Walk In Drive on 08-Aug-2026 at Chennai , Tata Consultancy Services, SIPCOT Information Technology Park, Navalur Post, Siruseri, Chennai, Tamil Nadu, 603103.

Role: Messaging/O365 - Cisco E-mail Security Appliance
Experience: 4 to 8 Years

Location: Chennai

Must-Have

- Strong experience in Microsoft 365 Messaging Administration, including Exchange Online, Exchange Hybrid, and Exchange Server 2019.
- Hands-on experience administering and supporting Microsoft Exchange Online, mailbox lifecycle management, mail flow, transport rules, SMTP relays, and message tracing.
- Extensive experience managing Cisco Email Security Appliance (ESA) and Cisco Cloud Email Security (CES) platforms.
- Proven experience in Cisco ESA to CES migration projects, including planning, assessment, policy migration, mail flow redesign, implementation, testing, validation, and post-migration support.
- Strong knowledge of Email Security and Messaging Infrastructure, including SMTP, DNS, SPF, DKIM, DMARC, TLS, MX Records, and Autodiscover.
- Hands-on experience with Microsoft Entra ID (Azure AD), Azure AD Connect, ADFS, SSO,



MFA, Conditional Access, and Identity Management.
- Experience with Microsoft Teams, One Drive for Business, Share Point Online, and Collaboration Services Administration.
- Experience administering Microsoft Defender for Office 365 and email threat protection solutions.
- Experience with Microsoft Purview Compliance Portal, DLP, eDiscovery, Retention Policies, Content Search, and Compliance Management.
- Strong background in Incident Management, Problem Management, Change Management, and Root Cause Analysis (RCA).
- Experience supporting P1/P2 critical incidents in a global enterprise setting.
- Hands-on experience working with Power Shell scripting and Exchange Online Power Shell for automation and administration.
- Experience using Microsoft Graph API for automation and administrative tasks.
- Experience managing and troubleshooting mail routing, email delivery, phishing, spoofing, and mail security incidents.

📌 Office Administrator (Chennai)
🏢 Tata Consultancy Services
📍 Chennai