Information Technology (IT) Systems Administrator (Systems Application Analyst 3) - 28492

About the role

HII-Mission Technologies in Mountain View, CA is seeking an experienced and highly capable Information Technology (IT) Systems Administrator for the Defense Innovation Unit (DIU).

Responsibilities

• End-User Support (Tier 1 & Tier 2)
• Troubleshoot and resolve complex hardware and software problems across Windows, macOS, iOS, and cloud SAAS environment
• Triage, prioritize, and track issues and document in helpdesk ticketing system (e.g., ServiceNow)
• Lead onboarding and out-processing of users for IT, including account provisioning, device configuration, access rights assignment, secure data handling procedures, and end user orientation
• Own the full lifecycle of end-user devices — laptops, desktops, mobile phones, and tablets — across Windows, macOS, iOS, and Android platforms
• Configure, enforce, and maintain MDM/UEM policies (e.g., NinjaOne, Kandji, Microsoft Intune) to ensure security compliance, patch currency, and organizational standards
• Administer and monitor LAN/WAN infrastructure including routers, managed switches, wireless access points, and next-generation firewalls
• Design, configure, and maintain network segmentation, VLANs, and access control policies
• Manage VPN and remote access solutions for hybrid and remote users
• Configure and maintain server infrastructure (physical and virtual)
• Serve as the primary administrator for cloud productivity platforms including Google Workspace and/or Microsoft 365, managing users, groups, licenses, permissions, and security configurations at an organizational level
• Administer cloud infrastructure and SaaS applications hosted in FedRAMP-authorized environments (e.g., Salesforce, ServiceNow)
• Own identity and access management (IAM) including SSO configuration, MFA enforcement, conditional access policies, and role-based access controls
• Monitor cloud platform health, capacity, and usage metrics; proactively implement improvements to reliability, performance, and cost efficiency
• Own and enforce IT security policy across endpoints, mobile devices, accounts, and network infrastructure
• Conduct and support security access reviews, system audits, and compliance documentation in alignment with applicable federal frameworks
• Ensure the security and integrity of organizational data across all platforms and transmission channels
• Actively participate in planning, implementation, and maintenance of IT projects, contributing technical expertise and operational perspective from conception through completion
• Contribute to the development, refinement, and enforcement of IT policies and procedures, ensuring they reflect operational realities and organizational risk tolerance
• Create and maintain comprehensive and accurate IT documentation — runbooks, standard operating procedures, network diagrams, system configurations, and asset inventories

Requirements

• 5 years relevant experience with Bachelors in related field; 3 years relevant experience with Masters in related field; 0 years experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 9 years relevant experience.
• Security + certification
• 3+ years of experience in technical support or a similar role
• WIN, macOS, Linux, iOS, and android
• Experience with helpdesk ticketing systems
• Experience in NIPR, SIPR, and JWICS
• Experience on Google Workspace, AWS, GCP, SIEM, ACAS, XDR, and Linux
• Experience with Automation scripts/shell - Bash, Powershell, zsh, and python
• Experience with Network configuration and maintenance- Cisco, Palo Alto Networks, Meraki, and Aruba
• Strong problem-solving and analytical skills
• Excellent communication and customer service skills
• Ability to work independently and in a team environment
• Good work ethic and is a go-getter
• Must be US Citizen
• Able to obtain a government security clearance

Qualifications

• Hands-on experience with FedRAMP-authorized cloud platforms and demonstrated understanding of federal IT security requirements and compliance frameworks
• Hands-on experience with zero-trust architecture principles and modern identity platforms (e.g., Okta, Azure AD/Entra ID, Lastwall)
• Experience configuring enterprise VTC/AV systems (Zoom Rooms, Cisco Webex, or equivalent)
• Experience contributing to or authoring IT policies, documentation, or formal IT project plans
• Familiarity with NIST SP 800-53, DISA STIGs, CMMC, or related federal security control frameworks

Skills

• CompTIA Security+
• Network+
• CySA+
• Microsoft 365 Certified (Administrator Expert or Security Administrator)
• Google Professional Cloud Administrator
• CISSP

Benefits

The listed salary range for this role is intended as a good faith estimate based on the role's location, expectations, and responsibilities. When extending an offer, HII's Mission Technologies division takes a variety of factors into consideration which include, but are not limited to, the role's function and a candidate's education or training, work experience, and key skills.