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Senior System Administrator

CXI StaffingNew York, NY🇺🇸United StatesPosted 20 Jul 2026

Quick Overview

Work Type
On Site
Level
Mid Senior

Job Description

THIS POSITION REQUIRES ONSITE WORK AND WEEKEND AVAILABILITY AS NEEDED.

MTA IT is seeking a Senior System Administrator role with extensive enterprise level experience in hybrid cloud/on premises environments.

Submit only candidates with verified 10+ years of Senior System Administrator experience in enterprise-level production environments. This candidate must be capable of designing, implementing, and supporting complex infrastructure solutions across Azure, Exchange, Active Directory, and multi forest hybrid architectures. Only highly qualified candidates with 10+ years of verified senior level experience will be considered.

Required Skills:
Azure
• Required
• 10+ years of experience
Microsoft certification preferred
Microsoft Exchange
• 10+ years of experience
• Advanced enterprise level production experience in hybrid and multi Org environments
Unix Shell Scripting or PowerShell Scripting
• 10+ years of experience
Microsoft Active Directory
• 10+ years of hands-on experience
• Must have experience administering multi forest hybrid AD environments

MTA requires candidates with demonstrated experience in:
• Solution architecture and procedural design
• Enterprise hybrid Microsoft Azure infrastructures
• Complex client server troubleshooting
• Windows and Unix operating system administration
• Microsoft System Management Server
• Multi-functional information architecture design
• Creating application architecture diagrams
• Migration tools and cloud configuration
• Providing guidance to junior staff and cross-functional technical teams
• Azure resource optimization, ExpressRoute, Microsoft SCCM
• Forefront Identity Manager, Entra Connect, SQL Server
• Strong scripting capability
• DNS, PKI, Group Policies
• Enterprise application system administration

The candidate will be responsible for:
• Investigating, analyzing, designing, developing, and evaluating enterprise IT system requirements
• Implementing and maintaining hybrid Azure/on-premises systems
• Designing and supporting hybrid Exchange environments
• Developing computerized systems, including studies, design, operations, and maintenance
• Establishing flexible information architectures supporting corporate needs
• Selecting, configuring, and using migration and cloud tools
• Troubleshooting complex client-server environments
• Supporting enterprise Active Directory, Azure, Windows Server, and Unix systems
• Leading or supporting large-scale infrastructure projects

 

Candidates must have 10+ years of senior-level experience designing and implementing solutions in an enterprise production environment, specifically involving multi forest and hybrid on premises/cloud infrastructures.

• PROVISIONING OR ACCOUNT CREATION EXPERIENCE ALONE IS NOT SUFFICIENT.

• TRAINING AND LAB EXPERIENCE

Skills

SQL
SQL Server
Shell
Active Directory
Azure
DNS
PKI
PowerShell

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