Senior IT Administrator — Enterprise Migrations & Security

Roman Health Pharmacy LLC; Melbourne (FL); On-site; USD 90,000 - 130,000; Full time

Benefits offered by this job

Company stock options

Health, dental, vision, HSA, FSA, life

Retirement plans

Job summary

CesiumAstro in Melbourne, FL is seeking a Senior Information Technology Administrator to lead enterprise IT initiatives, delivering system migrations, integrations, and app rollouts that support a growing aerospace and defense organization.

You will own Active Directory/Azure AD, MDM (Intune), Microsoft 365, AWS configurations, and security practices, mentoring junior staff and producing SOPs and documentation.

Qualifications

• 5–8 years of IT support or systems administration experience.

Responsibilities

• Lead and execute system migration projects including planning, testing, cutover, and post‑migration support.
• Drive system integrations across enterprise platforms to improve interoperability.
• Coordinate and implement companywide software and hardware upgrades.
• Manage Active Directory cleanup efforts including account audits and policy reviews.
• Plan and execute new application rollouts including stakeholder coordination and testing.
• 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.

Skills

System migrations

Active Directory

Azure AD/Entra ID

M365 administration

AWS cloud configuration

IT security practices

Documentation

Mentoring

Education

B.S. in Information Technology/Computer Science

M.S. preferred

Tools

Intune

Microsoft 365 tools

Job description

CesiumAstro in Melbourne, FL is seeking a Senior Information Technology Administrator to lead enterprise IT initiatives, delivering system migrations, integrations, and app rollouts that support a growing aerospace and defense organization.

You will own Active Directory/Azure AD, MDM (Intune), Microsoft 365, AWS configurations, and security practices, mentoring junior staff and producing SOPs and documentation.