Senior Unified Communications & M365 Engineer

Key Responsibilities

• Lead the architecture, implementation, and support of Unified Communications solutions focused on Microsoft 365 and Exchange Online/Hybrid.
• Serve as the subject matter expert for email architecture, including routing, mail flow, authentication, deliverability, and message hygiene.
• Administer and support Proofpoint security platforms, including DLP, encryption, TAP, routing, and policy management.
• Configure and maintain Metadact or similar tools for metadata scrubbing, compliance, and secure file handling.
• Manage the full email lifecycle, including DNS, SMTP, SPF/DKIM/DMARC, TLS, connectors, and transport rules.
• Oversee hybrid Exchange configurations, coexistence, and migration activities.
• Provide Tier 3/4 support to resolve complex messaging and Unified Communications issues.
• Collaborate with security, infrastructure, and applications teams to ensure secure, resilient, and high-performing messaging services.
• Develop and maintain system documentation, architecture diagrams, and operational runbooks.
• Contribute to long-term UC strategy, roadmap planning, and lifecycle management initiatives.
• Support audits, risk assessments, and compliance efforts related to messaging and collaboration platforms.

Additional Responsibilities

• Partner with infrastructure and security teams to optimize system reliability and performance.
• Mentor junior engineers and lead technical projects.
• Maintain high standards for service quality, technical accuracy, and response efficiency.

Preferred Technical Experience

• Experience with telephony/VoIP platforms such as Microsoft Teams Phone, Cisco, or Avaya.
• Working knowledge of SharePoint Online, including site permissions and administration.

Required Skills and Technical Proficiencies

• 7+ years in Unified Communications, Messaging, or Microsoft 365 engineering roles.
• Expert-level knowledge of Microsoft 365, Exchange Online, and hybrid Exchange architectures.
• Hands-on experience with Proofpoint email security solutions.
• Proficiency with Metadact or similar metadata-scrubbing tools.
• Deep understanding of email lifecycle technologies: DNS, SMTP, SPF/DKIM/DMARC, TLS, and routing topologies.
• Strong troubleshooting skills in hybrid messaging and UC environments.
• Knowledge of Azure AD, OAuth, Conditional Access, and MFA.
• Proficiency with PowerShell or similar scripting tools for automation and administration.
• Experience within law firm or professional services environments is preferred.

Education

• Bachelor's degree in Information Technology, Computer Science, or a related discipline, or equivalent professional experience.