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
- Solid 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 fast-paced enterprise setting
- A disciplined, security-conscious mindset with a commitment to operational excellence

Qualifications

Any degree in IT or BE

Range of Year Experience-Min Year

10

Range of Year Experience-Max Year

15

📌 Senior Lead System Engineer (Bengaluru)
🏢 Infinite Computer Solutions
📍 Bengaluru