Senior Unified Communications & M365 Engineer
Job in
Los Angeles, Los Angeles County, California, 90079, USA
Listed on 2026-07-03
Listing for:
MDAEdge
Full Time
position Listed on 2026-07-03
Job specializations:
-
IT/Tech
Systems Engineer, Cybersecurity, M365, SharePoint & Power Platform
Job Description & How to Apply Below
Overview
Seeking a Senior Unified Communications & M365 Engineer to design, support, and enhance enterprise collaboration and messaging systems. This role manages end-to-end email delivery operations and administration of Microsoft 365 core services, including Exchange Online (and Hybrid), Teams, and related collaboration platforms. Office
Hours:
4:00 PM – 12:00 AM PST
- 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.
- 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.
- Experience with telephony/VoIP platforms such as Microsoft Teams Phone, Cisco, or Avaya.
- Working knowledge of SharePoint Online, including site permissions and administration.
- 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 Power Shell or similar scripting tools for automation and administration.
- Experience with in law firm or professional services environments is preferred.
- Microsoft 365 Certified:
Messaging Administrator Associate - MS-100 or MS-203, or MCSE
- Proofpoint Certified Specialist
- Other Unified Communications or security certifications.
- Bachelor's degree in Information Technology, Computer Science, or a related discipline, or equivalent professional experience.
Position Requirements
10+ Years
work experience
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