Nadeem Ahmad
Active Directory & Identity Management Engineer | Azure Administrator | Infrastructure Architect | Cyber Security Operations
Noida
Summary
Results-driven IT professional with extensive experience in managing IT infrastructure and executing complex projects. Proven expertise in customer relationship management, scope definition, testing, and process optimization, ensuring alignment with business objectives. Proficient in server management, hardware maintenance, and network administration, complemented by a comprehensive understanding of IT systems. Committed to enhancing operational efficiency and driving organizational growth through strategic project management and innovative solutions.
Overview
4
4
Certifications
14
14
years of professional experience
Work History
Associate Consultant
Tata Consultancy Services
10.2025 - Current
- Administer enterprise Active Directory infrastructure in complex, multi-domain environments to ensure reliability and performance.
- Manage Azure Active Directory (Microsoft Entra ID), and hybrid identity environments.
- Manage Azure Active Directory (Microsoft Entra ID) and hybrid identity environments, supporting seamless user access and security integration.
- Implement identity security solutions, including LAPS and privileged access controls.
- Support Azure cloud administration and infrastructure optimization projects.
- Perform security monitoring, incident response, and risk mitigation activities.
- Configure and manage DNS, DHCP, Group Policies, and Network Policy Server (NPS).
- Manage VMware and Hyper-V virtualization platforms.
- Administer SCCM for endpoint configuration, software deployment, and patch management.
- Develop operational documentation, standard operating procedures, and technical architecture diagrams to enhance team understanding and compliance.
Manager
Capgemini
11.2021 - 10.2025
- - Managed 100+ domains worldwide as part of the AXA project, ensuring seamless Service Delivery Management and BAU Operations.
- - Oversaw the migration to Azure and effectively managed the hybrid environment, ensuring minimal disruption and maximum efficiency.
- - Successfully handled and resolved P1 and P2 issues within the environment, consistently meeting SLAs.
- - Deployed and managed group policies to streamline system configurations and enhance security measures.
- - Provided advanced technical support for systems and effectively managed incidents, resulting in a 25% increase in end-user satisfaction levels.
- - Identified and resolved DNS issues promptly, minimizing downtime and optimizing network performance.
- - Executed team audits and implemented quality enhancement measures, resulting in a 20% improvement in operational efficiency.
- - Conducted training programs to enhance team skills and improve technical proficiency by 30%.
- - Maintained accurate tracker and roster records, ensuring efficient resource allocation and utilization.
- - Introduced automation scripting to reduce manual efforts by 40% and improve operational efficiency.
Technical Specialist
HCL Technologies Limited
01.2017 - 11.2021
- - Providing high-end technical support to servers to ensure high-end-user satisfaction levels and resolve their issues promptly.
- - Overseeing 500+ Domain controllers and 3000+ member servers to ensure smooth operations.
- - Established quality standards for operational areas to enhance customer experience and ensure compliance with SLAs.
- Promoted and demoted servers as domain controllers.
- - Oversaw 500+ domain controllers and 3000+ member servers, ensuring smooth operations across the network.
- - Handling high priority incidents and calls, delivering effective solutions to clients.
- - Managing SLA adherence and daily operations, ensuring smooth functioning.
- - Managed SLA adherence and daily operations to support seamless functioning of technical services.
- - Monitoring domain controllers, active directory users, computer services, DNS, certificates, ADFS services, and various other network components.
- - Conducting team audits, maintaining trackers and rosters, and managing training for skill enhancement.
Consultant (On Contract)
HCL Infotech Ltd
12.2015 - 01.2017
- Oversaw DNS, DHCP, group policy, Exchange Server 2010, RDS, Hyper-V, and file server to maintain system performance.
- Conducted health checks on NBA rack server and storage to ensure optimal performance.
- Conducted oversight of Active Directory and backup systems to maintain data integrity.
- Established AD user accounts based on requests.
- - Monitored and backed up Exchange server to maintain data integrity.
- - Create & monitor of Hyper-V machine.
- - Migration and backup of Hyper-V.
- - Creation and monitoring of replication and cluster from DC to DR site and with Hyper-V.
- Oversaw Fortinet hardware firewall, establishing and monitoring policies to protect network traffic.
- - Handling Backup server with data protection server.
