Mohit Tiwari

Operations Associate

Noida, Uttar Pradesh, India10 yrs 4 mos experience

Highly Stable

Key Highlights

Over 10 years of experience in IT Infrastructure Management.
Expertise in Active Directory and identity management.
Proven ability to enhance system security and compliance.

Stackforce AI infers this person is a seasoned IT Infrastructure Engineer specializing in Active Directory and identity management within enterprise environments.

Contact

Skills

Core Skills

Active DirectoryIt Infrastructure ManagementGroup PolicyPatch ManagementSystem AdministrationDns ManagementUser Account ManagementIt Hardware Support

Other Skills

Account ManagementActive Directory ExperienceAntivirusAtlassian SuiteBMC Helix ITSMBMC Remedy Ticketing SystemBackup & Recovery SystemsBarracuda Spam FilterBitlockerCisco UmbrellaComputer Hardware TroubleshootingData CentersDesktop ComputersDisk ManagementDistributed File System (DFS)

About

💼 Job Profile: Active Directory & Identity Services Specialist / IT Infrastructure Engineer Experienced IT Infrastructure Specialist with over 10 years of hands-on expertise in managing Active Directory (AD), Group Policy, DNS/DHCP, and Microsoft Entra ID (Azure AD) within enterprise environments. Proven ability to maintain domain controller health, enforce secure and scalable directory structures, and support business operations through efficient identity and access management. Key responsibilities include: Active Directory replication troubleshooting, FSMO role management, and health diagnostics using tools like dcdiag and repadmin. Administration of AD objects, OU structures, security and distribution groups, privileged access control, and account lifecycle management. Advanced GPO management for system hardening, software control, and user/computer configurations. DNS/DHCP infrastructure support including dynamic updates, scavenging, forwarders, zone replication, IP scope management, and failover configuration. Microsoft Entra ID (Azure AD) administration including hybrid sync via AD Connect, Conditional Access policies, RBAC, and enforcing MFA. Expertise in disaster recovery procedures, compliance audits, directory cleanup, and login anomaly detection. Demonstrated leadership in maintaining secure, resilient identity platforms while collaborating across IT teams to ensure uptime, compliance, and operational excellence.

Experience

Solv

Assistance Manager IT

Dec 2024 – Oct 2025 · 10 mos · Noida, Uttar Pradesh, India · Hybrid

Experienced IT Infrastructure Specialist with over 10 years of hands-on expertise in managing Active Directory (AD), Group Policy, DNS/DHCP, and Microsoft Entra ID (Azure AD) within enterprise environments. Proven ability to maintain domain controller health, enforce secure and scalable directory structures, and support business operations through efficient identity and access management.
Key responsibilities include:
Active Directory replication troubleshooting, FSMO role management, and health diagnostics using tools like dcdiag and repadmin.
Administration of AD objects, OU structures, security and distribution groups, privileged access control, and account lifecycle management.
Advanced GPO management for system hardening, software control, and user/computer configurations.
DNS/DHCP infrastructure support including dynamic updates, scavenging, forwarders, zone replication, IP scope management, and failover configuration.
Microsoft Entra ID (Azure AD) administration including hybrid sync via AD Connect, Conditional Access policies, RBAC, and enforcing MFA.
Expertise in disaster recovery procedures, compliance audits, directory cleanup, and login anomaly detection.
Demonstrated leadership in maintaining secure, resilient identity platforms while collaborating across IT teams to ensure uptime, compliance, and operational excellence.

Office 365Group PolicyIT Infrastructure ManagementActive Directory ExperienceLapsWindows Deployment Services (WDS)+16

Concentrix

System Administrator

Jan 2021 – Dec 2024 · 3 yrs 11 mos · Gurugram, Haryana, India · On-site

Create, modify, disable, and delete user accounts as per joiner/mover/leaver processes
Reset passwords and unlock user accounts upon request
Move users and computers into the correct OUs
Perform daily replication health checks using repadmin /replsummary
Run dcdiag to identify and resolve domain controller health issues
Monitor account lockouts and trace source using event logs or tools
Maintain and monitor AD Sites and Services for optimal replication
Clean up stale user and computer accounts from the directory
Create and manage security and distribution groups
Delegate control to helpdesk or business units using least privilege
Update membership of privileged groups and audit changes
Check SYSVOL replication consistency across DCs
Apply or review password and lockout policies in the domain
Ensure time synchronization across domain controllers
Assist in disaster recovery testing for AD and domain services
Monitor login patterns for anomalies (brute-force, logon failures)
Verify and adjust FSMO role placement as needed
Plan and execute OU structure improvements or cleanup
Coordinate and test domain controller patching and restarts

