Sai J Email and Phone Number
•Over 6 years of experience designing, deploying, and maintaining network and security infrastructure, with a strong focus on cloud environments, including AWS. • Expertise in layer 2 and layer 3 networking with extensive hands-on experience in configuring and troubleshooting Cisco Nexus (9K, 7K, 5K), Catalyst switches, routers, and wireless LAN controllers (WLCs). • Strong knowledge of cloud networking, including AWS services, routing protocols (OSPF, BGP), and managing network automation across global data centers. • Proficient in deploying and scaling network infrastructure using cloud-native solutions, including network security, load balancing (BIG IP F5 LTM/GTM), and VPNs across AWS environments. • Hands-on experience with SDN (Software Defined Networking) and network function virtualization (NFV), leveraging Cisco ACI and VMware NSX to enhance network agility and automation. • Experienced in scripting (Python, PowerShell) for deployment automation and integrating CI/CD tools. • Advanced knowledge of TCP/IP, IP addressing, subnetting, and VLAN management in both physical and cloud infrastructures. • Proficient in managing firewall rules, security policies, intrusion detection systems, and compliance frameworks like PCI-DSS, HIPAA, and GDPR. • Skilled in using network monitoring tools (Wireshark, Splunk, ELK stack) for proactive troubleshooting and optimizing cloud network environments.
Cohesive Digital Solutions
View- Website:
- cohesive-digital.com
- Employees:
- 7
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Senior Servicenow DeveloperCohesive Digital SolutionsHerndon, Va, Us -
Network And System EngineerCohesive Digital Solutions Sep 2024 - PresentTexas, United States• Designing and supporting the consolidation of Inbound Network center utilizing Cisco 6500, Nexus 2K, 5K and 7K infrastructure.• Configure and maintain all Palo Alto Networks Firewall models (PA 2k, PA 3k, PA 5k etc.) as well as a centralized management system (Panorama) to manage large scale Firewall deployments.• Supported daily network operations, ensuring security protocols were enforced.• Assisted in the deployment and maintenance of firewalls and conducted regular security… Show more • Designing and supporting the consolidation of Inbound Network center utilizing Cisco 6500, Nexus 2K, 5K and 7K infrastructure.• Configure and maintain all Palo Alto Networks Firewall models (PA 2k, PA 3k, PA 5k etc.) as well as a centralized management system (Panorama) to manage large scale Firewall deployments.• Supported daily network operations, ensuring security protocols were enforced.• Assisted in the deployment and maintenance of firewalls and conducted regular security audits.• Utilized Security Information and Event Management (SIEM) systems for real-time analysis and threat management.• Provided detailed reports on network security status and incident response activities.• Developed automated scripts to enhance SIEM monitoring and alerting capabilities.• Played a key role in incident response, reducing average resolution time by 20%.• Hands on experience on all software blades of Check Point Firewall. 24x7 on call step up support as a part of the safety operations team. • Conducted regular tests and simulations to ensure DoS protection measures were effective.• Integrated firewalls with other security systems to enhance overall network protection.• Collaborated with development teams to ensure security best practices were integrated into the application lifecycle.• Configured secure communication protocols, including SSL/TLS, to protect data in transit.• Customized iApps to meet specific application requirements, improving efficiency and consistency.• Conducted regular security assessments and fine-tuned WAF policies to ensure optimal performance and protection. Show less -
Network Security EngineerEbenus Design Solutions Private Limited Mar 2019 - Dec 2021Bengaluru, Karnataka, India• Designing and supporting the consolidation of data centers utilizing Cisco 6500, Nexus 2K, 5K, and 7K infrastructure.• Configure and maintain all Palo Alto Networks Firewall models (PA 2k, PA 3k, PA 5k, etc.) as well as a centralized management system (Panorama) to manage large-scale Firewall deployments.• Supported daily network operations, ensuring security protocols were enforced.• Assisted in the deployment and maintenance of firewalls and conducted… Show more • Designing and supporting the consolidation of data centers utilizing Cisco 6500, Nexus 2K, 5K, and 7K infrastructure.• Configure and maintain all Palo Alto Networks Firewall models (PA 2k, PA 3k, PA 5k, etc.) as well as a centralized management system (Panorama) to manage large-scale Firewall deployments.