Senior IT Systems Engineer/Administrator

Job Title: Senior IT Systems Engineer

Location: On-Site Shadeland / Indianapolis Indiana

Employment Type: Full-Time

Clearance Level: Current Government Security Clearance Preferred

Citizenship: U.S. Citizenship is Required

About the Role

We are seeking a seasoned IT Systems Admin / Engineer with expertise in Windows-based environments, Active Directory, Networking, Virtualization, Desktop Support, and Cybersecurity. This role supports clients in highly regulated industries such as Federal Government, Financial Services, Utilities & Energy.

Key Responsibilities

· Design, implement, and maintain secure Windows-based infrastructure across client environments.

· Manage and optimize Active Directory, including Group Policy, DNS, DHCP, and domain trusts.

· Configure and troubleshoot networking components (firewalls, switches, routers, VPNs).

· Deploy and manage virtualization platforms.

· Provide support for desktop, server, and network issues for both customers and internal stakeholders

· Implement and monitor cybersecurity controls, including endpoint protection, SIEM, and vulnerability management.

· Collaborate with and support the Compliance Officer in preparation for and administration of both customer-led compliance audits and internal audit activity.

· Document system configurations, procedures, and incident reports.

· Experienced in M365 / O365 Administration

· Mentor junior engineers and contribute to continuous improvement initiatives.

Required Qualifications

· 7 - 10 years of experience in IT infrastructure roles supporting secure environments.

· Deep knowledge of Active Directory architecture and troubleshooting.

· Extensive experience in network design, configuration, and diagnostics.

· Proven expertise in virtualization technologies and resource optimization.

· Strong background in desktop and server support in enterprise settings.

· Solid understanding of cybersecurity principles and threat mitigation.

· Experience working in or supporting regulated industries (Federal, Financial, Utilities).

· Excellent documentation and communication skills.

· Must be able to pass a background investigation.

Preferred Qualifications

· Certifications such as CISSP, Security+, Network+, CCNA, VMware VCP.

· Familiarity with compliance frameworks such as FISMA, FedRAMP, HIPAA, NIST, Zero Trust, CMMC

· Active Security Clearance preferred

· Experience with Active Directory, Hyper-V, Citrix, Trend Micro, SIEM

Phoenix Data Corporation is an Equal Opportunity Employer and is committed to diversity in the workplace. We encourage all qualified individuals, including those with diverse backgrounds and those with disabilities, to apply. U.S Citizenship required.