Senior Engineer, Unified Communications / Microsoft 365
About The Position
HireNow Staffing is partnering with a top-tier Am Law 50 firm to recruit a seasoned and skilled Senior Engineer, Unified Communications / Microsoft 365. This role is critical to the stability, security, and performance of the firms enterprise messaging and collaboration environment and requires deep, hands-on expertise across Microsoft 365 and email systems. This is a long-term, core engineering role. Candidates with primarily contract, temporary, or freelance backgrounds will not be considered. The Opportunity This role owns the end-to-end architecture, operations, and reliability of enterprise Unified Communications and messaging services. You will serve as a senior technical authority for Microsoft 365—particularly Exchange Online and hybrid email environments—ensuring seamless email delivery, secure collaboration, and resilient system performance across the firm. The ideal candidate brings expert-level knowledge of the complete email lifecycle, strong automation skills, and the ability to lead complex troubleshooting efforts in a highly regulated, high-availability environment. Role Overview As Senior Engineer, Unified Communications / M365, you will architect, support, and continuously improve the firm's collaboration and messaging platforms. You will partner closely with security, infrastructure, and application teams while providing Tier 3/4 escalation support and technical leadership across the organization. Who Thrives in This Role You'll be a strong fit if you: Enjoy owning complex, mission-critical systems end to end Take pride in precision, reliability, and security Prefer long-term platform ownership over short-term projects Are comfortable acting as a technical authority and escalation point Value collaboration, documentation, and operational excellence Why This Role Stands Out Senior-level ownership of enterprise M365 and UC platforms High-impact role within a globally respected legal organization Opportunity to influence long-term collaboration and messaging strategy Competitive compensation with full benefits and bonus Remote flexibility with regional alignment
Requirements
- 7+ years of experience in Unified Communications, Messaging, or Microsoft 365 engineering roles
- Expert-level knowledge of Microsoft 365, Exchange Online, and hybrid Exchange architectures
- Deep understanding of email flow end to end, including: DNS SMTP SPF / DKIM / DMARC TLS Routing topologies
- Hands-on experience with Proofpoint email security solutions
- Working proficiency with Metadact or similar metadata-scrubbing tools
- Strong experience diagnosing and resolving complex UC and messaging issues
- Solid knowledge of identity and security technologies, including: Azure AD OAuth Conditional Access MFA
- Proficiency with PowerShell or similar scripting tools for automation and system administration
- Strong job stability and long-term employment history
- Ability to work the required 4:00 PM – 12:00 AM PST schedule
Nice To Haves
- Experience with telephony / VoIP platforms, such as Microsoft Teams Phone, Cisco, Avaya, or similar
- Working knowledge of SharePoint Online, including permissions, site architecture, and administration
- Proven experience leading projects and mentoring junior engineers
- Relevant certifications, such as: Microsoft 365 Certified: Messaging Administrator MS-100 / MS-203 or MCSE Proofpoint Certified Specialist Other UC or security certifications
- Bachelor's degree in information technology, Computer Science, or equivalent experience
Responsibilities
- Lead the design, implementation, and ongoing support of Unified Communications solutions, with a primary focus on Microsoft 365 and Exchange Online/Hybrid
- Serve as the subject matter expert for enterprise email architecture, including routing, authentication, deliverability, and message hygiene
- Administer and support email security platforms, including: Proofpoint (DLP, encryption, TAP, routing, and policy management) Metadact for metadata scrubbing, compliance, and secure content handling
- Manage and troubleshoot the full email lifecycle, including: DNS configuration SMTP relays Connectors and transport rules Message tracking and diagnostics
- Oversee hybrid Exchange configurations, coexistence strategies, connectors, and migration activities
- Provide Tier 3/4 escalation support for complex UC and messaging issues
- Partner with security, infrastructure, and identity teams to ensure secure, resilient services
- Develop and maintain system documentation, architecture diagrams, and operational runbooks
- Contribute to UC strategy, roadmap planning, and lifecycle management
- Participate in audits, risk assessments, and policy development related to messaging and collaboration systems
Benefits
- Full benefits package
- bonus
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What This Job Offers
Job Type
Full-time
Career Level
Mid Level
