Fulltime Linux Windows System Administrator Jobs in Miami, FL

Description

The SR Network & Systems Administrator is responsible for maintaining the enterprise server systems and applications including monitoring and reporting for adherence to the organization’s security policies to ensure compliance. Manage help desk and monitor end user tickets with a focus on stakeholder satisfaction. Responsible for the ongoing support of all game day tasks and associated events at the facilities.

Location:

This is a full-time position based on-site at Hard Rock Stadium in Miami Gardens, FL.

Responsibilities:

Enterprise Infrastructure & Systems Administration

Administer, maintain, and optimize enterprise infrastructure, including DHCP, DNS, TCP/IP, Active Directory, Azure AD, Microsoft 365, virtualization, storage, and cloud environments.

Manage Active Directory, Group Policy, and Single Sign-On (SSO) platforms, including Okta.

Configure, deploy, administer, and support Windows Server, Linux, Windows, and macOS operating systems.

Maintain and administer Cisco networking infrastructure, including routing, switching, and wireless environments.

Manage Microsoft 365 services, including Exchange Online, Teams, OneDrive, and Azure Active Directory.

Design, implement, and support distributed network environments across multiple facilities.

Oversee VMware vSphere and other virtualization platforms to ensure optimal server performance and availability.

Administer enterprise storage solutions (SAN/NAS) and maintain backup and disaster recovery systems.

Manage JAMF Mobile Device Management (MDM) to ensure macOS devices remain compliant with organizational policies and security standards.

Administer NAC Solution

Security & Compliance

Monitor enterprise systems to ensure compliance with organizational cybersecurity standards and applicable regulatory requirements, including PCI-DSS and HIPAA, where applicable.

Ensure servers remain current with operating system patches, firmware updates, antivirus definitions, and security best practices.

Collaborate with cybersecurity teams to strengthen cloud security, identity management, and endpoint protection.

Participate in vulnerability remediation, disaster recovery planning, business continuity initiatives, and incident response efforts.

Operational Support

Monitor enterprise system health and performance to maximize uptime and reliability.

Execute system maintenance, upgrades, and change management procedures with minimal operational disruption.

Troubleshoot and resolve complex infrastructure, network, and server issues.

Provide infrastructure support for game day operations, concerts, Formula 1 events, tennis tournaments, and other stadium events.

Develop and maintain comprehensive technical documentation, including system configurations, procedures, change management records, and recovery plans.

Leadership & Service Delivery

Supervise and mentor the Systems Specialist and Help Desk Technician, ensuring high-quality technical support and professional development.

Oversee Help Desk operations, ensuring service requests are acknowledged within established service level expectations.

Collaborate with cross-functional departments and technology partners to deliver reliable and secure technology solutions.

Identify opportunities to improve infrastructure performance, automation, security, and operational efficiencies.

Skills

windows, vmware, network engineering, system administrator, active directory, routing, windows server, cisco switches, firewall

Top Skills Details

windows,vmware,network engineering,system administrator,active directory,routing,windows server,cisco switches,firewall

Additional Skills & Qualifications

Bachelor's degree in Information Technology, Computer Science, or a related field, or an equivalent combination of education and experience.

Minimum of five (5) years of progressively responsible experience in enterprise systems administration, networking, and infrastructure support.

Strong experience administering:

Microsoft Active Directory and Group Policy

Azure Active Directory / Microsoft Entra ID

Microsoft 365 (Exchange Online, Teams, OneDrive)

VMware vSphere or comparable virtualization platforms

Windows Server and Linux environments

Cisco networking technologies (routing, switching, wireless)

Enterprise storage (SAN/NAS)

Identity management and Single Sign-On (Okta preferred)

Experience with backup, disaster recovery, and business continuity solutions.

Working knowledge of Layer 2 and Layer 3 networking protocols.

Experience supporting both Windows and macOS environments.

Strong analytical, troubleshooting, organizational, and documentation skills.

Excellent written, verbal, and interpersonal communication skills.

This is a Permanent position based out of Miami Gardens, FL.

The pay range for this position is $100000.00 - $115000.00/yr.

Medical, dental, and vision insurance- have copies of this that we can provide candidates Life insurance (including voluntary coverage for spouses and children) Long term disability insurance Employee gym, subsidized lunch program, and discounts on a variety of products and services 401k, Paid time off (PTO), and company holidays

This is a fully onsite position in Miami Gardens,FL.

This position is anticipated to close on Aug 12, 2026.

We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

We’re a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We’re a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We’re strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We’re building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.