Senior IT Support Specialist

Fluxergy • Irvine, CA

2d • $75,000 - $85,000

About The Position

As a Senior IT Support Specialist at Fluxergy, you will serve as the primary escalation point for complex, ambiguous, or business-critical technical issues that Tier 1 support cannot resolve. You bring deep, independent technical judgment to troubleshooting across end-user computing, Microsoft 365 administration, and networking, and you're relied on to own tickets through root-cause resolution, not just triage them. This role is ideal for an experienced IT support professional who thrives on solving the hard problems, supporting executives and critical business functions with confidence, and providing informal technical guidance to less experienced team members. You will work closely with a small, collaborative IT team supporting approximately 100 employees across manufacturing, engineering, and corporate functions.

Requirements

• 6-8 years of experience supporting Windows-based desktop environments, with demonstrated progression into complex/escalated issue resolution.
• Hands-on experience administering Microsoft 365 services (Entra ID, Exchange Online, Intune, SharePoint/OneDrive, Teams), not just supporting end users on M365 apps.
• Demonstrated ability to work independently and exercise sound judgment on ambiguous or undocumented issues, owning tickets through resolution without close supervision.
• Excellent verbal and written communication skills, including experience communicating with and supporting executive-level stakeholders.
• Strong customer service mindset and ability to work effectively with employees at all levels of the organization.
• Ability to prioritize and manage a mix of escalated tickets and ad hoc requests in a fast-paced environment.
• Associate degree in Information Technology or related field, or equivalent work experience.
• Occasional ability to move, install, lift, and transport IT equipment as needed.

Nice To Haves

• Microsoft 365 Certified: Endpoint Administrator Associate, Microsoft 365 Certified: Modern Desktop Administrator, or Security, Compliance, and Identity Fundamentals (SC-900)
• Advanced experience with ticketing/incident management systems such as ManageEngine ServiceDesk
• Intermediate-to-advanced networking troubleshooting experience
• Strong macOS administration and troubleshooting experience
• Familiarity with basic scripting or automation (e.g., PowerShell) to streamline recurring fixes

Responsibilities

• Serve as the escalation point for Tier 1 support, triaging and resolving complex, multi-system, or previously unresolved incidents.
• Provide direct, high-touch technical support to executives and other VIP users, including business-critical after-hours support when needed.
• Own root-cause diagnosis for recurring or difficult hardware, software, and business-system issues across desktops, laptops, mobile devices, printers, conference room technology, and related equipment.
• Troubleshoot network infrastructure issues (including switches, wireless connectivity, and related equipment) for problems that couldn't be resolved at Tier 1.
• Diagnose and resolve advanced deployment and configuration issues on Windows and macOS devices, including enrollment or policy failures.
• Own Microsoft 365 administrative troubleshooting, including: Entra ID (Azure AD) user, group, and license management; conditional access and MFA/Security Defaults troubleshooting; Exchange Online mailbox configuration, permissions, and mail-flow issue resolution; Microsoft Intune endpoint policy troubleshooting and compliance issue resolution; SharePoint/OneDrive permissions and access issue resolution; Microsoft Teams administration and issue resolution.
• Resolve escalations and exceptions related to employee onboarding/offboarding (e.g., complex license or permission conflicts, failed automated provisioning): routine provisioning is handled by Tier 1.
• Provide informal mentorship and technical guidance to Tier 1 support staff, helping build their troubleshooting capability.
• May be consulted for technical input on IT projects or rollouts led by other members of the IT team, but is not responsible for project ownership or delivery.
• Occasionally assist with moving or installing IT equipment as needed.
• Perform other duties as assigned.

Benefits

• 95% medical benefit premiums paid by Fluxergy and covers employee, partner, and dependents
• 100% dental and vision premiums paid for employee, partner, and dependents
• 100% Life Insurance premiums paid for the employee
• 15 paid vacation days
• 2-week paid winter break
• 7 company paid holidays
• 5 paid sick days

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: Associate degree