Senior Lead System Engineer (AD, DC, DNS, DHCP)
Bengaluru, India | Onsite | Full-time | 10-15 Years Experience

About The Role

We are a leading global financial institution looking for a seasoned Active Directory Subject Matter Expert to join our enterprise infrastructure team in Bengaluru. This is a senior technical role that demands deep expertise across directory services, identity management, and core Windows infrastructure combined with the leadership presence to guide and mentor a high-performing team.
Infrastructure Management

- Manage and maintain Active Directory infrastructure including domain controllers, forests, trusts, and replication
- Administer and troubleshoot DNS and DHCP services to ensure high availability and consistent performance
- Design, implement, and manage Group Policies (GPOs) to enforce security and operational standards across the environment
- Deploy and manage Public Key Infrastructure (PKI) and Microsoft Certificate Services throughout the certificate lifecycle
- Administer and support Distributed File System (DFS) for data replication and access management
- Manage Microsoft Key Management Services (KMS) to ensure licensing compliance
Operations & Engineering
- Perform root cause analysis and advanced troubleshooting for complex infrastructure-related issues
- Automate administrative tasks and operational workflows using PowerShell scripting
- Monitor system performance, availability, and capacity to ensure proactive infrastructure health
- Ensure adherence to security best practices and regulatory compliance standards
Collaboration & Transformation
- Collaborate with cross-functional teams on migrations, upgrades, and enterprise transformation initiatives
- Support planned change activities to minimise risk and operational disruption
- Contribute to documentation, SOPs, and knowledge base maintenance
Leadership & Mentorship




- Act as the technical lead and go-to SME for the team on all Active Directory, Domain Controller and identity-related matters
- Provide guidance and mentorship to junior and senior engineers
- Engage with stakeholders at all levels with clarity, confidence, and ownership
Technical Skills Required
- Active Directory (ADDS) Architecture, design, upgrade, and migration
- DNS & DHCP Configuration, troubleshooting, and optimisation
- Group Policy (GPO) Design, implementation, and troubleshooting
- PKI & Certificate Services Deployment and full lifecycle management
- DFS Namespaces and replication
- Microsoft KMS Setup and ongoing maintenance
- PowerShell Advanced scripting and automation
- Windows Server 2016 / 2019 / 2022 /2025 administration
- Knowledge on SCCM, MECM, INTUNE will plus
Good to Have

- Experience with Azure AD and Hybrid Identity environments
- Knowledge of Active Directory security hardening and auditing tools
- Exposure to ITIL processes Incident, Change, and Problem Management
- Hands-on experience in migration, consolidation, or infrastructure transformation projects
Certifications (Preferred)
- Microsoft Certified: Identity and Access Administrator Associate
- Microsoft Certified: Windows Server Hybrid Administrator Associate
- MCSE or equivalent
What You Bring
- 10-15 years of progressive experience in enterprise Active Directory and Windows infrastructure environments
- Robust problem-solving and analytical capabilities with a structured approach to troubleshooting
- Excellent communication and stakeholder management skills
- Ability to lead with authority and collaborate with humility in a rapid-paced enterprise setting
- A disciplined, security-conscious mindset with a commitment to operational excellence Disclaimer: This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.

📌 Senior Lead System Engineer (Karnataka)
🏢 Infinite
📍 Karnataka