MAC Admin

Zensar Technologies; Redwood City (CA); On-site; USD 120,000 - 180,000; Full time

Job summary

Zensar Technologies in Redwood City, CA, seeks a Senior IT Support Engineer to lead endpoint operations and local network infrastructure. The role centers on macOS administration, enterprise MDM provisioning, and securing endpoints while maintaining high availability.

You will act as a Tier 2/3 escalation lead, manage WAN/LAN services, and coordinate with infrastructure teams to support office systems, Wi‑Fi, and VPN access. A strong background in security and Apple ecosystems is required.

Qualifications

• 5–7 years of hands-on IT support and systems engineering.
• macOS troubleshooting, scripting, and OS-level diagnostics.
• Experience with enterprise MDM suites and IdPs (Okta, Entra ID, Google Workspace).
• Strong TCP/IP, L2 networking, and Wi‑Fi/WLAN expertise.
• Certifications such as ACSP, Jamf Certified Admin, CCNA or Network+ are a plus.

Responsibilities

• Lead endpoint operations and local network infrastructure at the Redwood City office.
• Serve as the escalation lead for macOS endpoints (Tier 2/3).
• Provision, update, and secure endpoints via MDM solutions (Jamf Pro, Kandji, Mosyle).
• Enforce endpoint security controls and OS/compliance policies.
• Manage L2 networking and WLAN operations, including VLANs and 802.1X.
• Maintain core local services (DHCP, DNS, IPAM) and VPN access for users.
• Oversee perimeter security devices (Fortinet, Palo Alto, Meraki) and VPNs.

Skills

macOS

Shell scripting

OS diagnostics

Networking

IdP & MDM

Security policies

ACSP / Jamf / CCNA

Tools

Jamf Pro

Kandji

Mosyle

Fortinet

Palo Alto Networks

Meraki

Aruba

Ubiquiti

Job description

We’re a bunch of hardworking, fun-loving, people-oriented technology enthusiasts. We love what we do, and we’re passionate about helping our clients thrive in an increasingly complex digital world. Zensar is an organization focused on building relationships with our clients and with each other—and happiness is at the core of everything we do. In fact, we’re so into happiness that we’ve created a Global Happiness Council, and we send out a Happiness Survey to our employees each year. We’ve learned that employee happiness requires more than a competitive paycheck, and our employee value proposition—grow, own, achieve, learn (GOAL)—lays out the core opportunities we seek to foster for every employee. Teamwork and collaboration are critical to Zensar’s mission and success, and our teams work on a diverse and challenging mix of technologies across a broad industry spectrum. These industries include banking and financial services, high-tech and manufacturing, healthcare, insurance, retail, and consumer services. Our employees enjoy flexible work arrangements and a competitive benefits package, including medical, dental, vision, 401(k), among other benefits. If you are looking for a place to have an immediate impact, to grow and contribute, where we work hard, play hard, and support each other, consider joining team Zensar!

Zensar is looking for a MAC Admin EUC (MacBook & L2 Network Specialist) at Redwood City, CA

Job Description:

We are looking for a skilled Senior IT Support Engineer to lead endpoint operations and local network infrastructure at our Redwood City office. In this role, you will act as the primary technical escalation lead for complex macOS endpoints, enterprise Wi‑Fi/wired networks, and edge security systems. You will play a crucial role in maintaining high system availability, streamlining hardware deployments, and enforcing robust security across our technical environment.

Core Responsibilities

• Endpoint & macOS Administration (60%)
• Act as the lead escalation point (Tier 2/3) for advanced hardware, OS, and software troubleshooting across Apple MacBook Pro and Air fleets.
• Provision, update, and secure endpoints using enterprise MDM solutions (e.g., Jamf Pro, Kandji, Mosyle).
• Enforce endpoint security controls, including FileVault encryption, EDR software, and OS compliance policies.
• Lead zero‑touch provisioning via Apple Business Manager / Automated Device Enrollment and manage end‑to‑end device lifecycles.
• L2 Networking & WLAN Operations (30%)
• Manage and troubleshoot Layer 2 switching environments (VLANs, STP, LACP, trunking).
• Resolve enterprise Wi‑Fi issues, perform heat map audits, optimize RF performance, and manage 802.1X RADIUS authentication (WPA2/WPA3 Enterprise).
• Maintain core local services including DHCP, DNS, IPAM, subnets, and office routing.
• Partner with infrastructure teams to maintain access switches, wireless access points (Cisco Meraki, Aruba, Ubiquiti), and physical cabling.
• Perimeter & Security Management (10%)
• Handle routine administration for office edge firewalls (Fortinet, Palo Alto Networks, Meraki MX).
• Maintain basic firewall policy sets, NAT rules, port forwarding, and site‑to‑site VPN connections.
• Resolve user VPN access issues (IPsec, OpenVPN, WireGuard) and manage ACL configurations.

Required Experience & Skills

• Experience: 5–7 years of hands‑on IT support and systems engineering in fast‑growing technical environments.
• macOS Expertise: Shell scripting (Zsh/Bash), system configuration management (.plist), and deep OS‑level diagnostics.
• Networking & WLAN: Strong background in TCP/IP, L2 protocols, and 802.11a/b/g/n/ac/ax wireless standards.
• Identity & Fleet Management: Practical experience running enterprise MDM suites alongside IdPs (Okta, Microsoft Entra ID, Google Workspace).
• Desirable Certifications: Apple Certified Support Professional (ACSP), Jamf Certified Admin, CCNA, or Network+.

Zensar believes that diversity of backgrounds, thought, experience, and expertise fosters the robust exchange of ideas that enables the highest quality collaboration and work product. Zensar is an equal opportunity employer. All employment decisions shall be made without regard to age, race, creed, color, religion, sex, national origin, ancestry, disability status, veteran status, sexual orientation, gender identity or expression, genetic information, marital status, citizenship status or any other basis as protected by federal, state, or local law. Zensar is committed to providing veteran employment opportunities to our service men and women. Zensar is committed to providing equal employment opportunities for people with disabilities or religious observances, including reasonable accommodation when needed. Accommodation made to facilitate the recruiting process are not a guarantee of future or continued accommodation once hired.

All applicants must be legally authorized to work with Zensar. Visa sponsorship may be available for qualified applicants for certain positions.

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