Microsoft 365 & Entra ID
M365, Exchange Online, Entra ID, MFA, Conditional Access, users, groups and identity troubleshooting.
MICROSOFT INFRASTRUCTURE · SYSTEM ADMINISTRATION
Microsoft infrastructure.
Built to run reliably.
IT professional with 14+ years of overall experience spanning technical support, system administration, infrastructure operations and troubleshooting. Currently focused on Windows Server, Active Directory, Microsoft 365, Entra ID, Hyper-V, networking, backup and PowerShell automation.
14+ yearsOverall IT experience
35+Windows servers
50+Hyper-V VMs
Hands-onTechnical delivery
Open to opportunities in system administration, Microsoft infrastructure, Microsoft 365 / Entra ID and hybrid cloud administration.
Current roleSystem Administrator
Core stackWindows · M365 · Hyper-V
LocationMumbai, India
01 / ABOUT
I like solving infrastructure problems.
My career started in technical support and progressed into system administration and infrastructure management. I now work across Windows Server, Active Directory, Microsoft 365, Entra ID, Hyper-V, firewalls, networking, backup and operational automation.
I work best in hands-on environments where problems need to be diagnosed, tested and resolved methodically. I am comfortable researching unfamiliar issues, validating possible solutions and carrying them through to a working outcome.
I am extending that on-premises experience into Azure administration and Microsoft hybrid infrastructure, with a focus on practical cloud resource deployment, identity and operational support.
02 / AREAS OF EXPERTISE
Technical focus areas developed through hands-on administration, infrastructure support, troubleshooting and operational improvement.
Windows Server & Active Directory
Windows Server, AD DS, DNS, DHCP, Group Policy, permissions and identity infrastructure support.
Hyper-V, Backup & Recovery
Hyper-V administration, VM operations, replication, Veeam backup workflows and recovery support.
Firewall, VPN & Network Support
Sophos/SonicWall administration covering NAT, VPN, access rules, VLANs and connectivity.
PowerShell Automation
PowerShell workflows for repeatable Windows, AD and Microsoft 365 administration.
Infrastructure Operations
Incident troubleshooting, maintenance, documentation, backup checks and reliable day-to-day operations.
03 / TECHNICAL SKILLS
Core technologies and infrastructure I have worked with.
Microsoft
Windows Server, Microsoft 365, Active Directory and identity administration.
Virtualization
Hyper-V VM deployment, clustering, replication and migration.
Networking & Security
DNS, DHCP, VLANs, NAT/VPN, firewall rules and network segmentation.
Automation
PowerShell and Task Scheduler for repeatable Windows administration and automation tasks.
Azure Administration
Expanding practical skills in Azure resource management, storage and networking while preparing for AZ-104.
04 / SELECTED PROJECTS
Selected hands-on infrastructure work and practical implementations.
01
Hyper-V & VM Deployment
Virtual machine setup & deployment
Deploy Hyper-V virtual machines based on infrastructure requirements. This includes creating a reusable master VM and deploying role-based VMs such as Domain Controller, File Server and Database Server.
02
Active Directory Deployment
Windows identity infrastructure
Built Active Directory from the ground up, including Domain Controller deployment and the supporting Windows identity environment. The work includes Active Directory, Group Policy and DNS.
03
Veeam Backup Implementation
Backup & disaster recovery
Implemented Veeam backup for virtual infrastructure and supported backup, recovery and disaster recovery requirements for the environment.
04
Sophos / SonicWall Firewall Migration
Firewall administration & security
Worked on firewall migration and administration, including NAT, VPN, access rules and network connectivity between infrastructure segments.
05
Network Segmentation
VLAN & infrastructure segmentation
Worked with VLAN-based segmentation and firewall controls to separate infrastructure and control communication between network areas.
06
PowerShell Administration & Microsoft 365 Automation
Practical scripting & administration
Worked on PowerShell workflows for two practical administration tasks: user onboarding, and Microsoft 365 license/mailbox-based group management. The onboarding workflow reduced one process from approximately 20 minutes to under 3 minutes. The second workflow checks Microsoft 365 users for license and mailbox status, compares the results with on-premises AD, and updates an AD group so only users with qualifying mailboxes remain members.
