TCS has been a excellent pioneer in feeding the fire of Young Techies like you. We are a global leader in the technology arena and there's nothing that can stop us from growing together.

Experience Range: 9 – 14 Yrs
Location : Bang/Chennai
What we are looking for
Must Have
experience in enterprise email security and messaging platforms, with

5+ years dedicated to Cisco IronPort ESA

in large, complex environments.
Strong knowledge of

SMTP, DNS, FTP, SSH, TCP/IP , and secure mail routing principles.
Expertise in

Cisco ESA features : AMP, DLP, encryption, content filtering, reputation-based controls, and outbreak filters.
Hands-on experience with

policy design ,

disaster recovery planning , and

risk analysis

for email security.
Proficiency in

UNIX/Linux administration , scripting (PowerShell, Python, Bash), and automation frameworks.
Solid networking knowledge, including

firewalls, NAT, subnetting , and load balancing.
Experience integrating ESA with

Microsoft Exchange (2016/2019)

and

Microsoft O365

environments.
Familiarity with

Active Directory/LDAP





for directory integration and authentication.

Responsibilities:

Architect and manage

complex Cisco IronPort ESA deployments (physical & virtual), including

high availability , clustering, and disaster recovery strategies.
Lead Tier-3/L4 troubleshooting

for critical email security incidents, performing

protocol-level analysis

(SMTP, DNS, TLS) and root cause investigations.
Design and enforce security policies

for spam filtering, malware protection (AMP), DLP, encryption, and outbreak filters to meet compliance and regulatory requirements.
Plan and execute migrations, upgrades, and capacity expansions

for Cisco ESA appliances in large-scale environments.
Develop and execute test plans

for new features, configurations, and integrations with Microsoft Exchange and Microsoft 365.
Integrate ESA with Security Management Appliance (SMA)

for centralized reporting, quarantine management, and policy orchestra

📌 Iron Port Admin (Vasanth Nagar)
🏢 Tata Consultancy Services
📍 Vasanth Nagar