Mithun R

· Product owner and single point contact for ZTNA Cloudflare/Zscaler and Firewall Solution.

· Enable the business to innovate rapidly and achieve its goals by providing secure.

architectural patterns and capabilities

· Design and architecture and solution for SAAS based application for Network and Security

· Implemented Zero Trust Network Access using Zscaler, replacing the existing VPN.

· Lead a team of security professionals in developing and implementing security policies and procedures.

· Escalate Major incidents with Suppliers for quick resolutions and provide internal coordination, stakeholders.

· Build the Private connection with ZPA And establish the connection for all Internal Network.

· Providing the solution for Network LAN and WAN design solution and implementation report.

· Working with Project and Engineering team and provide the solution based on requirement.

· Completed End to End project responsibility and execution and Operation.

· Developed and implemented incident response procedures.

· Designed solutions to scale with organizational growth.

· Designed a secure and scalable ZTNA architecture integrating Zscaler

· Managed ZTNA(ZIA,ZPA and DLP) policy configurations for security, enhance posture and access control.

· Implemented identity-based access controls and micro-segmentation rules.

· Firewall Governance and Operation -Hands on FortiGate and Palo Alto.

· Knowledgeable in implementing threat prevention features, such as antivirus, anti-spyware, and vulnerability protection.

· Proficient in configuring, managing, and troubleshooting Palo Alto Networks firewalls, including PAN

· Familiar with configuring VPNs on Palo Alto Networks firewalls for secure remote access.

· Experienced in deploying Palo Alto Networks firewalls in on-premises and cloud environments (e.g., AWS, Azure, GCP).

· Contribute to and execute the strategy, vision, and architecture of the network security.

· Change Request and Operation Process implemented.

· Complete Review of 16regions firewalls and implemented the security features.

· Network Security operations on cloud AWS, GCP and Azure Network

· Migration Between Cloudflare and Zscaler, rebuild the infra and move users with zero downtime.

· Wireless Network setup for Zee5/global for Global Regions.

· Managed security tool operations of Cortex-XDR for endpoints.

· Developed and enforced security policies within Cortex XDR to meet organizational security requirements.

· Continuously improved the effectiveness of Cortex XDR through regular updates, patches, and configuration changes.

· Developed and implemented security policies, standards, and procedures.

· Implemented and managed security tools and technologies to protect against cyber threats.

· Provided security training and awareness programs to employees to enhance security posture.

· Managed a team of security analysts and engineers in protecting the organization's assets.

· Developed and implemented security policies, standards, and procedures.

· Implemented security controls and technologies to protect against cyber threats.

Deployed and integrated software solutions for complex IT environments, handling proprietary real-time life-critical data for hospital IT systems.

· Worked in the care support team for Isite PACS and PACS application support.

· Drove continuous improvements in implementation methodology and service offerings based on customer feedback.

· Implemented and supported network infrastructure for around 600 hospitals in the US and Canada, configuring Layer 2/3 switches such as Cisco 2960, 3560, 4500E, 6509E.

· Collaborated with customers for security certifications deployed for all client VIPs

· Addressed vulnerability issues in F5 device images, coordinating with the engineering and F5 security teams to resolve issues.

· Worked closely with the security team to identify emerging security threats and perform vulnerability assessments.

· Deployed, installed, configured, and upgraded F5 LTM for multiple hospitals.

· Captured and analysed Wireshark logs, sharing reports with customers.

· Migrated Cisco Load Balancer CSS11501 to F5 physical/virtual environments.

· Installed and configured Cisco routers (2800, 3900, 7200) and L2 & L3 switches (4560, 3750, 2960).

· Established connections between production and lab networks using Juniper firewall.

· Maximized network performance by monitoring, troubleshooting network problems, and resolving outages.

· Managed network migrations and upgraded PACS applications.

· Provided network support for VMware, database, and integration teams during study flow issues in customer networks.

· Interacted with US customers for new device implementations and configurations.

· Implemented F5 ADC and switching solutions, including virtual F5 HA configurations.

· Worked with the ServiceMax ticketing tool to resolve incidents, requests, and change requests at the customer end.

· Leading L1 and L2 Team.

· Configuration and Troubleshooting LAN, WAN, WLAN Network

· Configuration layer 2/3 switches like Cisco 2960, 3560, 4500E, 6509E.

· Working for Incident Management as well as for change Management.

· Working in Enterprise Network operation and Projects support.

· Working in DATA CENTER Infrastructure for design and implementation

· Working in Juniper firewall SSG-350, 140series for Lab Network.

· Established connection between Production Network to Lab network using firewall

· Working in Honeywell Enterprise Network.

· Implementing, design and support for Aero, Controls systems and Turbo power Labs

· Implementing, design and support for Airgap Network for testing the Camera and controls devices and outside customers.

· Network support for Global Sites: china and Malaysia and all India sites

· Performing as a Member of a team working with peers to solve/resolve issues to ensure maximum network availability and customer satisfaction

· Working with Global Application Team to support Network Issue.

· Co-ordination with customer for B2B tunnel issue.

· Configuration and Troubleshooting LAN, WAN, WLAN Network.

· Configuration layer 2/3 switches like Cisco 3560, 3750 stack switches,4500E, 6509E.

· Working for Incident Management as well as for change Management.

· Support for voice and video connect meeting rooms and conference rooms.

· Basic Installing and Configuring of Cisco Routers (3800, 3900, 7200.)

· Creating, Deleting, Modifying VLAN in distribution switches.

· Configuration Access Point 1100 , 1200 series and LWAP through Controller

· Enabling and troubleshooting LAN, WLAN and WAN to the users.

· Remotely Login to Cisco 6509E / WS-c4948 -switches using Putty to modify and change the configuration.

· Taking responsibility of severity 1, 2 & 3 issues and all kind of network connectivity issues and end-to-end responsibility until closing the incident

· Network Monitoring Tools: such as BlueCoat, Fluke, and Orion, Solar winds.

· Monitoring and Troubleshooting, all internal and External Network Devices and Links

· Solving Network Related issue remotely around 40 Philips sites across India

· Working with international Telecom services like AT&T, British Telecom, Bharthi, Reliance, and Tata Telecommunication

· Solving Network issues tickets assigned by the user and Global users (US, China, Netherlands)..

• Coordinated with ISPs to establish leased line links.
• Configured and troubleshooted leased line connections.
• Coordinated with customers and field engineers to establish VSAT and leased line links
• Configured and troubleshooted Linksys 24-port switches.
• Configured and troubleshooted VOIP devices, such as Linksys PAP2T.
• Configured and troubleshooted Cisco VLAN switches, Router 1800,2800
• Remotely accessed and monitored PCs and network stations.
• Monitored client status and generated daily reports for leased line and VSAT status.
• Managed VSAT links and VOIP connections between the hub and approximately 700 remote locations.
• Monitored leased lines using networking tools like SolarWinds.
• Monitored over 700 VSATs and 400 servers using HP Service Desk monitoring tools.
• Configured and troubleshooted VOIP phones.