Assistant Manager - Captive Operations

Organisation : Novamesh Ltd (TATA Commununications Ltd)

Position : L1, Location Belapur, Customerlocation

Shift : 9x5

Job Summary:

We are seeking a well-rounded Security SolutionsSpecialist with hands-on experience in deploying, configuring, and managingsecurity platforms including EfficientIP (DNS, DHCP, IPAM), PicusSecurity (Breach and Attack Simulation), Varonis (Data Security& Governance), and ColorTokens (Microsegmentation & Zero Trust).The candidate will play a key role in optimizing the security posture of theorganization through proactive technology implementation, tuning, andcontinuous improvement.

Key Responsibilities:

EfficientIP (DNS Security & DDI Management):

• Configure and manage DDI (DNS, DHCP, IPAM) solutions using EfficientIP.
• Implement DNS threat protection, DNS tunneling detection, and response actions.
• Integrate EfficientIP with SIEM/SOC platforms for alerting and incident enrichment.

Picus Security (Breach and Attack Simulation - BAS):

• Operate and tune the Picus BAS platform to continuously validate security controls.
• Conduct attack simulations mapped to MITRE ATT&CK to identify gaps in defenses.
• Collaborate with red/blue teams to interpret simulation outcomes and drive improvements.

Varonis (Data Security and Insider Threat):

• Deploy and maintain Varonis to monitor access to critical data repositories (file shares, SharePoint, OneDrive, etc.).
• Investigate anomalous file activity, permissions misuse, and potential data exfiltration attempts.
• Support data classification, audit, and compliance initiatives (e.g., GDPR, HIPAA, PCI).

ColorTokens (Microsegmentation & Zero Trust):

• Implement Zero Trust and application-layer segmentation policies using ColorTokens platform.
• Monitor east-west traffic, define security zones, and restrict lateral movement.
• Work with infrastructure and cloud teams to enforce policy across hybrid environments.

Required Qualifications:

Education:
B.E./B.Tech/MCA/M.Sc. in Computer Science or Information Technology

Certification : CEH