Sr It Systems Admin Windows Vmware

Job details:

Role: Sr IT Systems Admin Win / VMWare

Work Location: On Site Miami / Hialeah, FL

Duration: 12 months

Start Window: Aug 2026

Senior IT Systems Administrator Windows & VMware

We are seeking a dynamic Senior IT Systems Administrator with expertise in Windows and VMware technologies who can excel in both project leadership and operational excellence.

This role requires a strategic thinker who can drive complex infrastructure projects while maintaining operational stability across multiple datacenters, demonstrating strong organizational skills and effective communication throughout all initiatives.

Key Responsibilities

Windows Infrastructure Management

Design, implement, and maintain Windows Server environments (2019, 2022, 2025)

Oversee patch management, security hardening, and Gold Standard version compliance initiatives

Implement automation solutions using PowerShell and other scripting technologies

Monitor system performance and optimize resource utilization

VMware Infrastructure Management

Administer VMware vSphere v8+ environments including VxRail, vCenter, ESXi, and vSAN

Perform virtual machine lifecycle management, capacity planning, and optimization

Execute cluster upgrades and maintenance activities with minimal downtime

Project Leadership & Management

Lead end-to-end infrastructure projects including Windows Server upgrades, VMware upgrades, and system migrations across multiple datacenters

Develop comprehensive project schedules, timelines, and resource allocation plans

Provide regular status updates to stakeholders and executive leadership

Coordinate cross-functional teams and manage project dependencies

Ensure projects are delivered on time, within scope, and budget

Team Leadership & Task Management

Assign and prioritize tasks across team members based on skills and project requirements

Mentor junior administrators and provide technical guidance

Foster collaboration and knowledge sharing within the team

Act as escalation point for complex Windows and VMware technical issues

Operational Excellence

Maintain 24/7 system availability through proactive monitoring and maintenance

Develop and maintain standard operating procedures and documentation

Participate in on-call rotation for after-hours critical system support

Ensure compliance with security policies, change management, and regulatory requirements

Drive continuous improvement initiatives and best practices adoption

Required Qualifications

Technical Skills

5+ years of hands-on experience with Windows Server administration

5+ years of VMware vSphere administration experience

Proficiency in PowerShell scripting and automation

Experience with backup and disaster recovery solutions

Knowledge of storage technologies (SAN, NAS, local storage)

Familiarity with monitoring tools and performance optimization

Demonstrated experience following formal change management practices and procedures

Leadership & Communication

Proven track record of leading technical projects from inception to completion

Excellent written and verbal communication skills

Experience in task delegation and team coordination

Ability to translate technical concepts for non-technical stakeholders

Organizational Skills

Exceptional project management and organizational abilities

Experience with project management methodologies (Agile, ITIL preferred)

Proficiency in project management tools (Jira, Change Gear)

Strong analytical and problem-solving capabilities

Detail-oriented with ability to manage multiple priorities simultaneously

Preferred Qualifications

Bachelor's degree Information Technology, Computer Science, or related field

Microsoft certifications (MCSA, MCSE) or equivalent experience

VMware certifications (VCP, VCAP) or equivalent experience

Experience in regulated industries with compliance requirements

Familiarity with NERC CIP regulations and associated compliance obligations

Leadership Competencies

Strategic Thinking: Ability to align technical initiatives with business objectives

Team Development: Proven ability to mentor and develop technical talent

Change Management: Experience leading organizational and technical change initiatives

Risk Management: Capability to identify, assess, and mitigate technical risks

Stakeholder Management: Strong relationship-building skills across all organizational levels