Ansuman Kar

Senior telecommunications and network engineering professional with 19+ years of experience supporting, validating, integrating and troubleshooting large-scale service-provider IP/MPLS and optical transport networks. Deep experience with BGP, OSPF, MPLS, VPNs, VLANs, QoS, TCP/IP, Carrier Ethernet, DWDM/OTN and Nokia platforms including SR OS, 7750 SR, 7450 ESS, 1830 PSS and NSP/5620 SAM. Strong customer-facing background owning complex technical issues through investigation and resolution, coordinating across engineering and customer teams, documenting network behavior, and supporting service delivery and operational readiness in multi-vendor environments.

NSP Automation Business Engineer - NOKIA

(2020-10)

• Lead customer-facing network automation and orchestration engagements across service-provider IP/MPLS and multi-domain network environments.
• Troubleshoot complex network, platform, workflow and integration issues, driving structured fault isolation and root-cause analysis with customer and engineering teams.
• Design and validate Nokia NSP Workflow Manager and Intent Manager solutions and integrate network-management platforms with OSS/BSS systems through REST/SOAP APIs.
• Support technical delivery from requirements and architecture discussions through PoCs, validation, deployment readiness, documentation, training and operational handover.
• Maintain clear customer communication during complex technical investigations and coordinate across stakeholders to progress issues to resolution.

Senior Network Engineer, Professional Services - ERICSSON

(2017-03 - 2020-10)

• Delivered network assurance, integration and automation solutions across IP, optical transport and cloud environments for telecommunications customers.
• Investigated network and service issues across multi-vendor environments, performing root-cause analysis and coordinating resolution with customer, engineering and development teams.
• Supported architecture discussions, implementation, validation, operational troubleshooting, documentation and customer knowledge transfer.
• Worked directly with customer engineering and operations teams in technically demanding service-provider environments.

Senior Technical Specialist, 5620 SAM - NOKIA

(2009-08 - 2016-12)

• Led systems-level validation and troubleshooting for Nokia network-management solutions supporting large-scale IP/MPLS and optical transport networks.
• Worked extensively with Nokia 7750 SR, 7450 ESS and 1830 PSS across MPLS, BGP, OSPF, VPN, QoS, Ethernet, DWDM and OTN technologies.
• Validated routing and service behavior, network resiliency, fault/performance management, Layer 1/optical transport functions and multi-vendor integrations.
• Owned complex defect and fault investigations across network elements, services, management software and transport layers, collaborating with engineering teams through resolution.
• Supported customer deployments, technical demonstrations, test strategy, solution validation and production-readiness activities.

Lead Engineer, TruSource - SUBEX

(2005-01 - 2009-06)

• Led testing, deployment and troubleshooting of telecom network discovery and synchronization solutions, including customer production deployments.
• Performed requirements analysis, system validation, defect investigation and coordination across QA, development and customer engineering teams.
• Supported a customer deployment for Telstra in Melbourne, Australia.

Master's Degree - Software Systems - BITS Pilani

Bachelor of Engineering - Electronics & Telecommunication - BPUT University