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Linux Systems Engineer

Open Systems Technologies Corporation
St Louis, MO Full Time
POSTED ON 1/12/2026
AVAILABLE BEFORE 1/20/2026
Open Systems Technologies Corporation is a leader in the government contracting marketplace, providing Enterprise Security and Cloud Computing solutions to support large organizations. Our capabilities include supplying federal government entities and private businesses with software development, scientific and engineering technical assistance, systems integration, and enterprise security. Since its founding in 1996, OST has been committed to delivering high-quality, best-in-class results that bring added value to our clients while investing in our employees’ futures by providing exciting projects to work on, and robust benefits to include technical training and certifications, relocation assistance and a 401K match with immediate vesting.

Open Systems Technologies Corporation is seeking an experienced System Engineer to lead the engineering work for an on-premise system with a mission operations team. The team is involved in the operation and sustainment of multiple operational cloud and on-premise deployed geospatial solutions. A successful candidate will have experience with the installation, configuration, administration, support, and maintenance of this on-premise system. The candidate will need to be a self-starter with excellent analytical and problem-solving skills, flexibility, good judgment, and the ability to coordinate multiple, concurrent tasks effectively.

Job Description:

The OST Spatial Solutions Division has an opening for an experienced System Administrator to work on cloud-based systems with a mission operations team. The team is involved in operations and sustainment of multiple operational cloud deployed geospatial solutions. A successful candidate will have experience with installation, configuration, administration, support and maintenance of cloud-based systems.

Responsibilities:

Primary responsibilities will involve taking a leadership role in system changes and improvements; working directly with government and contractor POCs to troubleshoot and responding to security reports; proactively monitor all operational systems and perform some of the more complex health checks; Deploy security patches and bug fixes to test and operational environments; update critical databases with new data; author and update operational and security documentation, including troubleshooting guides and SOPs.

Core Qualifications:

  • Top Secret Clearance (with ability to pass CI Poly upon hire)
  • DOD 8570 Certification (Security or equivalent or higher)
  • Typically requires BS degree and 8 - 12 years of prior relevant experience or master’s with 6 – 10 years of prior relevant experience.
  • Experience in AWS/Cloud technologies
  • Advanced Linux administration experience with RHEL 7 or higher
  • Must have experience with Microsoft Windows Server
  • Knowledge of Systems, Architectural, SW Development and SW Sustainment Practices
  • Windows administration
  • Proactive self-starter demonstrating a positive, willing attitude and excellent oral and written communication skills.
  • Organizational Skills: Can plan and prioritize work. Follow tasks to their logical conclusion and make sure that everything has been done to the right standard. Good attention to detail.
  • Communications: Ability to communicate clearly and efficiently with team members and clients, verbally and in writing. Able to present ideas in a variety of ways depending upon audience and context.

Preferred Qualifications:

  • Experience with ArcGIS/ESRI automation and deployments
  • Understanding of RDS and SQL Technology
  • AWS Solutions Architect, AWS Developer, Certification(s)
  • Experience with IC Cloud Architecture implementation methodologies
  • Team Collaboration tools and administration (Jira, Confluence, RocketChat)
  • In-depth knowledge of NiFi Apache (orchestration software), Python machine learning algorithms, and Machine Learning (ML) skills with experience in unstructured text parsing, and Tomcat.

Benefits

OST is an Equal Opportunity Employer and has been operating since 1996 providing support on various contracts with Government agencies. We offer a comprehensive benefits package that includes 3 weeks paid time off, 11 Federal Holidays, medical/dental coverage, STD, LTD, Life Insurance, AD&D, 401k with up to 4% match, and end-of-year profit sharing.

Salary.com Estimation for Linux Systems Engineer in St Louis, MO
$81,237 to $96,802
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