Assistant Manager - IT Operations & Infrastructure

Tata Communications Redefines Connectivity with Innovation and IntelligenceDriving the next level of intelligence powered by Cloud, Mobility, Internet of Things, Collaboration, Security, Media services and Network services, we at Tata Communications are envisaging a New World of Communications

Key/Major Activities

Provide L2 support for Active Directory (AD) incidents and requests.

Troubleshoot and resolve issues related to:  Manage and maintain a multi-domain Active Directory environment.  Create, modify, and manage users, groups, service accounts, and OUs.  Perform OU movement, delegation, and access permission management.  Manage Group Policies (GPOs) – creation, editing, troubleshooting, and GPO impact analysis.  Handle FSMO roles, replication checks, and AD health monitoring.

Manage and maintain user lifecycle processes: provisioning, de-provisioning, and account management.

Perform AD health checks, monitoring logs and alerts.

Support Active Directory Federation Services (ADFS) and/or Azure AD (if applicable).

Assist in Group Policy creation, testing, and deployment.

Collaborate with L3 and other IT teams for escalation and root cause analysis.

Document all changes, procedures, and troubleshooting steps.

Follow ITIL-based processes (Incident, Problem, Change Management).

Knowledge on RODC concepts Technical Skills

3–5 years of experience managing and troubleshooting Active Directory in an enterprise environment.

Good knowledge of Windows Server OS.

Experience with:

Group Policy Management Console (GPMC)

PowerShell scripting for AD automation

DNS, DHCP, and FSMO roles

Understanding of AD replication topology and tools like repadmin, dcdiag.

Familiarity with Azure Active Directory, MFA, or AD Connect is a plus.

Strong analytical and problem-solving skills.

Effective communication and documentation skills.

Identity and Access Management

Should have good experience in Hybrid Environment Management

Automation and Scripting

Monitoring and Reporting

Follow company security standards & auditing procedures

Support compliance (ISO, SOC, internal security audits)

Resolve login failures, trust relationship issues, GPO conflicts, and AD replication issues

Troubleshoot authentication, Kerberos, NTLM, DNS-related issues Write and maintain PowerShell scripts for automation of AD tasks:

Bulk user creation

OU movement

Group management

Attribute updates

AD health reporting Familiarity with Azure AD, AAD Connect, SSO/SAML is a plus Certifications:

Microsoft Certified: Identity and Access Administrator Associate

Microsoft Certified: Windows Server Hybrid Administrator Associate

Microsoft Azure Administrator (AZ-104) MCSA / MCSE (Legacy)

Microsoft Identity and Access Administrator (SC-300) Behavioural Skills

Project management skills

Strong documentation and reporting skills.

Ability to communicate with cross-functional teams.

Good analytical and problem-solving skills.

Ability to handle high-severity incidents responsibly.