Network Security Administrator
Enest Info Soft Pvt Ltd
07.2015 - 12.2015
- - Oversaw management of Windows Server 2012 for optimal performance.
- - Managed services in Windows Server, including Hyper-V, DNS, VPN, SharePoint 2013, Exchange Server, WDS, Telnet Server, ADRMS, file server, print server, FTP server, and hosting server.
- - Manage CentOS server.
- - Managed services in Cent-OS server, including VOIP server and OS Dial server.
- - Supervised 15 members of IT team to enhance productivity.
- - Oversaw quality assurance and facilitated training for team members.
System & Network Engineer
Firemoon Studios Pvt LTD
09.2014 - 07.2015
- - Installing and managing the Windows Server 2012.
- - Manage and configure the LAN and WAN networking of the company.
- - Installing and manage the Windows Server 2012.
- - Installing and manage the Exchange server for official and non official mail.
- - Performed regular assessments of system health to identify potential issues.
- - Managed and configured LAN and WAN networking to support organizational connectivity and communication.
- - Troubleshot software-related issues to maintain operational efficiency and user satisfaction.
- - Manage and configuring the Bio-metric of finger prints for the attendance.
- - Manage and configure the Bio-metric of finger prints for the attendance.
- - Manage and configure the N-computing environment for the systems.
- - Have knowledge of ITIL (Information Technology Infrastructure Library).
Technical Shift Lead
IBM Bharti Pvt Ltd
07.2013 - 07.2014
- - Manage the User ID Management of 50 Application like CRM, Nikira, fraud management system, LAPU, All IBM Application, All Airtel Applications and many more.
- - Manage the User ID Management of 50 applications like CRM, Nikira, fraud management system, LAPU, All IBM Application, All Airtel Applications and many more.
- - Oversaw system networking operations and monitoring processes.
- - Handle the Complaint Tickets escalations.
- - Directed team efforts to maintain high-quality performance.
- - Manage the SLA (service level agreement) of the company.
Technical Coordinator
KARVY DATA MANAGEMENT SERVICES
06.2012 - 03.2013
- - Manage and handle Linux Server and Windows Server in various centers.
- - Installation and management Windows server and the Linux server.
- - Support Linux OS to run various software applications.
- - Conducted maintenance and upgrades on Linux OS to enhance system reliability. the Linux OS.
- - Executed installation and testing of Linux OS patches to ensure system integrity. Linux OS patches.
- - Develop procedures for Linux security and management.
- - Update standard policies according to environment changes and audit results
- Identify and resolve system issues in a timely manner.
- - Planned and coordinated installation, testing, and maintenance of Linux systems software and hardware. - Develop and implement disaster recovery procedures to ensure business continuity.
- - Develop and implement disaster recovery procedures to ensure business continuity.
- - Manage all technical staff of various centers and checking quality.
- - Assessed data quality before uploading to the server to maintain data integrity. of data and upload on server.
Education
B.Sc -
Lucknow University
Uttar Pradesh2011
Intermediate Certificate -
Jubli Inter College
Uttar Pradesh2008
High School Diploma -
St John's High School
Uttar Pradesh 04.2001 -
Skills
Active Directory
Azure Active Directory
Azure DevOps
Architectural Design
Group Policy Management
DNS Management
DHCP Server
Network Troubleshooting
Network Configuration
Network Policy Server
Windows/Wintel Support
VMware, Hyper-V and SCCM
Password Management(LAPS)
Certification
Global Net Plus
Timeline
Associate Consultant
Tata Consultancy Services
10.2025 - Current
Manager
Capgemini
11.2021 - 10.2025
Technical Specialist
HCL Technologies Limited
01.2017 - 11.2021
Consultant (On Contract)
HCL Infotech Ltd
12.2015 - 01.2017
Network Security Administrator
Enest Info Soft Pvt Ltd
07.2015 - 12.2015
System & Network Engineer
Firemoon Studios Pvt LTD
09.2014 - 07.2015
Technical Shift Lead
IBM Bharti Pvt Ltd
07.2013 - 07.2014
Technical Coordinator
KARVY DATA MANAGEMENT SERVICES
06.2012 - 03.2013
High School Diploma -
St John's High School
04.2001 -
B.Sc -
Lucknow University
Intermediate Certificate -
Jubli Inter College