Senior M365 Messaging & Unified Communications Engineer

Job Title:         Senior M365 Messaging & Unified Communications Engineer
Location:         Remote CA / Candidates must reside in the state of California

Position:          Full-Time Direct Hire

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TalentFish is seeking a full-time Senior M365 Messaging & Unified Communications Engineer. This is a remote position open to California residents. Candidates near Los Angeles preferred.

Overview
The Senior Engineer will architect, support, and enhance the enterprise collaboration and messaging environment, with primary responsibility for Microsoft 365 email and unified communications platforms. This role will focus on end-to-end email delivery operations. Qualified candidates must have strong hands-on experience across M365 services, including Microsoft Teams, and end-to-end ownership of email platforms and related workflows.

The ideal candidate will possess deep expertise in Microsoft 365, Exchange (Online and Hybrid), Proofpoint, and Metadact, and a comprehensive understanding of the full email lifecycle across cloud and hybrid models. Experience with telephony/VoIP and SharePoint Online is a PLUS.

What You Will Do

·       Manage the design, administration, and optimization of the organization’s Microsoft 365 environment.

·       Oversee the administration of M365 services, including Exchange, MS Teams, and other key Microsoft applications.

• Lead the design, implementation, and support of enterprise Unified Communications solutions with a primary focus on Microsoft 365, Exchange Online, and hybrid Exchange environments.
• Act as the subject-matter expert for all email architecture, including on-prem and cloud routing, mail flow design, authentication, message hygiene, and deliverability.
• Understand and assist in administering email security platforms, including Proofpoint, supporting policies, DLP, encryption, TAP, and routing.
• Support and maintain Metadact for metadata scrubbing, compliance, and secure content handling.
• Manage and troubleshoot the complete email lifecycle, including DNS, SMTP relays, connectors, transport rules, security controls, and message tracking.
• Oversee hybrid Exchange configurations, connectors, coexistence, and migration activities.
• Provide Tier 3–4 escalation support for complex messaging and unified communications issues.
• Collaborate with security, infrastructure, and application teams to maintain consistent standards and ensure secure, high-performing UC services.
• Develop and maintain detailed system documentation, architectural diagrams, and operational runbooks.
• Contribute to UC strategy, roadmap planning, and lifecycle management initiatives.
• Participate in audits, risk assessments, and policy development related to messaging and collaboration technologies.

What You Bring

• Bachelor's degree in Information Technology, Computer Science, or related field (or equivalent experience).
• 7+ years of experience in Unified Communications, Messaging, or Microsoft 365 engineering roles.

·       7+ years’ experience and expert-level knowledge of Microsoft 365, Exchange Online, Exchange Hybrid, and core mail flow components.

• Strong understanding of end-to-end email flow, from message origination through delivery, security inspection, and routing.
• PowerShell or similar scripting for automation and system administration.
• Hands-on experience with Proofpoint email security solutions.
• Working proficiency with Metadact or other metadata-scrubbing solutions.
• Deep understanding of the full email journey, including DNS, SMTP, SPF/DKIM/DMARC, TLS, routing topologies, and mail hygiene.
• Strong capability in diagnosing, troubleshooting, and resolving complex email and UC issues across hybrid architectures.
• Solid understanding of identity and security technologies: Azure AD, OAuth, conditional access, MFA, etc.

• Strong communication and documentation capabilities.
• Ability to lead projects and mentor junior engineers.
• Excellent analytical, problem-solving, and troubleshooting skills.
• Collaborative mindset with a focus on service quality and resiliency.
• Experience with telephony/VoIP systems, such as Microsoft Teams Phone, Cisco, Avaya, or similar.
• Working knowledge of SharePoint Online, including permissions, site architecture, and administration.
• Certifications in any of the following are a PLUS:
• Microsoft 365 Certified: Messaging Administrator
• MCSE / MS-100 / MS-203
• Proofpoint Certified Specialist
• Relevant UC or security certifications

Compensation and Employment
This role requires authorization to work in the U.S. without current or future visa sponsorship. The expected base salary range for this position is $110,000 - $140,000 per year depending on experience, qualifications, or other factors. This role qualifies for a bonus plan and full comprehensive benefits. All offers are contingent upon the completion of a background check, which may include but is not limited to reference checks, education verification, employment verification, drug testing, criminal records checks, and any required certifications or compliance requirements based on the end client's background check policies and applicable laws.

TalentFish is an employee-owned company pioneering a new realm in talent acquisition. We are redefining IT staffing by evolving AI, video screening, and our unique platform. TalentFish focuses on providing the best employee, consultant, and client experience possible. At TalentFish, we are an Equal Opportunity Employer; we embrace and encourage diversity.