Arjun Bikash Sarkar
Krakow,Poland
Summary
A position in network team where skills in Routing, Switching and Security will contribute to design, implementation and management of the IT network infrastructure. Possess the drive and ambition to meet and extend my objectives. Working for almost 20 years in this field, I have the ability and knowledge to identify and resolve varied Business Requirements and provide recommendations to Business Clients on optimizing their Business Processes Delivers network design, implementation and security support across complex data centre environments. Applies deep Routing, Switching and Security expertise to resolve technical issues, guide customers and strengthen infrastructure performance. Advises business clients on network optimisation and solution fit to meet operational requirements.
Overview
2
2
Languages
1
1
Certification
26
26
years of professional experience
Work History
Data Center – Customer Delivery Architect(AI Infra
Cisco Systems
08.2019 - Current
- Strategic Multi-Million Storage Win (FY26): Officially secured a $14M Cisco MDS (SAN Storage) deal, successfully displacing Brocade in a highly competitive enterprise account.
- Global Revenue Generation: Designed and executed complex data centre design projects for Tier-1 international clients (Vodafone, Barclays, HSBC, CANCOM), generating $1.8M in direct revenue for Cisco.
- Greenfield AI Infrastructure: Architected and deployed end-to-end, high-performance GPU-powered AI Fabric networks, optimizing throughput and eliminating bottlenecks for massive enterprise AI workloads.
Technical Consulting Engineer Data Center
Cisco Systems India
10.2011 - 08.2019
Global Technical Support & Account Management: Extensively managed high-availability enterprise networks across EMEA and APAC regions, serving as the primary technical focal point for critical account resolution.
Advanced Troubleshooting & Lab Diagnostics: Replicated intricate network behaviors and resolved complex system anomalies using advanced lab environments, ensuring minimal downtime for global clients.
Knowledge Engineering & Quality Assurance: Authored system documentation and delivered technical training programs while collaborating on corporate bug-tracking (DDTS) and product quality improvement initiatives.
Network Competency Center Engineer
Hewlett-Pacard Globalsoft Ltd
11.2007 - 09.2011
- Delivered high-level technical guidance and infrastructure engineering for Intel, H3G, and Domstolsverket.
- Owned mission-critical incident management through network troubleshooting and controlled escalations.
- Drove resolution aligned with low-latency, zero-trust security standards for maximum uptime.
Senior Customer Support Engineer
Dimension Data/NTT Global
11.2006 - 11.2007
Led large-scale network infrastructure refresh and migrations for mission-critical data centers.
Network Technical Support Specialist II
ADP India LTD
08.2003 - 10.2006
- Enterprise WAN & Infrastructure Foundations: Handled large-scale deployment, physical-layer provisioning, and performance tuning for distributed multi-site network topologies to ensure business continuity.
- High-Traffic Routing & Incident Response: Analyzed complex diagnostic logs to isolate chronic link flapping, mitigate packet drops, and resolve high-throughput routing bottlenecks for high-availability US enterprise clients.
- Global Telecom Carrier Management: Served as the primary technical escalation point for Tier-1 international providers (Verizon, Sprint, MCI), driving strict SLA compliance and major incident resolution.
Senior System Administrator at CITIBANK NA
Network Solutions LTD (IBM Company)
10.2000 - 07.2003
- Administered banking WAN infrastructure support, diagnosing issues and coordinating resolutions.
Education
BA -
University Of Calcutta
01.1997
Diploma - Information and System Management(DISM)
APTECH
CCNP - Data Center
CCNP - DEVNET
Cisco Certified Design Specialist -
Skills
- Routing
- Switching
- Security
- Cisco routers
- Cisco switches
- Cisco ACI
- NX-OS
- Multicast
- VPC
- Multisite deployment
- NDO (Nexus Dash Board Orchestrator)
- NDDB (Nexus Dashboard Data Broker / Nexus Dashboard 43)
- Telemetry
- QoS
- Presales
- Post-sales
- Network management support
- Troubleshooting
- Packet path tracing
- SDN
- GPU-powered AI Fabric
- Data center networking
- First Hop Redundancy protocols
- Layer 2/3
- VXLAN EVPN
- BGP
- OSPF
- IS-IS
- FCoE
- RoCEv2
Certification
- CCNP (Data Center)
- CCNP (DEVNET)
- Cisco Certified Design Specialist
Custom Section
- Extensive experience configuring Cisco routers and switches.
- Designed and implemented Cisco device series including 6500, 7600, Nexus 9000, and Cisco MDS 9000 series switches.
- Data center design projects for CANCOM, Vodafone, Barclays Bank, HSBC Bank (UK) bringing $1.8M revenue to Cisco.
- Secured Cisco MDS (Storage) win against Brocade; deal closed nearly $14M in FY26.
- Migration strategies from legacy data centers to Cisco ACI solutions.
- Designed ABB (Switzerland & US) Data Centers (Cisco ACI Multisite Fabric) with Checkpoint firewall integrations.
- Multicast, vPC, ACI (Single Pod & Multipod, Multisite deployment with NDO - Nexus Dash Board Orchestrator).
- Day-2 applications NDDB (Nexus Data Dashboard Data Broker / Nexus Dashboard 4.3) for telemetry data.
- NDDB – Nexus Dashboard Data Broker design for customer DCs across sites: redirect traffic via NDB (NXOS) devices; SDN-based separation of control and data plane customer traffic flow; integrates with Cisco ACI.
- Deep-dive troubleshooting: tracing hardware-level packet paths across Cisco Nexus (9K/3K/7K/6K) and Cisco ACI/NX-OS fabrics to isolate endpoint connectivity failures.
- Greenfield AI Infrastructure: architected and deployed end-to-end GPU-powered AI Fabric solutions (front-end and back-end networks).
- QoS evaluation participation for IAEA in Austria for HCI infrastructure.
- Presales activities including demos and presentations for DC segments.
Languages
Bengali
Advanced
C1
English
Proficient
C2
Interests
- Reading Books
- Yoga
- Gym
Hobbies and Interests
- Reading Books
- Listening to Music
- Watching Movies
Timeline
Data Center – Customer Delivery Architect(AI Infra
Cisco Systems
08.2019 - Current
Technical Consulting Engineer Data Center
Cisco Systems India
10.2011 - 08.2019
Network Competency Center Engineer
Hewlett-Pacard Globalsoft Ltd
11.2007 - 09.2011
Senior Customer Support Engineer
Dimension Data/NTT Global
11.2006 - 11.2007
Network Technical Support Specialist II
ADP India LTD
08.2003 - 10.2006
Senior System Administrator at CITIBANK NA
Network Solutions LTD (IBM Company)
10.2000 - 07.2003
BA -
University Of Calcutta
Diploma - Information and System Management(DISM)
APTECH