Senior Messaging & Collaboration Engineer (L3) – Remote
Cognizant
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Benefits offered by this job
Job summary
Cognizant is seeking a Messaging & Collaboration L3 Engineer to provide advanced support, governance, and escalation for enterprise messaging platforms including Exchange Online and on-prem, Proofpoint, and Clearswift. You will lead complex mail flow issues and oversee migrations and security operations across a global Microsoft 365 environment.
The role requires 5–8+ years with strong Exchange experience and hands-on expertise in email security, retention, and compliance.
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
Tools
Job description
Cognizant is seeking a Messaging & Collaboration L3 Engineer to provide advanced support, governance, and escalation for enterprise messaging platforms including Exchange Online and on-prem, Proofpoint, and Clearswift. You will lead complex mail flow issues and oversee migrations and security operations across a global Microsoft 365 environment.
The role requires 5–8+ years with strong Exchange experience and hands-on expertise in email security, retention, and compliance.
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