System Administrator (Linux & APIM Systems)

Na Ali'i Consulting & Sales, LLC.•Fort Knox, KY

2d•Onsite

About The Position

Nakupuna Companies is seeking a skilled System Administrator with strong experience in Linux environments and APIM systems to support the U.S. Army Human Resources Command (HRC). This role is essential to maintaining, securing, and optimizing mission‑critical systems that support Army-wide personnel operations. The ideal candidate will work closely with system administrators, developers, cybersecurity teams, and network engineers to ensure high availability, performance, and reliability across enterprise applications and infrastructure.

Requirements

The candidate must be self-motivated, pay close attention to detail, and have good oral and written communication skills.
Additional certifications may be required as prescribed by DoDD 8140 (e.g., Network+ CE, Security+ CE, CASP CE)
3+ years of hands-on system administration experience
Must be a U.S. Citizen.
Must be able to obtain and maintain an active Secret clearance.
An interim is required before receiving a formal job offer
Ability to perform repetitive motions with the hands, wrists, and fingers
Ability to engage in and follow audible communications in emergency situations
Ability to sit for prolonged periods at a desk and working on a computer

Nice To Haves

Experience in one or more of the following areas is beneficial:
Linux Administration (Primary Focus)
APIM Systems
VMware, Citrix, Nutanix
ESB, ELK Stack
Windows Server
Web Services & Middleware Platforms
Bachelor’s degree in any technical or managerial discipline is preferred

Responsibilities

Install, configure, secure, and maintain Linux servers supporting APIM and enterprise web services
Perform system patching, updates, configuration management, and baseline enforcement
Manage user accounts, permissions, and security controls in alignment with DoD and Army policies
Monitor system performance, capacity, and resource utilization, resolving issues proactively
Automate routine tasks using Bash, Python, or configuration management tools
Install, configure, and maintain web and application servers such as Apache, NGINX, Tomcat, WebLogic, WebSphere, or IIS
Support deployment and lifecycle management of web-based applications
Manage SSL/TLS certificates, DNS entries, and domain configurations
Ensure uptime, performance, and reliability of web applications and backend services
Diagnose and resolve issues involving Linux systems, middleware, authentication services, and integration points
Provide advanced support for incidents affecting web services, content delivery, and system connectivity
Collaborate with networking and cybersecurity teams to resolve performance, security, or access-related issues
Apply security hardening standards, vulnerability remediation, and DoD cybersecurity requirements
Maintain compliance with NIST, RMF, FISMA, and Army security frameworks
Support log monitoring, audit readiness, and incident response activities
Maintain accurate documentation for system configurations, architectures, SOPs, and operational processes
Recommend improvements in automation, monitoring, and system reliability
Stay current with emerging technologies relevant to Linux, APIM, and enterprise hosting environments