Active DirectoryDynamic Host Configuration Protocol (DHCP)Domain Name System (DNS)Group PolicyWindows Deployment Services (WDS)RAID+6

Team computers

System Administration

Jul 2019 – Jan 2021 · 1 yr 6 mos · New Delhi Area, India · On-site

 Active Directory Backup and Restoration.
 Windows Server Patch Management via WSUS Tool.
 DHCP Reservation, Backup & Restoration.
 DNS configuration, record creation & record deletion.
 Installing and configuring FTP and File Server on servers 2012, and 2016.
 Coordination with Vendor for Server and Workstation and laptop hardware-related Issues.
 Good Experience with the ITIL Process like change Management Incidents and Problems.
 Creation/Modification and Deletion of Group Policy.
 Knowledge & and experience of troubleshooting for O365 admin, SharePoint, Teams, Azure AD.
 Store Daily Sync Check and Check the backup Scheduler of the Server. (Incremental/Daily).
 Managing Hyper V environment which includes Creating, Managing, and Configuring of VM.
 Provide Remote support to end-users & manage the MacBook.

Window 10AntivirusDomain Name System (DNS)Active DirectoryFile ServersVulnerability Management+7

Adecco

Server Engineer

Mar 2019 – Jun 2019 · 3 mos · Gurugram, Haryana, India · On-site

Create, disable, delete, or unlock user accounts
Reset user passwords and configure password policies
Create and manage security/distribution groups
Add or remove users from groups
Create, modify, or move Organizational Units (OUs)
Delegate control using OU-based delegation
Create, edit, and apply Group Policy Objects (GPOs)
Troubleshoot GPO inheritance and application issues
Monitor domain controller health using tools like dcdiag and repadmin
Ensure replication is healthy between domain controllers
Check and maintain time synchronization across domain controllers
Investigate failed logins and account lockouts
Manage DNS zones and ensure AD-integrated DNS is functioning
Monitor system state backups and verify restore readiness
Use AD Recycle Bin to restore deleted objects
Monitor Azure AD Connect sync health in the Azure portal
Run manual syncs using Start-ADSyncSyncCycle command
Troubleshoot sync errors in the Synchronization Service Manager
Investigate duplicate attribute or UPN issues
Verify and configure correct UPN and domain suffixes
Monitor password hash sync status

System AdministrationWindow 10FSRMHP Data ProtectorTroubleshootingDomain Name System (DNS)+7

Info services

System Administrator

Jan 2017 – Jun 2018 · 1 yr 5 mos · Gurugram, Haryana, India · On-site

Create, disable, delete, or unlock user accounts
Reset user passwords and configure password policies
Create and manage security/distribution groups
Add or remove users from groups
Create, modify, or move Organizational Units (OUs)
Delegate control using OU-based delegation
Create, edit, and apply Group Policy Objects (GPOs)
Troubleshoot GPO inheritance and application issues
Monitor domain controller health using tools like dcdiag and repadmin
Ensure replication is healthy between domain controllers
Check and maintain time synchronization across domain controllers
Investigate failed logins and account lockouts
Manage DNS zones and ensure AD-integrated DNS is functioning
Monitor system state backups and verify restore readiness
Use AD Recycle Bin to restore deleted objects

Windows 10Domain Name System (DNS)Dynamic Host Configuration Protocol (DHCP)FTPIEMWindows Desktop Administration+2

3i infotech ltd.

System Engineer

Jul 2014 – Dec 2016 · 2 yrs 5 mos · Noida, Uttar Pradesh, India · On-site

□ Administration of Windows 2008, 2008 R2, Windows 2012 R2.
□ Installation of Symantec antivirus, Scanning, and troubleshooting on the client end.
□ Microsoft Outlook 2010 Mail Installation, Configuration, Troubleshooting.
□ Configured and troubleshooting Network printer and Scanner like HP, Xerox.
□ Installing All Microsoft related patches.
□ Handling customer’s escalations.
□ Vendor Coordination HP/Lenovo for Hardware issues.
□ Device Lock & other Local/Network Policy updating on user Machines.
□ Bit-Locker related issue.
□ Managing and monitoring the all-technical type daily issues.
□ Responsible for site management like upgrading h/w and s/w management.
□ Handling installation & configuration of operating systems, applications, servers & workstations.
□ Troubleshooting of LAN connectivity issues.
□ Providing technical support for data and applications to clients.
□ Taking care of virus related problems, planning any activity schedule.
□ Handling day to day customer’s/Users Technical queries
□ Responsible for Daily Technical operational issues.
□ Daily Reports and team management.