SWANDIP
RANJAN
DHAR
CONTACT
*******@*****.***
Bengaluru, India
https://www.linkedin.com/
in/swandip
CORE SKILLS
WORK EXPERIENCE
PROFILE
Network Architect with 18+ years of experience designing and troubleshooting large-scale datacenter, cloud and AI infrastructure. Deep expertise in BGP/OSPF, EVPN/VXLAN, resilient network design, network security and hybrid-cloud architectures. Experienced in developing HLD/LLD, architecture standards, observability and telemetry solutions across Cisco, NVIDIA, Juniper, SONiC, Azure, AWS and GCP, with working experience in Kubernetes networking, Python, Ansible, Terraform and CI/CD. Network Architect AI Network, Zoom
AI/ML Networking &
Architecture
Datacentre Network &
Architecture
Network Architecture
Cloud & Network Security
Cloud Network &
Architecture
Cloud Infrastructure
Cloud Migration
AWS, Azure, GCP
Customer Relationship
Management
Technical Advisory
Stakeholder Management
Leadership
People Management
Project Management
Vendor Management
Strategy
Architected and optimized 400G Ethernet AI fabrics for low-latency GPU training and inference workloads.
Led end-to-end AI infrastructure deployments, including network architecture, cabling, optics, power, cooling and production readiness. Partnered with vendors, ISPs and data center providers to deliver AI infrastructure projects within quality, cost and timeline objectives. Designed scalable AI/HPC and hybrid cloud network architectures across OCI, AWS, Azure and GCP, delivering over $900K in infrastructure cost savings.
Developed resilient network architectures supporting high- performance AI workloads, distributed storage and cloud connectivity. Established network architecture standards and security best practices for AI infrastructure.
03/2022 - 01/2026
Senior Cloud Network Engineer, Microsoft 01/2021 - 03/2022 Collaborated with customers to gather requirements and successfully onboard large-scale AI/HPC environments to Azure. Led migration of OpenAI, NASDAQ and confidential government HPC platforms to Azure, integrating NVIDIA InfiniBand, Cumulus Linux and GPU infrastructure.
Led a multidisciplinary team of Software and Network Engineers delivering AI infrastructure and cloud networking solutions. Served as the Cloud Networking SME for AI platform deployments, advising on cloud networking, architecture and migration strategies. Designed and automated scalable Azure network architectures, improving reliability, scalability and operational efficiency. Implemented network observability and telemetry solutions to improve performance monitoring, availability and operational visibility.
Network Architect, Together AI 03/2026 - 9/2026
Architect large-scale 400G AI datacenter fabrics using SONiC, NVIDIA Ethernet/InfiniBand, RDMA/RoCE, spine-leaf and rail-optimized architectures, aligned with NVIDIA design standards for high- performance GPU connectivity.
Designed GPU network architectures for Yotta (India) – 10,000 GPUs, MD1 – 16,000 GPUs and OH1 – 10,000 GPUs, including BGP EVPN/VXLAN, ECMP, lossless Ethernet, PFC/ECN/QoS, Kubernetes and storage connectivity.
Collaborate with technology vendors NVIDIA, HPE, Cisco, Juniper and Arista on architecture and new hardware/platform evaluation, and with datacenter providers IREN, 5C and Chronoscale on infrastructure, interconnect design and production readiness; develop HLD/LLD and architecture standards.
Architecture
HLD, LLD, DTD, Technical Documentation,
Architecture Roadmaps, MOP/RFP/RFQ/RFI, BOM,
Cost Optimization, Supercomputing & AI
Infrastructure Architecture, Nvidia Reference
Architecture
AI/HPC
Networking
NVIDIA InfiniBand, RDMA, RoCEv2, GPUDirect
RDMA, High-Speed Ethernet (100/200/400G/800
G), Fat Tree, Rail/Mini-Rail Design, Parallel File Systems, Spine-Leaf architectures, AI fabric design Switching &
Routing
NVIDIA Spectrum and Cumulus switches, UFM, Cisco
Nexus/Catalyst, Juniper QFX/MX/SRX, Arista
Switches, Dell
HPC Compute
NVIDIA GPU platforms, GPU cluster design, HPC
infrastructure, AI Factory architectures
Networking &
Security
SONiC, Cumulus Linux, HPE Slingshot, Palo Alto,
Fortinet firewall, EVPN, VXLAN, BGP, OSPF, VRF,
Cisco ACI
Cloud Technogies
Azure: VNet, vWAN, ExpressRoute, Private Link,
Firewall, Load Balancer • AWS: VPC, Transit
Gateway, Direct Connect, Route53, EC2, S3 • GCP:
Interconnect, VPC, Cloud DNS, Load Balancing
Automation Python, Ansible, Terraform, GitHub, CI/CD English (Fluent)
Hindi (Fluent)
LANGUAGES
Sr.Network Engineer, Quintiles Technologies
Directed facility and IT projects, ensuring budget and timeline adherence.
Developed network design documents and implemented optimal network topologies.
06/2012 - 08/2015
Network Engineer, Cisco Systems
Designed and implemented Cisco internal and partner networks across Asia Pacific.
Supported network expansions, relocations, and decommissions, ensuring minimal downtime.
04/2006 - 03/2012
CERTIFICATION
AWS Solution Architect-
Associate
AWS Architect Professional
AWS Certified Advanced
Networking - Specialty
Microsoft Certified: Azure
Fundamentals
Microsoft Certified: Azure
Administrator Associate
Designing and Implementing
Microsoft Azure Networking
Solutions
GCP Professional Cloud Architect
Cloud
TOGAF
CCIE Datacenter, Cisco
CCNP (Routing and
Switching), Cisco
CCNA, Cisco TECHNICAL SKILLS
MBA, Liverpool Business School
Post Graduate Programme in
Management (PGPM), IMT
Gaziabad
BSC-IT, Kuvempu University
EDUCATION
AI/ML
NVDIA AI OPS
Managed Adobe's datacenter network, ensuring uptime and stability across global datacenters.
Led network upgrades and migrations, including Hadoop, SAP & HANA applications, and DCI implementation using VxLAN Datacenter Network Architect, Adobe 08/2017 - 04/2020 Principal Network Engineer, Walmart Labs 09/2015 - 08/2017 Managed data center network operations, including design, integration, and disaster recovery.
Led CAPEX budget management, vendor negotiations, and cost- saving initiatives.