Jas Kalyan

Senior Network & Security Architect with over 20 years of experience designing and delivering enterprise-grade infrastructure solutions across global enterprises, government sectors, and regulated industries. Jas specializes in strategic network transformation, cloud integration, and security architecture using cutting-edge technologies and platforms. Core competencies include the design and deployment of Software Defined Networking (SDN) and Software Defined Access (SDA) using Cisco ACI and Cisco DNA Center, global SD-WAN rollouts with Cisco Viptela and Palo Alto Cloud Genix, and cloud-native architectures on AWS, Azure, and Google Cloud. Jas has led complex migrations involving Cisco ISE for posture assessment and guest access, Palo Alto Panorama for centralized firewall management, and VMware NSX-T for virtualized network environments. Technical expertise spans across Layer 2/3 switching with Cisco Nexus 7000/5000 series, spanning tree protocols (STP, RSTP, MST), VXLAN, OTV, and LISP for Data Center Interconnect (DCI). I have architected secure multi-region VPC designs in AWS, integrated Palo Alto firewalls with Active Directory, and implemented AI-driven monitoring using OpsRamp and automation with ServiceNow and Terraform. Security leadership includes deploying Palo Alto Cortex, Wildfire, and threat prevention modules in cloud environments, designing Bluecoat Proxy solutions, and implementing Cisco Firepower and Cisco ASA firewalls. I have also delivered enterprise NAC solutions using Cisco ISE and Aruba ClearPass, and managed endpoint security with McAfee, Symantec, and Okta two-factor authentication systems. Project highlights include: - Etihad Airways: Global SD-WAN deployment with Cisco Viptela, DNAC integration, and SDA migration using Cisco ACI and L3Outs for traffic orchestration. This also include global roll out a Cisco Wireless solution using TrustSec, Posture checking, 802.1x authentication and guest access using captive web authentication. - Accell Group: Transition from Aruba Wireless to Cisco 9800, SD-WAN and SDA architecture deployment, and legacy network modernization. - NationalGrid: Azure cloud migration, Palo Alto firewall integration, and DevOps collaboration using Terraform and Azure ExpressRoute. - Philips Global: SD-Access migration, IoT segmentation using Palo Alto Panorama, and global team leadership for HLD/LLD documentation. - Telenor: Multi-site SDN and SD-Access architecture across South Asia, OpenStack v16 underlay design, and integration with Ansible and CEPH storage. I believe that I am trusted advisor to CTOs and senior stakeholders, translating business requirements into scalable technical solutions. I excel in producing HLDs, LLDs, and executive presentations, and have led cross-functional teams across engineering, operations, and security domains. My documentation and communication skills support governance, compliance, and strategic decision-making.

Professional technical architect skilled in designing and implementing scalable, high-performance systems. Known for strong focus on team collaboration and achieving results. Expertise in cloud architecture, software development, and IT infrastructure. Adaptable and reliable, ensuring seamless integration with evolving project requirements.

CCIE