Senior Messaging & Collaboration Engineer - Remote (L3)

Cognizant; Sacramento (CA); Remote; USD 99,000 - 115,000; Full time

Benefits offered by this job

Medical/Dental/Vision/Life Insurance

Paid holidays plus Paid Time Off

401(k) plan and contributions

Long-term/Short-term Disability

Paid Parental Leave

Employee Stock Purchase Plan

Job summary

Cognizant is seeking an experienced Messaging & Collaboration L3 Engineer to provide advanced support, governance, and escalation across enterprise messaging platforms. This remote USA role focuses on stability, security, and continuity of messaging services for a large organization.

Responsibilities include administering Exchange Online/On-Prem, Proofpoint, and related tools, handling complex mail flow issues, migrations, and compliance activities, while mentoring L1/L2 teams.

Qualifications

• 5–8+ years supporting enterprise messaging environments.
• Strong Exchange Online and Hybrid Exchange experience.
• Experience with Proofpoint, Clearswift, or similar email security platforms.
• Experience with Enterprise Vault administration.
• Experience handling mailbox migrations and L3 escalations.
• Experience supporting global Microsoft 365 environments.

Responsibilities

• Act as the L3 escalation point for Messaging & Collaboration incidents.
• Administer Exchange Online, Exchange On-Prem, Proofpoint, Clearswift, Enterprise Vault, Biscom, and BitTitan.
• Troubleshoot complex mail flow, routing, connector, gateway, and hybrid Exchange issues.
• Support onboarding/offboarding, mailbox provisioning, permissions, and shared mailbox administration.
• Manage email security, anti-spam, anti-phishing, and secure mail gateway operations.
• Support mailbox migrations, tenant-to-tenant transitions, and messaging modernization projects.
• Support retention, legal hold, archive restore, journaling, and compliance activities.
• Maintain runbooks, SOPs/SOWs, knowledge articles, and transition documentation.
• Provide KT, reverse KT, and mentoring support for L1/L2 teams.

Skills

Exchange Online

Exchange On-Prem / Hybrid Exchange

Proofpoint Cloud

Proofpoint On-Prem

Clearswift

Enterprise Vault

BitTitan MigrationWiz

Biscom

Microsoft 365 Administration

PowerShell

ServiceNow

Job description

Cognizant is seeking an experienced Messaging & Collaboration L3 Engineer to provide advanced support, governance, and escalation across enterprise messaging platforms. This remote USA role focuses on stability, security, and continuity of messaging services for a large organization.

Responsibilities include administering Exchange Online/On-Prem, Proofpoint, and related tools, handling complex mail flow issues, migrations, and compliance activities, while mentoring L1/L2 teams.