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Tanmoy Sarkar

@tanmoysarkar

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I improve enterprise IT support through automation, Microsoft 365, and service management.

India

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What I'm looking for

I'm looking for IT support, service desk, systems administration, or CloudOps work where I can improve SLA performance, automate routine operations, strengthen identity and endpoint security, and deliver customer-first technical support.

I've delivered Tier 1 and Tier 2 IT support across Amazon, Infosys supporting Intel, ATOS India, CMS IT Services, and Anupama Construction. I resolve hardware, software, connectivity, identity, and Microsoft 365 issues remotely and onsite.

At Amazon, I managed Active Directory, Windows Server, Exchange, SharePoint, and Teams while improving SLA adherence and helpdesk efficiency. My troubleshooting documentation reduced solution time by 36% and increased ticket closure by 41%.

As an independent IT consultant, I've improved Azure monitoring uptime by 28%, migrated Active Directory to Azure AD with zero downtime, and built PowerShell automation that reduced onboarding time by 40%.

Experience

Work history, roles, and key accomplishments

Current

Independent IT Consultant

Current

Self-Employed

May 2025 - Present (1 year 4 months)

Provided freelance IT consulting services including cloud infrastructure optimization, Active Directory migration, remote workforce enablement, automation, and network security hardening for various clients.

Azure Active Directory Microsoft 365 Teams Endpoint Security PowerShell ServiceNow Network Security

IT Support Analyst

Amazon

Aug 2021 - May 2025 (3 years 9 months)

Provided end-user IT helpdesk support, resolving hardware, software, and connectivity issues while improving SLA adherence. Managed Active Directory, Windows Server, and Microsoft 365 services, and developed PowerShell automation scripts to streamline helpdesk tasks.

Active Directory Windows Server Microsoft 365 Exchange SharePoint Teams PowerShell Incident Management Root Cause Analysis SLA Management Endpoint Security Patch Management

Service Desk Engineer

Infosys

Aug 2020 - Aug 2021 (1 year)

Delivered Tier 1/Tier 2 technical support to global teams, handling escalations and ensuring SLA compliance. Resolved issues related to network connectivity, Active Directory, and Microsoft 365 applications, and improved incident response efficiency through knowledge base documentation.

Tier 1 Support Tier 2 Support Active Directory Microsoft 365 Network Troubleshooting Incident Management SLA Management Knowledge Base

Network Service Engineer

ATOS India

Mar 2020 - Jun 2020 (3 months)

Set up and installed network equipment including routers, switches, firewalls, and wireless access points. Performed routine maintenance, firmware upgrades, and capacity planning, and diagnosed and resolved network problems and outages.

Network Troubleshooting Routers Switch Firewalls Access Points Firmware Capacity Planning Network Security

Customer Support Engineer

CMS IT Services

Jan 2019 - Dec 2019 (11 months)

Provided hardware, software, and application support for end-users, resolving issues quickly and effectively. Designed a software algorithm to automate analysis of customer satisfaction and training effectiveness, and supported installation and acceptance testing of specialized medical equipment.

Hardware Support Software support Application Support Training Effectiveness

System Engineer

Anupama Construction Pvt. Limited

Feb 2017 - Mar 2018 (1 year 1 month)

Administered IT infrastructure including server maintenance, system upgrades, and backup operations. Supported network and hardware troubleshooting, standardized and automated routine IT processes using scripting, and conducted root-cause analysis of service interruptions.

Upgrades Backup Operations Network Troubleshooting hardware troubleshooting Scripting Root Cause Analysis