System Administrator
Location: Charleston, SC, US
Job ID: ATR 17732
Job Description
System Administrator
Location: N. Charleston SC
Clearance:Top Secret
Job Summary
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 maintainWindows Serverenvironments (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.
· ManageSQL SERVERRDBMS 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, orAzureDevOps. 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.NETapplications, 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
· Work onsite in North Charleston, SC
Arena Technical Resources, LLC, (ATR) is an Equal Opportunity Employer (EOE) who will provide equal employment opportunity to employees and applicants for employment without regard to race, ethnicity, religion, color, sex, pregnancy, national origin, age, veteran status, ancestry, sexual orientation, gender identity or expression, marital status, family structure, genetic information, or mental or physical disability.
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