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Senior System Administrator

Job in Fort Knox, Hardin County, Kentucky, 40122, USA
Listing for: Nakupuna Companies
Full Time position
Listed on 2026-01-02
Job specializations:
  • IT/Tech
    Systems Administrator, Cybersecurity
Job Description & How to Apply Below

Overview

Nakupuna Prime is seeking a Senior System Administrator to support the Army Human Resources Command during the contract transition phase between December 12-26, 2025. The role maintains, supports, and optimizes web-based systems, application servers, and related infrastructure, ensuring availability, performance, and security through system administration, troubleshooting, patching, and configuration management.

Responsibilities Web Server & Application Administration
  • Install, configure, and manage web servers and application servers such as Apache, NGINX, IIS, Tomcat, Web Logic, or Web Sphere.
  • Monitor and maintain web applications and backend services to ensure availability and performance.
  • Manage SSL/TLS certificates, domain configurations, and DNS entries related to web operations.
  • Support deployment of web-based applications and updates in collaboration with development teams.
System Administration
  • Install, configure, maintain, and patch Linux and/or Windows servers supporting web services.
  • Manage user accounts, permissions, and system security settings in accordance with organizational policies.
  • Monitor system performance, capacity, and resource usage, proactively addressing emerging issues.
  • Automate routine tasks using scripts or configuration management tools.
Troubleshooting & Support
  • Diagnose and resolve issues related to web servers, middleware, operating systems, and underlying infrastructure.
  • Provide Tier II/III support for incidents involving web services, content delivery, authentication, and integration points.
  • Work with networking and cybersecurity teams to address connectivity, security, or performance-related challenges.
Security & Compliance
  • Apply security patches, hardening standards, and vulnerability remediation for web services and servers.
  • Maintain compliance with security frameworks such as NIST, RMF, FISMA, or organizational policies.
  • Support log monitoring, audit preparation, and incident response activities.
Documentation & Continuous Improvement
  • Maintain accurate documentation for configurations, architectures, processes, and standard operating procedures.
  • Identify and recommend improvements in web infrastructure, automation, or monitoring.
  • Stay current with emerging technologies relevant to web hosting, cloud platforms, and systems administration.
Qualifications
  • Self‑motivated with strong attention to detail, oral and written communication skills.
  • Hands‑on experience: 3+ years.
  • Bachelor’s degree in Computer Science, Information Systems, Engineering, or related field; or equivalent experience.
  • Certifications may be required:
    Network+ CE, Security+ CE, CASP CE, etc.
  • Must be a U.S. Citizen and able to obtain and maintain an active Secret clearance.
  • Work Location:

    Fort Knox, Kentucky. Telework may be authorized once approved by the Government.
  • Physical requirements:

    ability to perform repetitive motions with hands, wrists, and fingers; respond to audible communications in emergencies; sit for prolonged periods at a desk and working on a computer.
Seniority Level
  • Mid‑Senior level
Employment Type
  • Full‑time
Job Function
  • Information Technology
  • Business Consulting and Services
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Position Requirements
10+ Years work experience
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