Jayasimha G

Results-driven IT Infrastructure and Systems Administrator with 13+ years of hands-on experience managing end-to-end IT environments for organizations of 50 to 300+ users. Proven expertise in server administration, AWS cloud infrastructure, networking, endpoint security, and IT operations. Skilled in user account management, software licensing, vendor and AMC coordination, and cloud cost optimisation.

Demonstrated ability to reduce AWS costs by 20% and maintain 99%+ system uptime. Dependable single point of contact for all IT operations and escalations.

Lead IT Infrastructure Engineer - Roombr Technologies Pvt Ltd (FKA Virtulive Technologies Pvt Ltd) - Bengaluru, India

(2022-06)

• Architected and deployed complete IT infrastructure for a new office including servers, networking, CCTV surveillance, UPS systems, telecom, and end-user equipment, delivered on time and within budget.
• Administered Windows Server environments including Active Directory, DNS, DHCP, and Group Policy for 200 to 300 users across multiple business units and locations.
• Managed VMware ESXi cluster hosting 25+ VMs for 200 users with 99.9% uptime, overseeing VM lifecycle and capacity planning.
• Built and managed AWS cloud environments using EC2, VPC, Security Groups, Auto Scaling, IAM, and Route 53; handled instance provisioning, scaling policies, and access control.
• Conducted AWS cost analysis using Cost Explorer and Trusted Advisor; implemented EC2 rightsizing, eliminated unused resources, and migrated eligible workloads to Reserved Instances, achieving a 20% reduction in monthly AWS infrastructure costs.
• Monitored cloud infrastructure health and performance using CloudWatch; configured alerts and automated responses to reduce manual intervention.
• Handled complete IT asset lifecycle including procurement, tracking, and maintenance of laptops, mobiles, printers, scanners, and project equipment across office and field locations.
• Managed software licenses including MS Office 365, AutoCAD, and Antivirus solutions; coordinated renewals and ensured compliance.
• Provided remote troubleshooting and IT support across multiple office and project site locations, serving as primary escalation point for critical incidents.
• Administered user accounts, email creation, and access control across Active Directory and Google Workspace environments.
• Coordinated with vendors, ISPs, and AMC partners for hardware and software support, maintenance contracts, and timely resolution of service issues.
• Administered Trend Micro XDR/EDR platform across 200+ endpoints, managing threat detection, alert triage, and incident response workflows.
• Built and maintained backup and disaster recovery procedures, reducing data loss exposure across critical systems.
• Maintained infrastructure SOPs, asset inventories, and technical documentation.

Senior System and Network Administrator - Trident Techlabs Pvt Ltd - Bengaluru, India

(2012-09 - 2022-05)

• Managed enterprise IT systems over a 9+ year tenure, supporting desktops, laptops, servers, printers, scanners, and business applications across the organization.
• Administered Windows Server, Active Directory, and Microsoft 365 environments, ensuring high availability and security compliance.
• Managed user accounts, email creation, and access control; enforced access management and security policies.
• Maintained software licenses including MS Office, Antivirus, and AutoCAD; coordinated with vendors and AMC partners for hardware and software support.
• Performed system monitoring, scheduled backups, and maintained disaster recovery plans to safeguard business continuity.
• Managed UPS systems and network infrastructure (LAN/WAN) for sustained uptime and rapid fault resolution.
• Delivered Tier 1 and Tier 2 IT support; acted as escalation point for complex infrastructure issues.
• Coordinated hardware procurement, software licensing, and strategic vendor relationships.

System and Network Administrator - Kateel Engineering Industry Pvt Ltd - Bengaluru, India

(2011-07 - 2012-09)

• Supported complete IT infrastructure for 50 to 75 users across production and office environments including servers, networking, CCTV, and UPS systems.
• Managed file servers, access controls, and shared storage; performed OS installations, upgrades, and security patching.
• Handled IT asset tracking including laptops, printers, and peripherals; assisted with LAN and Wi-Fi deployment and troubleshooting.
• Executed backup routines, monitored server performance and network availability, and provided end-user IT support.

Bachelor of Commerce - Commerce - Bangalore University

SSLC - Karnataka Secondary Education Examination Board