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HireNow Staffing, Inc. Direct Placement Online Services · 1 day ago

Senior Engineer, Unified Communications / Microsoft 365

United States

Full-time

Remote

Mid, Senior Level

$108K/yr - $140K/yr

7+ years exp

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 firm's enterprise messaging and collaboration environment, requiring deep expertise across Microsoft 365 and email systems.

Staffing & Recruiting

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

Qualification

Microsoft 365Exchange OnlineUnified CommunicationsProofpointPowerShellAzure ADSMTPDNSMFAProject LeadershipCollaborationDocumentation

Required

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

Preferred

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