Systems Administrator

American College of Radiology

Reston (VA)

On-site

USD 83,000 - 110,000

Full time

14 days+

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Benefits offered by this job

Defined contribution 403(b)

Paid time off

Insurance plans

Tuition reimbursement

Training opportunities

Job summary

American College of Radiology (ACR) is seeking a detail‑oriented Systems Administrator to manage on‑premises and cloud environments, ensuring reliable LAN/WAN operation and core directory services. The role includes patching, security, and disaster recovery planning, with on‑call support in rotation.

You will maintain AWS infrastructure, Microsoft 365, and Active Directory/Entra ID, while collaborating with IT leadership to deliver secure, scalable IT services to a 40k+ member organization.

Qualifications

Bachelor's degree in computer science, information technology, or related field, or equivalent hands-on experience.
Advanced experience with Microsoft Windows and Linux servers.
Experience administering AWS infrastructure and/or Microsoft 365 suites.
Solid understanding of TCP/IP, DNS, DHCP, and LAN/WAN.
Hands-on experience with Active Directory and Entra ID (Azure AD).
Experience with Cisco routing, switching, and security products.
Excellent communication and interpersonal skills.

Responsibilities

Deploy, configure, and maintain Windows and Linux servers to ensure uptime.
Maintain AWS components (EC2, S3, IAM) and hybrid cloud connectivity.
Administer Microsoft 365, including license management, Exchange Online, SharePoint, Teams.
Manage Active Directory, Entra ID, GPO, and user access controls.
Provide security patches and maintenance within scheduled windows.
Develop and maintain disaster recovery plans with local and cloud backups.
Collaborate with user community to solve technical problems and support daily ops.
Serve as escalation point for helpdesk for complex issues.
Establish change control processes and track project milestones.

Skills

Windows Server

Linux Server

AWS Cloud

Active Directory

Entra ID / Azure AD

Networking

Azure AD

Cloud Security

Education

Bachelor's degree in CS/IT or related field

AWS Practitioner

Microsoft Certified IT Professional

Tools

Cisco Routing

Cisco Switching

Microsoft 365

Job description

American College of Radiology (ACR) is a progressive membership organization representing nearly 40,000 medical specialists in radiological care. As a member of our team, you will join a world leader in patient-centered care advocacy, policy and clinical research, quality and safety. Our culture encourages innovation, diversity, integrity and leadership. A nonprofit 501(c)(3), ACR (the American College of Radiology) has over 500 purpose-driven employees in the Greater Washington, DC and Philadelphia region.

If you share our core values of: * Integrity * Visionary * Excellence * Leadership * Transparency * Member-Driven we need you on our team!

We are seeking a reliable and detail-oriented Systems Administrator to oversee, maintain, and secure our core IT infrastructure. In this role, you will manage both on-premises and Cloud environments, ensure server and network reliability across LAN/WAN systems, and administer essential directory services and operational applications to support daily business operations. The System Administrators are tasked with creating, following, maintaining, and enforcing IT policies and procedures, maintaining their skills to keep pace with changes in industry.

Essential Job Functions:

Infrastructure Maintenance: Deploy, configure, and maintain a variety of Operating Systems and Software applications including Windows Servers and Lunix, to ensure maximum uptime and optimal performance.
Cloud and Hybrid Management: Maintain basic AWS infrastructure components (EC2 instances, S3 storage, Security Groups, IAM permissions) and manage hybrid cloud connectivity.
SaaS Administration: Administer the Microsoft 365 environment, overseeing license, Exchange online, SharePoint, Teams, and basic security and compliance settings.
Identity & Access Management: Administer Active Directory, GPO, User accounts, permission, and access control.
Operational Application Support: Support, patch and troubleshoot business applications across diverse environments, Perform security patches and updates during the specific maintenance time window.
Maintain Core Network service including DNS, DHCP, TCP/IP configurations.
Develop and administers disaster recovery plans including local and cloud backup solutions.
Work with the user community to provide technical solutions to business problems.
Act as an escalation point for helpdesk technicians to resolve complex hardware, software, and connectivity issues.
Develops and maintains a change control process to manage project scope and complexity and to facilitate prioritization of development activities.
Tracks and reports projects progress by establishing well-defined milestones, reviewing estimates, and providing status reports to senior staff.
Works closely with technical lead to develop software that will help meet the functional requirements as well as usability standards.
Provide R&D related to emerging technologies.
Performs other duties as assigned.
Lends expertise to other job areas as required.

Minimum Experience and Expectations:

3+ years of related experience in systems administration covering Windows, Linux, and cloud or hybrid-cloud environments
Participate in On-call rotation for critical system support after hours
Participating in Monthly maintenance
Microsoft Professional level and/or AWS Practitioner level certification preferred

This position requires:

Bachelor's degree in computer science, Information Technology, or a related technical field, or equivalent hands-on experience
Advanced experience with Microsoft Windows and Linux servers
Basic knowledge and hands-on experience administering AWS infrastructure and/or Microsoft 365 suites
Solid understanding of TCP/IP, basic LAN/WAN concepts, and core protocols (DNS, DHCP)
Hands-on experience with Active Directory and Entra ID (Azure AD) identity and access management
Advanced networking and security analysis skills
Experience with Cisco routing, switching, and security products
Excellent communication (both written and verbal) and interpersonal skills
Experience with Cloud infrastructure on AWS Cloud and Microsoft 365

ACR is committed to a total rewards compensation philosophy that includes base salary in addition to our full suite of comprehensive benefits (https://www.acr.org/Jobs). ACR's goal is to pay competitively and equitably. It is typical for individuals to be hired in the entry to middle of the range for their role, and compensation decisions depend on each case's circumstances. A reasonable estimate of the annual compensation range for this position is $82,550 - $110,050.

ACR offers a rewarding employee experience: innovative culture, professional growth potential, competitive compensation and an exceptional benefits package, including a defined contribution pension plan, 403(b); generous paid time off package; insurance plans with the leading providers; flexible spending; tuition reimbursement; and training opportunities.

Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities

Qualifications

Experience

3 years: Staff Support: Provide reliable technical support and escalation paths for internal staff. (required)
1 years: Cloud & Systems Engineering: Administer and optimize AWS computing resources, Microsoft 365 product and Entra ID environments. (preferred)
5 years: Infrastructure Management: Support and maintain critical infrastructure components including Microsoft Window Servers, Linux servers, Active Directory, DNS, DHCP, GPO, Backups, Patching and monitoring. (required)

Licenses & Certifications