Senior Client Support Engineer; NYC)

** Candidate must be located in or near the NYC Metro Area**

At Coretelligent, we take ownership of the technology our clients rely on every day.

We partner with growing, highly regulated organizations that need secure, dependable IT environments built to scale.

Over the past several years, Coretelligent has entered a new chapter. We have strengthened our leadership team, modernized our service delivery, and sharpened our focus on long‑term client outcomes. Our work spans managed IT, cybersecurity, cloud, and strategy, delivered through a model designed for consistency, transparency, and trust.

We are building a team of professionals who care deeply about quality, ownership, and continuous improvement. If you value clear expectations, thoughtful collaboration, and work that genuinely matters to the businesses you support, you will feel at home here.

Job Overview

We are looking for a Senior Client Support Engineer to serve as a primary technical resource for a key client environment, while supporting additional clients as needed. This is a highly visible, client‑facing role where you will act as a trusted partner, balancing hands‑on support, proactive system management, and technical leadership in a fast‑paced MSP environment.

This role requires someone who is comfortable owning a client environment end‑to‑end, with strong experience in modern Microsoft technologies including Entra , Intune, Azure, and Microsoft 365. You will work closely with client stakeholders and internal teams to support daily operations, drive improvements, and ensure a high standard of service delivery.

What you’ll do:

• Serve as the primary technical point of contact for a client environment, supporting ~300–400 users and acting as a trusted advisor
• Manage Identity and Access across Microsoft Entra , including user lifecycle, permissions, and security best practices
• Own and maintain Intune environments, including device management, policy creation, compliance enforcement, and ongoing optimization
• Support and manage Microsoft 365, including Teams and Exchange Online, ensuring stability and performance across the environment
• Work within Azure, supporting cloud infrastructure, virtual machines, and overall environment health
• Provide hands‑on support and troubleshooting across:
  • End‑user systems (Windows and macOS)
  • Hardware and peripherals (workstations, printers, mobile devices)
  • Networking and connectivity (VPNs, DNS, DHCP, firewalls, VLANs)
• Troubleshoot and resolve escalated technical issues across endpoints, access, applications, and connectivity
• Lead and contribute to client‑facing initiatives such as deployments, environment improvements, and infrastructure changes
• Perform proactive system checks, lifecycle management, licensing reviews, and environment optimization
• Partner directly with client stakeholders, including leadership, to align on priorities, initiatives, and long‑term improvements
• Maintain accurate documentation, environment notes, and system configurations
• Mentor junior engineers and serve as an escalation point for more complex issues

What you bring to the table:

• 5+ years of experience in IT support, systems engineering, or MSP environments
• Strong hands‑on experience with:
  • Microsoft Entra  (Identity & Access Management)
  • Microsoft Intune (device management, policy creation, compliance)
  • Microsoft 365 (Teams, Exchange Online)
  • Microsoft Azure (VMs, core services, environment management)
• Azure certification (AZ-104) preferred but not required
• Experience supporting mid‑sized environments (200+ users), ideally in a client‑facing or MSP setting
• Strong troubleshooting skills across endpoints, user access, and cloud‑based environments
• Ability to manage both reactive support and proactive system improvements
• Strong communication skills with…