IT Systems Administrator — Enterprise IT & Security

TetraMem INC; Wayne (CA); On-site; USD 110,000 - 140,000; Full time

Job summary

TetraMem is seeking an IT Systems Administrator to support our internal IT infrastructure, including user accounts, network services, security, and endpoint devices. The role collaborates with HR, Facilities, and Operations to enable onboarding, offboarding, and security initiatives.

The ideal candidate has 2–3 years’ experience in enterprise IT, with SSO, AD/Azure AD, Google Workspace, Microsoft 365, and endpoint management expertise.

Qualifications

• Bachelor's degree in Information Technology, Computer Science, Information Systems, Computer Engineering, or a related field.
• 2-3 years of experience supporting enterprise IT infrastructure and end-user systems.
• Experience administering SSO, Active Directory, Microsoft Entra ID (Azure AD), Google Workspace, or similar identity management platforms.
• Experience managing Wi‑Fi networks, VPNs, firewalls, switches, routers, and network troubleshooting.
• Experience supporting Windows, macOS, and Linux operating systems.
• Knowledge of Microsoft 365, Google Workspace, endpoint management, and IT asset management.
• Strong troubleshooting, analytical, and problem-solving skills.
• Excellent customer service, communication, and organizational skills.
• Ability to work independently and effectively in a fast-paced startup environment.

Responsibilities

• Administer and maintain the company's IT infrastructure, including laptops, desktops, printers, conference room systems, Wi‑Fi networks, and office technology.
• Manage employee onboarding and offboarding by provisioning user accounts, configuring devices, assigning system access, and ensuring timely account deactivation and asset recovery.
• Administer identity and access management solutions, including Single Sign-On (SSO), MFA, directory services, and user permissions.
• Configure, monitor, and troubleshoot network infrastructure, including Wi‑Fi access points, switches, VPN connectivity, and firewall security to ensure reliable and secure operations.
• Install, configure, and maintain Windows, macOS, and Linux workstations, Microsoft 365, Google Workspace, collaboration tools, and endpoint management solutions.
• Provide first- and second‑level technical support by diagnosing and resolving hardware, software, network, and security‑related issues in a timely manner.
• Maintain IT asset inventory, software licenses, system documentation, and standard operating procedures while ensuring compliance with company security policies.
• Coordinate with external IT vendors, internet service providers, cloud service providers, and managed service partners to support infrastructure maintenance and system upgrades.
• Monitor system performance, security alerts, backups, patch management, antivirus protection, and endpoint security to maintain a secure computing environment.
• Recommend and implement continuous improvements to IT infrastructure, cybersecurity, automation, and end‑user support to enhance operational efficiency and support the company's growth.

Skills

Troubleshooting

Analytical

Problem solving

Customer service

Communication

Organizational skills

Education

Bachelor's degree in IT/CS/IS

Tools

SSO administration

Active Directory

Azure AD

Google Workspace

Microsoft 365

Endpoint management

Wi‑Fi networks

VPNs

Firewalls

Switches/Routers

Job description

TetraMem is seeking an IT Systems Administrator to support our internal IT infrastructure, including user accounts, network services, security, and endpoint devices. The role collaborates with HR, Facilities, and Operations to enable onboarding, offboarding, and security initiatives.

The ideal candidate has 2–3 years’ experience in enterprise IT, with SSO, AD/Azure AD, Google Workspace, Microsoft 365, and endpoint management expertise.