Senior Systems Integration Engineer

Role Summary

We are seeking a Technical Integration Lead to own end-to-end execution of technical workstreams for active and upcoming M&A activity. You will deliver tenant-to-tenant migrations, network redesigns, and telephony integrations while guiding junior resources and ensuring minimal user disruption.

Day to day, you will follow an established Technical Integration Playbook (roadmaps, runbooks, validation scripts, rollback plans) to produce consistent, repeatable results with limited discovery. You’ll lead Microsoft 365/Azure/Entra activities, oversee Intune and endpoint changes, coordinate security integrations (e.g., Zscaler), and drive on-site cutovers. Outside of M&A, you’ll contribute to broader IT infrastructure initiatives, including Azure/Entra optimizations, Intune standardization, and security policy rollouts.

Key Responsibilities

• Lead Microsoft 365/Azure tenant-to-tenant migrations (Exchange, OneDrive, Teams, SharePoint, Entra ID objects) with phased approaches, identity mapping, validation, and low-downtime cutovers using approved tools.
• Drive network redesign and IP schema enforcement (VLAN/subnet planning, DHCP scope remediation, DNS updates) and coordinate decommissioning of legacy gear per runbooks.
• Execute Zscaler/ZIA/ZPA migrations and Branch Connector deployments; plan and run site-by-site cutovers during maintenance windows.
• Administer Azure/Entra (Conditional Access, hybrid identity sync/Azure AD Connect) and complete Intune optimizations (Autopilot, configuration profiles, security baselines, compliance).
• Lead telephony migrations/integrations to the corporate platform (device provisioning, site cutovers, user support) and provide escalation guidance to on-site resources.
• Oversee on-site execution: data collection, inventory validation, VLAN configuration, racking/cabling, Wi-Fi setup/security, and user support during cutovers.
• Coordinate with vendors (telecom, ISPs, hardware/software), manage risks/issues in tools like JIRA/Teams/SharePoint, and maintain transparent status tracking.
• Document as-built configurations, lessons learned, and updated runbooks; contribute improvements back to the Master Technical Integration Playbook and conduct knowledge-transfer sessions.

Key Requirements

• 5+ years as a Systems/Infrastructure Engineer (Level 2 or higher) with 2+ prior M&A integrations as the technical lead or primary engineer; AZ-104-level Azure Administrator proficiency (or equivalent hands-on).
• Proven expertise delivering Microsoft 365 tenant-to-tenant migrations (Exchange, OneDrive, Teams, SharePoint, Entra ID) using tools such as ShareGate and native cross-tenant capabilities.
• Strong Azure/Entra administration: Conditional Access, hybrid identity (Azure AD Connect), license assignment, and advanced Microsoft 365 administration.
• Solid on-prem and network foundation: Active Directory, Group Policy, DNS/DHCP, VLANs/subnets, switching/routing, and Wi-Fi.
• Intune device management at scale (Autopilot, packaging/deployment via Intune and GPO, endpoint security baselines, compliance).
• Experience with SASE/security stack (preferred Zscaler ZIA/ZPA, Branch Connectors) and enterprise firewalls; prior UC/telephony migrations (e.g., Teams Phone, Direct Routing, SIP) preferred.
• Scripting and automation with PowerShell; disciplined change/runbook execution; familiarity with JIRA/JSM for tracking and service management.
• Excellent leadership and communication—able to mentor junior staff, manage risks, set clear expectations, and deliver smooth cutovers; available for weekend maintenance windows and travel.