Senior IT Help Desk Administrator — Windows & M365 Specialist

Adesis, Inc.; Wilmington (DE); On-site; USD 80,000 - 100,000; Full time

Benefits offered by this job

Competitive base salary

Annual bonus program

Medical/Prescription Drug coverage

Dental and Vision for employees and 가족

Flexible Spending Accounts (FSAs)

Health Savings Account (HSA)

Group Term Life insurance

Short term disability

Long-term disability

Employee Stock Purchase Plan (ESPP)

401(k) company contribution

Annual charitable matching gift

Generous Paid Time Off

Job summary

Adesis Inc. is seeking a Senior Help Desk Administrator to provide advanced end-user support, systems administration-level troubleshooting, and project support across the company’s end-user technology environment.

You will support hardware, software, Microsoft 365, enterprise applications, networking, and devices across DE and NJ offices, balancing day-to-day tasks with strategic initiatives. This role requires strong customer service, technical ownership, and the ability to work with vendors

Qualifications

• 5+ years of progressive help desk, desktop support, systems support, or end-user technology experience in a corporate environment.
• Senior-level experience supporting Windows workstations, Microsoft 365, Active Directory, endpoint devices, printers, mobile devices, and common business applications.
• Strong troubleshooting across hardware, software, OS, applications, network, accounts, permissions, security.
• Working knowledge of TCP/IP, DHCP, DNS, LAN/WAN, endpoint management, remote support tools, remote monitoring.
• Experience with ticket-based support, prioritization, documentation, escalation, and expectation management.
• Ability to write clear technical documentation, routine reports, procedures, and end-user communications.
• Strong communication, organization, time management, follow-up, and prioritization.
• Willingness to travel between Delaware and New Jersey offices as needed.
• Relevant certifications such as CompTIA A+, Network+, Security+, Microsoft 365, Azure, or ITIL Foundation are preferred.

Responsibilities

• Provide advanced help desk support, including third-tier issue resolution through phone, email, instant messaging, and the ticketing system.
• Troubleshoot Windows operating systems, enterprise applications, network connectivity, endpoint devices, permissions, and related infrastructure.
• Triage, route, monitor, resolve, and document support tickets, ensuring clear findings, actions, and resolutions.
• Analyze event logs, compatibility issues, recurring incidents, and user-reported problems to identify root causes and permanent solutions.
• Stage, image, configure, deploy, refurbish, and support end-user equipment in alignment with company standards.
• Support onboarding by provisioning equipment, configuring user access, and setting up workstations for new hires.
• Track IT inventory and support global asset tracking, device management, and lifecycle management practices.
• Install and support software, hardware, printers, peripherals, and related technology at company locations, including Delaware and New Jersey offices as needed.
• Support Active Directory, Microsoft 365, SharePoint, enterprise SaaS applications, user access, permissions, workflows, and user how-to questions.
• Coordinate with internal IT teams, specialists, and vendors to resolve issues and support business operations.
• Create and maintain technical documentation, support procedures, end-user communications, and internal knowledge articles.
• Support automation, workflow improvements, SaaS integrations, onboarding improvements, IT projects, and departmental initiatives.
• Track and report ticket metrics, monthly status data, and support activity trends.
• Contribute to training on existing, new, and emerging technologies.
• Follow procedures that support company standards, ISO requirements, and internal IT governance practices.
• Work occasional non-business hours as required for maintenance windows, project activities, or urgent business needs.

Job description

Adesis Inc. is seeking a Senior Help Desk Administrator to provide advanced end-user support, systems administration-level troubleshooting, and project support across the company’s end-user technology environment.

You will support hardware, software, Microsoft 365, enterprise applications, networking, and devices across DE and NJ offices, balancing day-to-day tasks with strategic initiatives. This role requires strong customer service, technical ownership, and the ability to work with vendors