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Tier Three Engineer Jobs in Perris, CA (NOW HIRING)

IT Systems Administrator

Riverside, CA · On-site

$110K - $130K/yr

Provide Tier 1, Tier 2, and Tier 3 technical support for employees across the organization ... Experience supporting manufacturing, engineering, warehouse, or production environments.

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Tier Three Engineer information

What is the difference between Tier Three Engineer vs Tier Two Engineer?

AspectTier Three EngineerTier Two Engineer
CertificationsAdvanced certifications (e.g., Cisco CCNP, CompTIA Network+)Entry to mid-level certifications (e.g., Cisco CCNA, CompTIA A+)
Work EnvironmentComplex troubleshooting, system design, and advanced supportRoutine maintenance, basic troubleshooting, and user support
Employer & Industry UsageIT service providers, large enterprises, network infrastructureSmall to medium businesses, internal IT teams
Search & Comparison IntentUnderstanding advanced support roles, career progressionBasic support roles, entry-level positions

In summary, a Tier Three Engineer handles more complex issues, requires advanced certifications, and works in larger, more technical environments compared to a Tier Two Engineer, who focuses on routine support and basic troubleshooting.

What is a Tier Three Engineer?

A Tier Three Engineer is a senior technical support or network engineer responsible for resolving complex issues that Tier One and Tier Two support cannot handle. They often troubleshoot advanced hardware, software, or network problems, and may work with specialized tools and certifications such as Cisco or Microsoft to ensure system stability and performance.

What job categories do people searching Tier Three Engineer jobs in Perris, CA look for?

The top searched job categories for Tier Three Engineer jobs in Perris, CA are:

What cities near Perris, CA are hiring for Tier Three Engineer jobs?

Cities near Perris, CA with the most Tier Three Engineer job openings:

IT Support Engineer - Tier 2 MSP Systems Engineer

Abtech Technologies, Inc.

Lake Forest, CA • On-site

Full-time

Medical, Life, PTO

Re-posted 8 days ago


Key responsibilities

  • Provide Tier 2 remote and onsite support for desktops, laptops, mobile devices, servers, Microsoft 365, networking, security, and business applications.

  • Take escalated tickets from Tier 1 technicians and drive issues to resolution with clear communication and strong documentation.

  • Administer Microsoft 365, including Exchange Online, Teams, SharePoint, OneDrive, licensing, users, groups, mail flow, and security settings.


Job description

About Abtech Technologies

  • Abtech Technologies is a growing Managed IT Services, Cloud, Cybersecurity, and Dell solution provider helping organizations modernize and protect their IT environments.

Position Summary

  • Abtech Technologies is seeking an experienced Tier 2 IT Support Engineer to support MSP clients throughout Southern California, but mainly in Orange County and Los Angeles .
  • The role requires a technically strong, customer-focused engineer who can resolve escalated issues, support Microsoft 365, Intune, Entra ID, Windows systems, networking, endpoint security, and client-facing MSP environments.
  • Candidates must live within 25 miles of Lake Forest, CA 92630.
  • If your ZIP code is not listed on your resume, please include it in your initial correspondence.
  • Please also put the following code in the subject heading of your response: Code ZR-MSP-6126

Key Responsibilities

  • Provide Tier 2 remote and onsite support for desktops, laptops, mobile devices, servers, Microsoft 365, networking, security, and business applications.
  • Take escalated tickets from Tier 1 technicians and drive issues to resolution with clear communication and strong documentation.
  • Administer Microsoft 365, including Exchange Online, Teams, SharePoint, OneDrive, licensing, users, groups, mail flow, and security settings.
  • Support Microsoft Intune and endpoint management, including device enrollment, compliance policies, configuration profiles, application deployment, Autopilot, and mobile device management.
  • Administer Microsoft Entra ID, including users, groups, MFA, Conditional Access, password resets, SSO, device registration, and hybrid identity troubleshooting.
  • Troubleshoot Active Directory, Group Policy, DNS, DHCP, file permissions, logs, backup systems, endpoint protection, email security, and basic cybersecurity controls.
  • Assist with onboarding/offboarding, M365 migrations, workstation deployments, endpoint cutovers, client documentation, and knowledge base articles.
  • Coordinate professionally with users, client management, vendors, Tier 3 engineers, and internal service teams.

Required Skills and Experience

  • Strong Windows 10/11 troubleshooting, including hardware, software, drivers, printing, profiles, connectivity, performance, and Microsoft 365 Apps.
  • Hands-on Microsoft 365 administration experience, including Exchange Online, Teams, SharePoint, OneDrive, mailbox permissions, shared mailboxes, spam/security filtering, and M365 migrations.
  • Production experience with Microsoft Intune, Autopilot, endpoint security policies, device lifecycle management, and troubleshooting enrollment or policy failures.
  • Working knowledge of Microsoft Entra ID, MFA, Conditional Access, SSO, account security, hybrid identity, least privilege, and authentication troubleshooting.
  • Windows Server administration experience, including Active Directory, DNS, DHCP, NTFS permissions, file shares, print services, Group Policy, event logs, backup review, and remote/onsite server support.
  • Understanding of TCP/IP networking, DNS, DHCP, VPN, VLANs, routing, switching, wireless, and firewall troubleshooting. Meraki experience preferred; Cisco experience a plus.
  • Experience with Hyper-V and/or VMware, including VM troubleshooting, snapshots/checkpoints, resource review, storage, networking, and performance basics.
  • Experience using helpdesk ticketing, RMM, remote support, monitoring, patching, endpoint management, and client documentation systems.
  • Security awareness, including MFA, patching, endpoint protection, phishing risk, password hygiene, suspicious email review, log review, and incident escalation.
  • Strong written and verbal communication skills, professional client service, ownership, prioritization, follow-through, and ability to work in a fast-paced MSP environment.

Preferred Qualifications

  • 5+ years of system administration or MSP support experience.
  • Microsoft certifications such as Microsoft 365 Fundamentals, Endpoint Administrator Associate, Azure Administrator Associate, or Identity and Access Administrator Associate.
  • CompTIA A+, Network+, Security+, Server+, Cisco CCNA, or equivalent hands-on experience.
  • PowerShell scripting for administration, reporting, automation, and troubleshooting.
  • Experience with Azure services, Azure Virtual Desktop, Azure Backup, Defender for Endpoint, Defender for Office 365, Mac support, and iOS/Android support.

Work Status and Travel

  • Full-time position.
  • Occasional travel throughout the greater Orange County and Los Angeles areas may be required, depending on assigned territory.
  • Reliable vehicle required. Abtech reimburses company-related mileage. Overnight travel is rare but may occasionally be required.

Ideal Candidate

  • The ideal candidate is a dependable, hands-on Tier 2 engineer who can solve problems, communicate clearly, document properly, and represent Abtech professionally.
  • This person should be technically curious, security-aware, practical, and capable of owning client issues from escalation through final resolution.

Company Description

Abtech Technologies, Inc. is a 35+ year old computer services company in Southern California with other offices around the country. We have 28 W2 engineers in the company. See our website for more information: www.abtechtechnologies.com.