Senior IT Administrator, CesiumAstro

• 5–8 years of IT support or systems administration experience required (3–6 years with a relevant M.S.)
• B.S. in Information Technology, Computer Science, or related field preferred; equivalent experience considered
• Complete understanding and wide application of IT support and systems administration principles
• Advanced troubleshooting skills across hardware, software, networking, and cloud-connected environments
• Working knowledge of IT security practices including endpoint compliance, access management, and MFA
• Ability to develop technical documentation and SOPs to support knowledge sharing and process consistency
• Proficiency in Microsoft 365 (Outlook, Teams, SharePoint, OneDrive)
• Experience with AWS cloud configuration and support
• Expertise in Active Directory Azure AD/Entra ID, and VPN and remote access tools.
• Knowledge of IT ticketing systems
• Strong oral and written communication skills
• Solid troubleshooting and problem-solving skills
• Strong customer service orientation

Desirable

• We are looking to add a Senior Information Technology (IT) Administrator to our team. This role is a project-focused role responsible for planning and executing enterprise IT initiatives at CesiumAstro
• In this position, you will own the delivery of system migrations, integrations, companywide upgrades, and new application rollouts that support a growing aerospace and defense organization
• The Senior IT Administrator operates with general supervision and exercises independent judgment in diagnosing, prioritizing, and resolving a wide range of technical issues affecting end users and enterprise systems
• Lead and execute system migration projects including planning, testing, cutover, and post-migration support
• Drive system integrations across enterprise platforms to improve interoperability and reduce manual workflows
• Coordinate and implement companywide software and hardware upgrades with minimal disruption to operations
• Manage Active Directory cleanup efforts including account audits, group policy reviews, and directory hygiene
• Plan and execute new application rollouts including stakeholder coordination, testing, and end user enablement
• Administer and maintain user accounts, groups, and permissions in Active Directory and/or Azure AD/Entra ID
• Manage endpoint configuration, imaging, patching, and software deployment via MDM platforms (e.g., Intune)
• Monitor system health and assist in administration of servers, cloud environments, network infrastructure, M365 advanced skills, including Purview, Security, and Entra ID
• Support IT security practices including access reviews, MFA enforcement, and endpoint compliance
• Mentor junior helpdesk staff and provide guidance on escalated technical issues
• Develop and maintain technical documentation including SOPs, knowledge base articles, and troubleshooting guides
• Identify recurring issues, contribute to root-cause analysis, and implement process improvements
• Participate in IT projects including system migrations, office expansions, and tool evaluations