Systems Administrator

Compensation: USD 90,000 - USD 100,000 - yearly

Founded in 1989, SOSi is among the largest private, founder‑owned technology and services integrators in the defense and government services industry. We deliver tailored solutions, tested leadership, and trusted results to enable national security missions worldwide.

SOSi is seeking a Systems Administrator tojoin our team in Joint Base Pearl Harbor Hickam, Honolulu, Hawaii
.As a Systems Administrator, you'll play a vital role in maintaining and supporting system operation, maintenance, and security, ensuring DoD compliance. Our team, based in Honolulu, Hawaii, creates, manages, and supports IT solutions for USINDOPACOM, its mission and its 5,000+ customers throughout the Pacific theater. Our team solves challenging technical problems that enable USINDOPACOM to realize critical and time sensitive C2 strategies.

As a Systems Administrator at SOSi, you will work within the Systems Operations team to provide essential support within the USINDOPACOM Area-of-Responsibility (AOR). Your role includes installing, updating and monitoring server and hosted applications including network-attached clients, user/service accounts and related component systems in a virtual infrastructure. You will provide Tier‑2 support to systems‑related issues and are responsible for securing, modifying and troubleshooting aforementioned IT systems and related components, in accordance with change control processes.

• Proactively monitors server environment, measures performance, and reports operational status.
• Troubleshoots, researches and resolves issues with server systems and related components.
• Responds to server‑infrastructure incidents and related core‑services.
• Inputs updates to incident and service request tickets accurately and in a timely manner. Investigates and documents root‑cause.
• Coordinates and communicates with internal and external teams, including users and partners.
• Secures solution components according to Department of Defense (DoD) guidelines.
• Develops and updates systems documentation (e.g., systems administration of new/current/legacy technologies) in addition to DoD accreditation requirements.
• Provides guidance/training to administrators, staff and end‑users on assigned systems.
• Provides status updates and briefings to management and Government customer(s), as required; completes activity reports in accordance with contract requirements.
• Ability to effectively research and collaborate with team members in troubleshooting, upgrading, or installing services.
• Skilled in leveraging team expertise to address complex technical issues, streamline installation processes, and implement upgrades that enhance service performance and reliability.
• Ensures compliance of custody and ownership of Government equipment and related components.
• Assists with life cycle of IT equipment: receiving, inventory, reporting and disposal.
• Participates in related solution technologies and special projects, as required.

• DoD 8570 IAT‑II compliant (e.g., Security+ CE, CASP+, CND, SSCP).
• Server Administration (Microsoft or Linux+) certification at hire.
• 6+ years of experience in systems administration, security operations or enterprise IT service center operations.
• Extended knowledge of modern operating systems (e.g., Windows, Linux) and related security configuration.
• Comprehensive knowledge of the principles, methods, and techniques used in IT systems administration, troubleshooting and support with emphasis on Microsoft Windows Server technologies including Active Directory (Domain Controllers, User/Group Accounts, Computer Objects, GPO’s), DNS, DHCP, File/Print, Exchange, SharePoint, SQL Server, WSUS.
• Experienced in implementing and supporting Virtual Desktop Infrastructure (VDI)/Virtual Environments and solutions (e.g., Citrix, VMware, Azure Cloud/Hyper‑V, Nutanix AHV).
• Knowledge of system security best practices and compliance standards including government Secure Technical Implementation Guidelines (STIGs).
• Familiarity with HCI, authentication protocols and C2 applications.
• Ability to work in a fast‑paced environment, adapt to changing…