be legally authorized to work in the country of employment.


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Horizontal is proud to be an Equal Employment Opportunity/Affirmative Action Employer providing a drug-free workplace.


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