Hirak Dey
Bangalore
Summary
A result oriented IT professional with over 10+ years of experience in System Administration and virtualisations to delivering actionable insights , strong foundation in creating and managing interactive visualizations , developing data models , Seeking compliant leverage to ensure optimal performance , cognitive scalability and security enhancement to IT Infrastructure of the reputed organisations .
Overview
10
10
years of professional experience
Work History
Consultant
Deloitte Touche Tohmatsu India LLP
Kolkata
08.2025 - Current
- Configured and managed Apache Tomcat Server 9.0, providing a lightweight web server environment for executing Java code, implementing core Java technologies, and automating tomcat log rotation; prepared and presented process documentation to developers.
- Recommended and Introduced an open-source log monitoring tool as per the client's requirement using Elasticsearch, Kibana, logstash , winlogbeat and filebeat data processing pipelines to present a clear system performance visibility, documented the process and shared to the datacenter team .
- Providing feasible workaround and recommendation to enhance Windows server 2012R2, 2016, 2019 & 2022 performance and upgrade scalability in production environment .
- Installing Microsoft Security Updates on every cycle , Upgrading environmental Components , Configuring and modifying Security and Registry Settings , remediating reflected Security Vulnerabilities post Server Health Check .
- Created, renewed, installed, and imported SSL self-signed certificates with SHA256 hash algorithm; updated GPO and Active Directory control/access permissions based on client requirements.
- Prepared process document of system , security , application log shipping through powershell script using SMB and NFS share to the centralised log collector server after successful testing .
Technology Analyst
Infosys Limited
01.2019 - 05.2025
- Completed Azure and AWS account setup to raise readiness for deployment.
- Owned VPC and VNet builds to standardise environment connectivity.
- Planned test and production migrations carefully to minimise disruption.
- Defined per-environment subnets to strengthen network separation controls.
- Administered Windows Server 2012 R2-2019 as TA to uphold platform availability.
- Governed change and incidents through ServiceNow to maintain compliance.
- Directed VM troubleshooting across vSphere 6.5 6.7 7.0 to cut downtime.
- Drove remediation for BSOD, PSOD, and page file failures to prevent instability.
- Managed disk expansion and cluster failover impacts to accelerate recovery.
- Accounted for RDP fixes and failback corrections to remove access blockers.
- Applied Windows and VMware platform changes to uphold SLA performance.
- Coordinated with vCenter, ESXi, and HA/DRS to strengthen reliability practices.
Senior System Administrator
IBM India Private Limited
02.2016 - 12.2018
- Own Windows Server platform administration to reduce service disruption as senior engineer.
- Lead ServiceNow change and incident management across environments to raise delivery confidence.
- Define vSphere 6.0 governance standards across hosts and virtual machines to improve reliability.
Education
B.Tech - Computer Science Engineering
Pailan College Of Management & Technology
Kolkata01-2012
Skills
- Windows Administration
- VMware Administration
- Cloud Infrastructure Solutions
- Communication
- Collaboration
- Team Coordination
- Problem Solving
- Technical documentation
- Performance monitoring
- Critical analysis
Languages
English
Hindi
Bengali
Custom
Hirak Dey, 1990-11-16, Indian, Shantipura Main Road, 2nd Cross, Electronic City Phase 2, Bangalore, Karnataka, 560100, Suriyasen Nagar, Block 2, Khardaha, West Bengal, 700117, +91-9830602506, deyhirak84@yahoo.com, https://www.linkedin.com/in/hirak-dey-157458a4/
Timeline
Consultant
Deloitte Touche Tohmatsu India LLP
08.2025 - Current
Technology Analyst
Infosys Limited
01.2019 - 05.2025
Senior System Administrator
IBM India Private Limited
02.2016 - 12.2018
B.Tech - Computer Science Engineering
Pailan College Of Management & Technology