Senior Windows System Administrator

Get AI-powered advice on this job and more exclusive features. We are seeking an experienced Windows System Administrator to ensure the stability, security, and performance of our IT infrastructure. The role involves managing Windows servers, Active Directory, virtualization, and storage environments, while supporting users and maintaining business continuity through robust backup and disaster recovery processes.

Responsibilities

Administer and maintain

Windows servers, Active Directory, DNS, DHCP, Group Policies, and user accounts .

Manage

system access rights, credentials, permissions, and storage allocations .

Perform installation, configuration, patching, and upgrades of

hardware, operating systems, and software applications .

Monitor and optimize

system performance, availability, and capacity , ensuring proactive issue resolution.

Implement and maintain

backup, disaster recovery, and failover procedures

to safeguard business data.

Manage and support

virtualization platforms

(VMware / Hyper-V) and associated infrastructure.

Develop and maintain

automation scripts

(e.g., PowerShell) to streamline administration tasks.

Ensure compliance with

security standards, patch management, and system hardening best practices .

Support

cloud and hybrid environments

(Azure Active Directory, Microsoft 365) where applicable.

Coordinate hardware upgrades and replacements and liaise with vendors and IT support teams.

Maintain accurate

documentation, procedures, and technical specifications

for system administration.

Provide guidance and knowledge transfer to IT staff and end users on new technologies and best practices.

Requirements

Bachelor’s degree in Computer Science, Information Technology, or related field (or equivalent practical experience).

Professional certifications preferred, such as : Microsoft Certified : Windows Server Hybrid Administrator Associate, Microsoft Certified Solutions Expert (MCSE), VMware Certified Professional (VCP), CompTIA Server+ / Security+.

Minimum 10 years of proven experience as a

Windows System Administrator

or in a similar role.

Hands-on experience managing

enterprise-level server and virtualization environments .

Demonstrated ability to

implement and maintain secure, resilient IT infrastructure .

Strong knowledge of

Windows Server (2012 / 2016 / 2019 / 2022)

administration.

Proficiency in

Active Directory, Group Policy, DNS, DHCP, and File / Print Services .

Experience with

virtualization technologies

(VMware, Hyper-V).

Knowledge of

backup solutions

and hands-on experience with

Symantec Netbackup

and

Veeam Backup

solutions.

Familiarity with

storage systems

(SAN / NAS / iSCSI).

Strong skills in

PowerShell scripting and automation .

Understanding of

system monitoring, performance tuning, and patch management .

Knowledge of

networking fundamentals

(TCP / IP, VPN, LAN / WAN).

Familiarity with

security practices , including system hardening, endpoint protection, and auditing.

Exposure to

cloud services

(Azure, Microsoft 365) is a plus.

Strong troubleshooting and analytical skills.

Excellent documentation and reporting abilities.

Effective communication skills to collaborate across IT and business teams.

Ability to train and support staff on system usage and new technologies.

Seniority level

Mid-Senior level

Employment type

Full-time

Job function

Information Technology

Industries

Financial Services, Capital Markets, and Banking

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