Oct 2017 – Apr 2019 · Kolkata
Microsence India @ Taj Bengal Hotel
Network Administrator
Managed enterprise-grade network infrastructure for a 5-star hotel, ensuring 24/7 high availability. Configured Cisco switches, routers & wireless APs. Implemented VLAN segmentation separating guest and corporate networks. Performed firmware upgrades & proactive network optimisation.
CiscoVLANWirelessNetworking
May 2019 – Jan 2022 · Remote / US Clients
Wipro Limited
Senior Technical Associate
Delivered L2/L3 remote technical support to US-based enterprise clients. Managed Active Directory, DNS, DHCP, VPN & firewall configuration. Performed root cause analysis for recurring incidents and maintained high customer satisfaction scores through rapid SLA resolution.
Active DirectoryL2/L3 SupportSLAWindows Server
Feb 2022 – Jul 2023 · V4One UK
V4One UK
SME – IT Administrator
Provided expert managed IT and telecoms support. Handled email migrations (IMAP, Office 365), remote IT support, CCTV, intercoms, patch management across Windows, Mac OS & Windows Server, and early cloud work on AWS & Azure.
Office 365AWSAzurePatch Mgmt
Aug 2023 – Aug 2024 · V4One UK
V4One UK ↑ Promoted
Manager – Desk Support
Led a team of IT specialists. Managed Office 365 & Windows Server environments for high availability. Standardised patch management, endpoint security (Kaspersky, Microsoft Defender), Group Policy management, and email migrations across the MSP client base.
Team LeadEndpoint SecurityGroup PolicyRMM Tools
Aug 2024 – Jun 2025 · V4One UK
V4One UK ↑ Promoted
Manager – Aftercare
Defined SLA/KPI frameworks achieving 98%+ compliance. Led onboarding and cloud migration projects for SME and enterprise clients. Managed 500+ endpoints and 15+ production servers, achieving a 41% reduction in recurring infrastructure costs. Mentored junior engineers in cloud, M365, networking & security.
SLA/KPICloud MigrationMentoringCost Optimisation
Jun 2025 – Present · V4One UK
V4One UK ↑ Current Role
Head of IT & Client Aftercare
Architected and managed multi-cloud environments (AWS & Azure) supporting production workloads with 99.9% uptime. Led L3 cloud infrastructure troubleshooting including VPC design, IAM governance, EC2/VM optimisation & firewall security hardening. Orchestrated monthly billing runs, cross-functional team management, and client escalation resolution.
AWSAzureVPCIAMHead of ITPfSenseSonicWall