• Supported daily network operations, ensuring security protocols were enforced.• Assisted in the deployment and maintenance of firewalls and conducted regular security audits.• Configured and managed Core Light NDR for network traffic analysis and threat detection.• Utilized Security Information and Event Management (SIEM) systems for real-time analysis and threat management.• Provided detailed reports on network security status and incident response activities.• Developed automated scripts to enhance SIEM monitoring and alerting capabilities.• Played a key role in incident response, reducing average resolution time by 20%.• Hands-on experience on all software blades of Check Point Firewall. 24x7 on-call step-up support as a part of the safety operations team. • Collaborated with development teams to ensure security best practices were integrated into the application lifecycle.• Configured secure communication protocols, including SSL/TLS, to protect data in transit.• Customized iApps to meet specific application requirements, improving efficiency and consistency.• Conducted regular security assessments and fine-tuned WAF policies to ensure optimal performance and protection.• Configured policies on Zscaler using ad groups. Integrated Zscaler with Azure AD SCIM for ad groups and users same attributes.• Migration from Checkpoint firewall cluster to Cisco ASA 5580 firewalls in a failover pair configuration.• Managing a TACACS server for VPN user authentication and network device authentication.• Deploy, scale, and automate network across multiple global data centers supporting Amazon Web Services (AWS). Show less -
Network EngineerRamtech Engineering Services Private Limited Jul 2016 - Feb 2019Hyderabad, Telangana, India• Performed IOS upgrades/Password recovery on 2900, 3500 series Cisco Catalyst switches and 1800, 2600, 3600 series Cisco routers using TFTP. • Responsible for Cisco ASA firewall administration across global networks and for checkpoints.• Implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP, Ether channel, STP, RSTP, and MST.• Provided training and documentation to staff on using iApps for streamlined operations.• Conducted regular updates and… Show more • Performed IOS upgrades/Password recovery on 2900, 3500 series Cisco Catalyst switches and 1800, 2600, 3600 series Cisco routers using TFTP. • Responsible for Cisco ASA firewall administration across global networks and for checkpoints.• Implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP, Ether channel, STP, RSTP, and MST.• Provided training and documentation to staff on using iApps for streamlined operations.• Conducted regular updates and patches for ASM to ensure protection against the latest vulnerabilities and threats.• Designed and implemented robust application security policies to mitigate risks.• Configuring STP for switching loop prevention and VLANs for data and voice along with configuring port security for users connecting to the switches.• Integrated WAF with security information and event management (SIEM) systems for real-time monitoring and alerting.• Configured Cisco IOS Feature Set, NAT, and Simple Network management protocol (SNMP) for Network security implementation.• Supported clients with establishing high-availability applications with load distribution by F5 BigIP LTM/GTM.• Maintained redundancy on Cisco 2600, 2800, and 3600 routers with HSRP.• Got Hands-on experience in maintaining and troubleshooting RIP, OSPF, and EIGRP routing protocols.• Configured RIP and EIGRP on 2600, 2900, and 3600 series Cisco routers. • Implemented VTP and Trunking protocols (802.1q and ISL) on 3560, 3750, and 4500 series Cisco Catalyst switches. • Worked on installation, maintenance, and troubleshooting of LAN/WAN (NAT, DHCP, TCP/IP). • Configured Access List (Standard, Extended, and Named) to allow users all over the company to access different applications and block others. • Configured STP for loop prevention and VTP for Inter VLAN Routing. • Troubleshooting of TCP/IP problems and connectivity issues in a multi-protocol Ethernet environment. Show less
Sai J Education Details
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Sree Chaitanya College Of EngineeringA
Frequently Asked Questions about Sai J
What company does Sai J work for?
Sai J works for Cohesive Digital Solutions
What is Sai J's role at the current company?
Sai J's current role is Senior ServiceNow Developer.
What schools did Sai J attend?
Sai J attended Southeast Missouri State University, Sree Chaitanya College Of Engineering.
Who are Sai J's colleagues?
Sai J's colleagues are Sunila Nellutla.
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