Information Technology System Administrator

AppleOne Employment Services; San Juan (PR); On-site; USD 90,000 - 120,000; Full time

Job summary

AppleOne Employment Services is seeking an IT Infrastructure & Systems Administrator to design, implement, and maintain the company’s technology infrastructure across servers, networks, cloud platforms, identity management, and security systems.

The role serves as Level 2/3 escalation for IT Support, managing hybrid on‑premise and cloud environments to ensure availability, security, and performance while aligning with NIST CSF 2.0 standards.

Qualifications

• Bachelor's degree in Computer Science, Information Technology, or related field.
• 3-4+ years of experience in systems administration, infrastructure, or networking.
• Advanced knowledge of Windows Server, Linux, networking, virtualization, cloud platforms, Azure Entra ID, and Intune.
• Experience with backup/DR, infrastructure monitoring, scripting, and automation.
• Knowledge of NIST CSF 2.0 and cybersecurity best practices.
• Relevant certifications such as CCNA, CompTIA, Microsoft Azure, AWS, or equivalent are preferred.
• Fluent in English and Spanish, both written and verbal.

Responsibilities

• Administer Windows Server and Linux physical and virtual environments.
• Manage corporate networks, firewalls, VPNs, Wi‑Fi, and cloud environments (AWS, Azure, and/or Google Cloud).
• Administer Azure Entra ID, SSO, MFA, Conditional Access, and Microsoft Intune/MDM.
• Design and maintain backup and disaster recovery (DR) strategies and conduct restoration testing.
• Manage patching, system updates, monitoring, capacity, and infrastructure security.
• Provide Level 2/3 technical escalation and troubleshoot complex infrastructure issues.
• Automate administrative tasks using PowerShell, Bash, Python, and generative AI tools.
• Maintain infrastructure documentation, runbooks, and procedures.
• Coordinate with technology vendors and support infrastructure migration and improvement projects.

Skills

System administration

Hybrid cloud environment management

Scripting & automation

Bilingual English/Spanish

Security best practices

Education

Bachelor's degree in Computer Science or related field

Tools

PowerShell

Bash

Python

Azure Entra ID

Intune/MDM

Cloud platforms (AWS/Azure/Google Cloud)

Job description

We are seeking an experienced IT Infrastructure & Systems Administrator to design, implement, and maintain the Company’s technology infrastructure, including servers, networks, cloud platforms, identity management, and security systems.

The ideal candidate will serve as a Level 2/3 technical escalation for the IT Support team, manage hybrid on-premise and cloud environments, and ensure system availability, security, and performance while supporting the Company’s NIST Cybersecurity Framework (CSF) 2.0 standards.

Key Responsibilities:

• Administer Windows Server and Linux physical and virtual environments.


• Manage corporate networks, firewalls, VPNs, Wi-Fi, and cloud environments (AWS, Azure, and/or Google Cloud).


• Administer Azure Entra ID, SSO, MFA, Conditional Access, and Microsoft Intune/MDM.


• Design and maintain backup and disaster recovery (DR) strategies and conduct restoration testing.


• Manage patching, system updates, monitoring, capacity, and infrastructure security.


• Provide Level 2/3 technical escalation and troubleshoot complex infrastructure issues.


• Automate administrative tasks using PowerShell, Bash, Python, and generative AI tools.


• Maintain infrastructure documentation, runbooks, and procedures.


• Coordinate with technology vendors and support infrastructure migration and improvement projects.

Requirements:

• Bachelor’s degree in Computer Science, Information Technology, or related field.


• 3-4+ years of experience in systems administration, infrastructure, or networking.


• Advanced knowledge of Windows Server, Linux, networking, virtualization, cloud platforms, Azure Entra ID, and Intune.


• Experience with backup/DR, infrastructure monitoring, scripting, and automation.


• Knowledge of NIST CSF 2.0 and cybersecurity best practices.


• Relevant certifications such as CCNA, CompTIA, Microsoft Azure, AWS, or equivalent are preferred.


• Fluent in English and Spanish, both written and verbal.