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System Administrator
System AdministratorMarathon TS • Charleston, SC, United States
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System Administrator

System Administrator

Marathon TS • Charleston, SC, United States
1 day ago
Job type
  • Full-time
Job description

We are seeking a highly motivated and experienced System Administrator to support a dynamic team of .NET Web Application Developers working on enterprise-level solutions. The ideal candidate will have a strong background in managing and optimizing Windows-based systems, application servers, and Oracle databases, and will collaborate closely with developers to ensure a secure, high-performance, and reliable environment. You will serve as the technical backbone of the team—configuring and maintaining development, test, and production environments, resolving infrastructure-related issues, deploying application releases, and ensuring system compliance and security.

Responsibilities

  • Manage, configure, and maintain Windows Server environments (2019 or newer), including IIS, networking, security, and patching.
  • Support the deployment, configuration, and operational maintenance of .NET web applications, web services, and middleware components.
  • Collaborate closely with .NET Developers to troubleshoot and resolve system, database, and integration issues.
  • Manage SQL SERVER RDBMS environments (2019 or higher) in coordination with development and DBA teams.
  • Administer IIS web servers and application pools, and support deployments via Visual Studio or CI / CD pipelines.
  • Develop and maintain PowerShell scripts to automate routine tasks, deployments, and monitoring.
  • Support source control and development workflows using Team Foundation Server, Git, or Azure DevOps. Familiarity with JIRA is preferred.
  • Monitor application and infrastructure performance and logs to proactively identify and remediate issues. Familiarity with SPLUNK is preferred.
  • Ensure systems are secure and compliant with organizational and federal security standards.
  • Collaborate across teams using Agile, Waterfall, or hybrid SDLC methodologies.
  • Participate in documentation efforts for system configurations, processes, and disaster recovery.
  • Work closely with end-users for troubleshooting, training, and requirements gathering.
  • Occasional night, weekend, and on-call hours are required.

Education

  • Bachelor's degree in Computer Science, Information Technology, or a related field is preferred.
  • Required Skills

  • 5+ years of experience in Windows system administration supporting development teams.
  • Experience supporting .NET applications, especially those developed with Visual Studio (.NET Framework 4.5 or higher), C#, and ASP.NET.
  • Hands-on experience with IIS, SQL SERVER 2019+, and tools for monitoring, logging, and troubleshooting.
  • Proficiency in scripting with PowerShell.
  • Solid understanding of networking concepts, security best practices, and identity / access management (Active Directory, Group Policy).
  • Strong communication skills and a team-oriented mindset with the ability to work independently in a fast-paced environment.
  • Desired Skills

  • Experience with Azure cloud services and hybrid infrastructure.
  • Knowledge of DevOps tools such as Azure DevOps, Git, or Jenkins.
  • Familiarity with application architectures such as MVVM.
  • Experience with Control M.
  • Familiarity with front-end technologies (Razor, HTML5, CSS, JavaScript, AJAX, JSON).
  • Experience with compliance frameworks such as ISO-9001, DISA STIGs, NIST 800-53, or RMF.
  • Security Clearance

  • Top Secret
  • Create a job alert for this search

    System Administrator • Charleston, SC, United States

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