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Manager - Network Operations & Support
Posted on May 19, 2026
- Mh, India
- 0 - 0 USD (yearly)
- Full Time
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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 Core AD Management
- Manage and support Active Directory Domain Services (AD DS) in multi-domain/multi-forest environments
- Perform forest/domain design, schema management, and trust relationships
- Handle Group Policy design, deployment, and troubleshooting L3/L4 Support & Troubleshooting
- Act as escalation point for complex AD issues (replication, authentication, DNS, Kerberos)
- Perform root cause analysis (RCA) and implement permanent fixes
- Troubleshoot: o AD replication failures o GPO inconsistencies o Login/authentication issues o Domain controller performance Infrastructure & Core Services
- Manage: o Domain Controllers (physical/virtual/cloud) o DNS (integrated with AD) o DHCP integration (if applicable)
- Perform AD health checks and audits Security & Compliance
- Implement AD security best practices: o Tiered administration model o Privileged access management (PAM) o Secure domain controllers
- Manage: o Security groups o Delegation models o Access controls Directory Services Enhancements
- Support hybrid identity: o Azure AD / Entra ID integration o Azure AD Connect
- Implement: o SSO (Single Sign-On) o MFA integrations Automation & Optimization
- Develop automation using: o PowerShell scripting
- Improve system reliability and reduce manual interventions Change & Incident Management
- Participate in: o CAB meetings o Change implementation
- Maintain documentation, SOPs, and runbooks Technical Skills Must-Have Skills
- Strong expertise in: o Active Directory (AD DS) o Group Policy o DNS (Windows-based)
- Deep understanding of: o AD replication o Kerberos authentication o LDAP Advanced Skills (L4 Expectation)
- AD Forest/Domain migrations
- Disaster recovery for AD (authoritative/non-authoritative restore)
- AD site topology design
- Security hardening (CIS benchmarks preferred) Good to Have
- Azure AD / Entra ID
- Azure AD Connect
- Identity Federation (ADFS)
- M365 Identity integration
- Certificates (AD CS)
- SCCM / Intune integration Tools & Technologies
- PowerShell scripting
- Active Directory Administrative Center
- AD Replication tools (repadmin, dcdiag)
- DNS Manager
- Monitoring tools Microsoft Certifications (one or more):
- SC-300 – Identity & Access Administrator
- AZ-305 / AZ-104
- AZ-800 & AZ-801
- MS-102 (Microsoft 365 Administrator)
- ITIL Certified Legacy but valuable: MCSE: Identity / Server Infrastructure
- Experience in large enterprise-scale environments
- Experience with Red Forest / hardened identity models.
- Knowledge of PKI, certificates, and MFA systems.
- Automation and Scripting
- Monitoring and Reporting
- Maintain highly available AD infrastructure with minimal downtime.
- Ensure zero-impact forest/domain upgrades and migrations.
- Resolve P1/P2 tickets within SLA.
- Automate repetitive tasks—reduce manual interventions by 40–60%.
- Conduct monthly AD health and security reports.
- Implement secure baselines and eliminate high-risk findings. Optional Add-ons (Customize if needed)
- On-call / 24x7 support requirement
- Shift-based support
- Global infrastructure support Behavioural Skills
- High availability and performance of AD services
- Zero/Minimal unplanned downtime
- Timely resolution of L3/L4 incidents
- Secure and compliant AD infrastructure
- Ability to lead crisis troubleshooting and restore services quickly.
- Strong documentation, architecture diagramming, and SOP creation.
- Cross-team collaboration (Security, Network, Apps, Cloud).
- Mentorship for junior engineers.
- Ability to handle on-call rotation and critical outages.
- Strong analytical and problem-solving mindset.
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