A Platform Engineer is responsible for the development of platforms that support the needs and use cases of different engineering teams across the organization. Creates reusable tools and workflows to streamline operational needs and facilitate automation tasks, supporting scalability of DevOps practices.
Full-Time About the Role We are seeking a Senior Infrastructure & Platform Engineer with deep expertise in Exchange Online, Hybrid Exchange, Microsoft 365, and Email Security . This is a hands-on Level 3 engineering role focused on supporting and optimizing enterprise messaging environments. The ideal candidate is a technical expert, independent problem solver, and strong communicator who can quickly contribute as a senior peer on an experienced team. Key Responsibilities Administer and support Exchange Online and Hybrid Exchange environments. Troubleshoot mail flow, connectors, transport rules, message delivery, and hybrid configurations . Manage and support Microsoft 365 services in a large enterprise environment. Administer email security solutions such as Proofpoint, Mimecast, Defender for Office 365, or EOP . Investigate security threats, quarantine issues, phishing attempts, and policy-related incidents. Utilize PowerShell for Exchange and M365 administration, troubleshooting, and automation. Support Power Automate / Power Platform workflows and administration. Handle escalations, incidents, operational support, and project work. Create and maintain technical documentation and operational procedures. Required Skills Deep expertise in Exchange Online and Hybrid Exchange . Strong experience with Microsoft 365 / Office 365 administration . Hands-on experience with Proofpoint or similar email security platforms. Solid PowerShell scripting and automation skills. Knowledge of mail flow, message trace, connectors, transport rules, SPF, DKIM, and DMARC . Exposure to Power Automate / Power Platform . Familiarity with Microsoft Entra ID ; Intune experience is a plus. Strong troubleshooting, communication, and stakeholder management skills. Ideal Candidate Senior/L3 engineer with ownership of complex messaging environments. Experienced in both operational support and project delivery. Self-driven, consultative, and able to work independently with minimal supervision.