05 / POWERSHELL & AUTOMATION
Practical scripting for administration.
I use PowerShell to automate repeatable Windows, Active Directory and Microsoft 365 administration tasks. I work with existing scripts, adapt them to requirements, build new workflows, test them and troubleshoot issues until the process works as intended.
I have worked on user onboarding automation as well as a Microsoft 365 workflow that checks license and mailbox status and keeps an on-premises AD group aligned with mailbox eligibility.
01 / USER ONBOARDING
~20 min → <3 min
Reduced the time required for a user onboarding workflow through PowerShell automation.
02 / MICROSOFT 365 & AD
License + Mailbox → AD Group
Checks Microsoft 365 users for license and mailbox status, compares the results with on-premises Active Directory, and updates the appropriate AD group based on mailbox eligibility.
06 / EXPERIENCE
My career path from technical support into system and infrastructure administration.
DEC 2023 — PRESENT
System Administrator
NHK Technologies · Navi Mumbai, Maharashtra
- Manage 35+ Windows servers across production and development environments, including Active Directory, Group Policy, DNS and DHCP.
- Support Microsoft 365 and Entra ID services, including Exchange Online, MFA and Conditional Access.
- Administer 50+ Hyper-V virtual machines with backup, replication and disaster recovery requirements.
- Configure and maintain Sophos and SonicWall firewalls, including NAT, VPN and access rules.
- Work with VLAN-based network segmentation and firewall controls to separate infrastructure and control traffic.
- Develop PowerShell automation for user onboarding and other administration tasks; one onboarding workflow was reduced from approximately 20 minutes to under 3 minutes.
- Troubleshoot server, network and identity issues and handle day-to-day support requirements.
OCT 2021 — OCT 2022
Systems & DevOps Support Engineer
Imaginativo Infotech Pvt. Ltd. · Durgapur, West Bengal
- Provided CI/CD and build/deployment support for application environments.
- Worked with PowerShell automation for repeatable administration and support tasks.
- Supported Azure DevOps administration and related deployment workflows.
MAY 2020 — SEP 2021
Freelance Web & Systems Support
Aauencoders.com · Durgapur, West Bengal
- Maintained and supported websites, hosting environments and basic server configurations.
- Handled troubleshooting, updates, backups and performance-related tasks.
- Provided technical support and minor automation for client environments.
FEB 2018 — APR 2020
System Administrator
Proteligen Marketing Pvt Ltd. · Kolkata, West Bengal
- Installed and configured workstations, user accounts and server access.
- Monitored system performance and performed routine checks to maintain availability.
- Managed daily data uploads and reporting for dialer campaign operations.
- Diagnosed and resolved hardware, software and network connectivity issues.
APR 2015 — JAN 2018
Computer Sales & Service
Multi Computech Systems · Andal, West Bengal
- Advised customers on computer hardware and software solutions.
- Configured and deployed desktop systems based on client requirements.
- Provided in-person and remote technical support and troubleshooting.
- Assisted clients with product selection and technical guidance.
JUL 2011 — MAR 2015
Technical Support / Team Lead Responsibilities
Wizard E-Marketing Pvt Ltd. · Kolkata, West Bengal
- Started in a customer-facing role and moved into internal technical support after the team identified my technical background.
- Handled inbound technical support issues and day-to-day troubleshooting.
- Later took team-lead responsibilities, supporting a team of technicians with technical issues and daily operations.
- Monitored team performance, prepared operational reports and helped train team members.
07 / CAREER DIRECTION
Microsoft hybrid infrastructure.
I am building on established Windows and Microsoft infrastructure experience with Azure administration, keeping identity, servers, automation and operational reliability at the center of my career path.
Senior System AdministratorMicrosoft 365 / Entra AdministratorWindows Infrastructure EngineerAzure / Cloud Administrator
08 / EDUCATION & DEVELOPMENT
Education, certification and professional training.
HIGHEST FORMAL EDUCATION
BSc IT
Kuvempu University · 2011
CERTIFICATION
Microsoft AZ-104
In Progress
COURSE
GNIIT
NIIT · 2008–2011
09 / PROFESSIONAL LINKS
Professional profile
For interview opportunities and professional enquiries, use the links below. This portfolio is focused on my technical background, selected work and career experience.