Harishankar V

Senior IT Infrastructure, Network, and Data Center Professional with 17+ years of experience supporting enterprise environments across India, Japan, and Malaysia. Hands-on expertise in server hardware installation, rack and stack activities, hardware diagnostics, network cabling, Cisco networking, Windows/Linux administration, and data center operations. Experienced in troubleshooting server, storage, and network infrastructure within mission-critical 24/7 environments.

Strong background in incident management, infrastructure support, and Japanese bilingual customer engagement.

Senior Analyst – Network Operations - HCL Technologies - Kuala Lumpur, Malaysia

(2025-01)

Client: Cisco Japan (TAC Operations)

• Provide TAC support for Cisco Catalyst switches
• Perform LAN switching, VLAN configuration, and device implementations
• Troubleshoot IOS, hardware, and connectivity issues using CLI and Wireshark
• Execute Cisco Smart Licensing and policy-based licensing
• Perform IOS upgrades via CLI, TFTP, and USB
• Support Japanese-language technical operations
• Collaborated with IT Infrastructure, Network Engineering, Compliance, and SOC teams to ensure consistent security enforcement, monitoring, visibility, and threat prevention
• Supported junior engineers through technical guidance, troubleshooting assistance, knowledge sharing, and process/documentation improvements

IT Support Lead - Creative Synergies - Tokyo, Japan

(2024-09 - 2024-12)

Client: Toyo Engineering

• Planned rack space, cabling paths, and data center readiness
• Supported Tier-2 data center design and operations
• Assisted in planning, deployment, and maintenance of Microsoft Intune policies for secure endpoint management, device compliance, configuration baselines, and security controls
• Supported the integration and continuous improvement of Intrusion Prevention Systems (IPS) across on-premises and cloud network environments
• Supported Network Access Control (NAC) integration with endpoint and network security infrastructure, including Cisco ISE, 802.1X, AAA, and endpoint authentication
• Supported network security technologies including Palo Alto, Fortinet, Cisco, and Check Point firewalls, with focus on policy review, troubleshooting, access control, and network segmentation
• Worked with SASE and secure access technologies, including Zscaler, Prisma Access, and Netskope, supporting secure internet and application access
• Supported Secure Web Proxy and URL Filtering technologies such as Zscaler, Forcepoint, and Blue Coat/Symantec
• Supported IPS platforms including Palo Alto Threat Prevention, Cisco Firepower IPS, and Fortinet IPS, including alert analysis, signature review, and security policy tuning
• Reviewed and refined firewall rules, segmentation policies, security policies, and IPS signatures to strengthen network access security and reduce unnecessary exposure
• Supported monitoring and investigation of security alerts using Microsoft 365 Defender, assisting with incident investigation, threat analysis, and remediation activities

Assistant Manager – Infrastructure Operations - MetLife Global Operations - Noida, India

(2021-05 - 2024-08)

• Managed enterprise server infrastructure (Windows/Linux) and data center operations
• Handled Disaster Recovery (DR) procedures and readiness
• Administered Trellix (McAfee) ePO, vulnerability analysis, and endpoint security
• Led endpoint migrations from VSE to ENS
• Provisioned Azure VMs and supported application deployments
• Implemented Guardium patching and HTTPS security certificates
• Managed ITIL processes using ServiceNow
• Created SOPs and KB documentation in Japanese and English

Venue IT Technology Lead - Pasona Tech - Tokyo, Japan

(2020-03 - 2021-01)

Tokyo 2020 Olympics Project & Amazon Data Center

• Managed IT assets across Olympic venues
• Performed server rack mounting and decommissioning
• Coordinated with vendors for data center readiness
• Supported LAN, routers, switches, UPS, and monitoring tools
• Managed planned outages, alert suppression, and troubleshooting

Technical Service Engineer - Fujitsu India Pvt. Ltd. - Chennai, India

(2018-02 - 2020-03)

Client: Daiichi Sankyo (Japan)

• Provided 24/7 Japanese support service desk operations
• Managed AD users, DHCP, backups, and Windows server troubleshooting
• Supported project transitions and data center build activities
• Coordinated with Japan onsite teams and vendors
• Managed incidents and changes using ServiceNow

Technology Analyst – Network Support - Infosys Ltd - Bangalore, India

(2016-09 - 2018-02)

Client: Daimler Japan

• Supported LAN operations, VLAN configuration, and switch management
• Monitored network infrastructure using HP NNMi
• Provided L1 support for Cisco switches and routers
• Acted as bridge support between Japan and offshore teams

Senior Technical Support Engineer – Japan Operations - Xchanging Solutions - Bangalore, India

(2015-09 - 2016-09)

Client: Red Bull Japan

• Supported project transition and stabilization for Japan IT operations
• Provided remote enterprise support for Windows and macOS users
• Managed ITIL processes via ServiceNow
• Coordinated with Lenovo Japan engineers
• Supported Japanese OS environments and maintained asset documentation

Network Engineer – Japan Infrastructure Operations - Nihon Technology Pvt. Ltd. - India / Japan

(2012-11 - 2015-09)

• Managed LAN/WAN operations and SonicWall firewall administration
• Implemented NAT policies and security rules
• Administered Windows Server, Active Directory, DHCP, and GPO
• Supported bilingual engineer training and acted as technical interpreter
• Ensured high availability of network and server infrastructure

Customer Support & FMS Engineer - Multiple Companies

(2008 - 2012)

Early Career roles with: CMS Infosystems (IBM – RBS Project), Redington India Ltd (Unipres India Pvt. Ltd - IT Support Executive), Galaxy Office Automation Pvt. Ltd

• Windows Server and desktop administration
• Firewall management (SonicWall)
• Desktop and server support
• Imaging
• Antivirus deployment
• Backup solutions
• Vendor coordination for data center projects

BCA - Computer Science - Madras University (2012)

Diploma - Electronics & Communication Engineering - SRM Polytechnic (2007)