Hybrid IT Infrastructure Engineer – Security & Networking

Spheros Environmental; Petaluma (CA); Hybrid; USD 120,000 - 145,000; Full time

Benefits offered by this job

Hybrid work model

Competitive compensation with 401(k)

Professional growth

Inclusive culture

Cross-location client services

Job summary

Spheros Environmental is seeking an experienced Infrastructure Engineer to resolve advanced ticket escalations, support networking across locations, and manage endpoint and email security stacks. The role emphasizes a customer-service approach to every staff interaction.

Key technologies include Entra, Intune, Veeam, VMware vCenter, Windows Server, Azure Files, Cloudflare One, Unifi and Cisco switches. Hybrid work in Denver or Petaluma is available.

Qualifications

• Deliver excellent support with a customer-first approach to ticket ownership, communication, and follow-through.
• Administer SentinelOne and KnowBe4 Defend.
• Support Cisco switching in datacenter and Unifi stack in small offices.
• Perform incident response, threat hunting and remediation, and phishing investigations.
• Improve Help Desk efficiency by documenting procedures, writing KB guides, and identifying automation opportunities.
• Support general IT infrastructure both on-prem and in Azure.

Responsibilities

• Handle Tier 2/Tier 3 issues involving Windows endpoints, identity, file access, on-prem servers, and Azure services.
• Support networking across locations, including datacenter and small offices nationwide.
• Manage SentinelOne and KnowBe4 Defend tools and liaise with SOC vendor Deep Seas.

Skills

Customer-first support

Incident response

Threat hunting

Documentation & KB writing

Automation opportunities

Education

8+ years IT support/infrastructure in Microsoft 365

Tools

SentinelOne

KnowBe4 Defend

Cisco administration

Cloudflare WARP/Zero Trust

Unifi Network

Cisco switches & gateways

VMware vCenter

Veeam

Windows Server

Active Directory

Azure Files

Microsoft 365

Intune

Entra

Job description

Spheros Environmental is seeking an experienced Infrastructure Engineer to resolve advanced ticket escalations, support networking across locations, and manage endpoint and email security stacks. The role emphasizes a customer-service approach to every staff interaction.

Key technologies include Entra, Intune, Veeam, VMware vCenter, Windows Server, Azure Files, Cloudflare One, Unifi and Cisco switches. Hybrid work in Denver or Petaluma is available.