Lead IT Infrastructure

About Onit

We're redefining the future of legal operations through the power of AI. Our cutting-edge platform streamlines enterprise legal management, matter management, spend management and contract lifecycle processes, transforming manual workflows into intelligent, automated solutions.

We’re a team of innovators using AI at the core to help legal departments become faster, smarter, and more strategic. As we continue to grow and expand the capabilities of our new AI-centric platform, we’re looking for bold thinkers and builders who are excited to shape the next chapter of legal tech.

If you're energized by meaningful work, love solving complex problems, and want to help modernize how legal teams operate, we’d love to meet you.

Position Summary

The Technical Lead IT - Infrastructure will be responsible for supporting various IT Projects, Environments and Critical tickets. Project and stakeholder management ensuring seamless execution of IT Projects. Technical expertise in Complete Microsoft 365 Suite must have for this position (SSO, SPO, OD, MS Teams, PowerShell, Intune, Email Security, Exchange, Purview and IAM are few to mention). Ability to frontend, troubleshoot and resolve issues related to various applications and Microsoft 365 services.

Key Responsibilities

• Expertise in Microsoft Entra Suite, including IAM, SSO, App Registration, AD Connect, and Tenant Migrations.
• Apps and Tools: Entra ID, Exchange Online, MS Teams Collaboration, OneDrive, and SharePoint. MS Licensing, Purview, SPO Governance, Conditional access, DLP, PIM, AAD Connect, Intune Security Baselines and compliance policies.
• Platform Security: LAPS, break-glass resilience, ransomware protection, M365 backup strategy.
• Compliance & eDiscovery: Implement Microsoft Purview legal hold, Core/Advanced eDiscovery workflows, audit, investigation procedures, and evidence preservation.
• Migrations: Lead Google Workspace → OneDrive/SPO migrations with attention to metadata (Project Management, tooling selection, mapping, and validation).
• Messaging (EXO) and Email Security:
• Experience in email auth protocols (DKIM, DMARC, SPF) for enhanced security.
• Knowledge of Mimecast for email security and threat protection.
• Knowledge of CrowdStrike for endpoint security and threat detection.
• Owned the architecture, rollout, and governance of the Microsoft 365 stack—spanning endpoint management (Intune/Windows), collaboration (SPO/OD/Teams), messaging (EXO + Mimecast), identity (Entra ID), and compliance (Purview/eDiscovery). Drive least-privilege access, automation, and cost-optimized licensing while keeping user experience simple and secure.
• Implementation of IT Migration projects (T2T, Google Workspace) and Critical incident handling.
• Knowledge of Mac, JAMF & Compliance (ISO, SOC2, HIPAA) would be a plus.

Required Skills

• 10+ years of experience in Microsoft 365 Endpoint & Collaboration Architect
• Microsoft Entra ID (Azure AD), IAM, and M365 migrations.
• Exchange Online, Teams, OneDrive, and SharePoint migrations.
• Email security best practices, cloud security, and endpoint protection tools.
• IT Migration Projects and stakeholder management experience.
• Knowledge of migration tools like Sharegate, BitTitan, Quest, or MS Migration Manager.
• Knowledge of SOC2, HIPAA, GDPR, ISO 27001 process and compliance