← Back to Jobs
Technology
Senior System Administrator
Lumen Solutions Group Inc.New York, NY🇺🇸United StatesPosted 20 Jul 2026
Quick Overview
Work Type
On Site
Level
Mid Senior
Job Description
Company Description
Lumen Solutions Group Inc. is a technology consulting Services company based in Florida. We provide a wide array of experienced business and IT professionals supporting clients from solution design to implementation and support. We specialize in professional IT consulting services, IT Staffing, Business/IT Strategy, Business Process Blueprints, Enterprise Architecture, and Enterprise Transformation.
Role: Senior System Administrator
Location: 2 Broadway New York, NY, 10004 (5 Days onsite)
Job Type: Contract
Job Summary:
We are looking for a Senior System Administrator with proven experience designing, implementing, and supporting enterprise-scale hybrid cloud and on-premises environments. The ideal candidate will have deep expertise in Microsoft Azure, Exchange, Active Directory, and automation scripting, along with experience supporting complex multi-forest, hybrid infrastructures in production environments.
Key Responsibilities
Required Qualifications
Lumen Solutions Group Inc. is a technology consulting Services company based in Florida. We provide a wide array of experienced business and IT professionals supporting clients from solution design to implementation and support. We specialize in professional IT consulting services, IT Staffing, Business/IT Strategy, Business Process Blueprints, Enterprise Architecture, and Enterprise Transformation.
Role: Senior System Administrator
Location: 2 Broadway New York, NY, 10004 (5 Days onsite)
Job Type: Contract
Job Summary:
We are looking for a Senior System Administrator with proven experience designing, implementing, and supporting enterprise-scale hybrid cloud and on-premises environments. The ideal candidate will have deep expertise in Microsoft Azure, Exchange, Active Directory, and automation scripting, along with experience supporting complex multi-forest, hybrid infrastructures in production environments.
Key Responsibilities
- Design, implement, and maintain hybrid Azure/on-premises infrastructure.
- Administer and support enterprise Exchange and Active Directory environments.
- Lead cloud migration and infrastructure modernization initiatives.
- Troubleshoot complex enterprise client-server environments.
- Develop automation scripts and optimize Azure resources.
- Support enterprise infrastructure projects and mentor junior technical staff.
Required Qualifications
- Microsoft Azure – 10+ years (Microsoft Certification preferred).
- Microsoft Exchange – Hybrid & Multi-Org enterprise environments.
- Microsoft Active Directory – Multi-Forest Hybrid administration.
- PowerShell / Unix Shell Scripting.
- Windows Server & Unix/Linux Administration.
- Microsoft Entra Connect, SCCM, ExpressRoute.
- DNS, PKI, Group Policy, SQL Server.
- Enterprise Infrastructure Design, Solution Architecture & Cloud Migrations.
Skills
SQL
SQL Server
Shell
Active Directory
Azure
DNS
PKI
PowerShell
Similar jobs
IT Administrator
Ledgent Technology · Santa Clarita, United States
3 hours agoSystem Administrator IV- IDCS(M) with Security Clearance
Semper Valens Solutions, Inc. · Scott AFB, United States
3 hours agoCloud Systems Administrator - Azure Government with Security Clearance
Applied Research Solutions · Beavercreek, United States
4 hours agoSystem Administrator 4 with Security Clearance
CyberCore Technologies · Alexandria, United States
4 hours ago$120k - $185k/yrLinux System Administrator 3 with Security Clearance
Power3 Solutions · Columbia, United States
4 hours ago$195k - $250k/yrJr. Systems Administrator with Security Clearance
Abile Group LLC · Suitland, United States
4 hours ago