Senior IT Systems Administrator – Windows & VMware

Five Rivers IT, Inc.

  • Miami / Hialeah, FL
  • 18 days ago

    Highlights

    Change Management: Experience leading organizational and technical change initiativesRisk Management: Capability to identify, assess, and mitigate technical risksStakeholder Management: Strong relationship-building skills across all organizational levels Powered by JazzHR. 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.

    Numbers & Facts

    LocationMiami / Hialeah, FL

    Description

    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 technologiesMonitor system performance and optimize resource utilization

      VMware Infrastructure Management

    •             Administer VMware vSphere v8+ environments including VxRail, vCenter, ESXi, and vSANPerform 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 plansProvide regular status updates to stakeholders and executive leadership
    •             Coordinate cross-functional teams and manage project dependenciesEnsure 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 requirementsMentor junior administrators and provide technical guidance
    •             Foster collaboration and knowledge sharing within the teamAct as escalation point for complex Windows and VMware technical issues

      Operational Excellence

    •             Maintain 24/7 system availability through proactive monitoring and maintenanceDevelop and maintain standard operating procedures and documentation
    •             Participate in on-call rotation for after-hours critical system supportEnsure 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 experienceProficiency in PowerShell scripting and automation
    •             Experience with backup and disaster recovery solutionsKnowledge of storage technologies (SAN, NAS, local storage)
    •             Familiarity with monitoring tools and performance optimizationDemonstrated experience following formal change management practices and procedures

      Leadership & Communication

    •             Proven track record of leading technical projects from inception to completionExcellent written and verbal communication skills
    •             Experience in task delegation and team coordinationAbility to translate technical concepts for non-technical stakeholders

      Organizational Skills

    •             Exceptional project management and organizational abilitiesExperience 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 experienceVMware certifications (VCP, VCAP) or equivalent experience
    •             Experience in regulated industries with compliance requirementsFamiliarity with NERC CIP regulations and associated compliance obligations

      Leadership Competencies

    •             Strategic Thinking: Ability to align technical initiatives with business objectivesTeam Development: Proven ability to mentor and develop technical talent
    •             Change Management: Experience leading organizational and technical change initiativesRisk Management: Capability to identify, assess, and mitigate technical risksStakeholder Management: Strong relationship-building skills across all organizational levels

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