SAYAN MAJUMDER

1) Deployment of Nokia Cloud Platform- NCP on top of RedHat OpenShift- OCP (Enterprise Kubernetes) in Telco operators for building robust Private Cloud Infrastructure to host the 5G Core, RAN & other BAU applications. Nokia CaaS applications. SDN, NFV, orchestration & virtualization. 2) HLD, LLD planning of the OCP & NCP, Cloud deployment project management, Completion of standard UAT & Test cases. 3) Deployment of Hub, Workload cluster. Helm chart, artifacts, yaml scripting. 4) Integrating the OCP with firewall, NTP, Core-DNS, Leaf & Spine switch. Infra & tenant bond. 5) Networking of the cluster thru Metal-LB load balancer, Ingress/Egress, Routes, SR-IOV, OVN, Multus CNI, Calico, Flannel. 6) Local Storage, ODF Cluster storage thru ceph/rook. Block, object & file storage.Ceph CSI, NooBaa 7) Security Hardening of the cluster as per Nokia guidelines w.r.t pods, container image & registry, Certificate management, etcd configmaps & secrets, firmware & kernel level, RBAC, IAM, OAuth access tokens, proxies, firewall, logs audit, robust CI/CD pipeline, security policies, storage encryption. 8) Integration of Nokia Blueprint & RedHat OCP standard operators like odf ceph / rook, quay, service mesh Istio, NUMA, schedulers, log collector & visualizer tools like Prometheus, Grafana, Elastic search, kibana, loki, Jaeger, Kiali, alaert manager etc. 9) Zero Touch Provisioning thru Nokia’s CI/CD application named as Nokia Continuous Delivery- NCD. Harbor, Nokia Git server, NCD pipeline, Docker, Podman, Backup & Disaster Recovery. 10) Integration of the Nokia Private Cloud with Public Clouds like AWS, Azure & external Data center. 11) Deployment of Nokia Cloud Operation Manager or NCOM to manage the lifecycle of the Nokia applications. RHACM for OpenShift lifecycle management. 12) Assisting the CNF / VNF application team to host the containers & Telco applications. CPU allocation policy, resource quota, huge pages, storage & other platform related support to application team.

Ericsson Cognitive Software 1.0 (Software Project Management) 1) Agile methodology, Sprint Planning, Sprint Management, Regular & weekly scrum meetings, Sprint review & Sprint retrospective. Scrum framework tools like Jira & Confluence. 2) Sprint Life-cycle management, Impediment management, backlog tickets closure. 3) Creation & management of Epic, story, tasks, subtasks, Management of Incidents, Bug, Hotfix tickets. Version release management. 4) Demand management, cost management, schedule management. Analyze, develop & plan project schedules & delivery timelines. Ensure deliverables are up to quality standards. 5) QA Test & Validation in feature & develop branch, documentation of new features. 6) Serving a team of 13 engineers consisting of Full stack developers, Hadoop developers & DevOps. engineers to meet the sprint targets & other agreed KPIs. Effort estimation & manhours planning. 7) DevOps tools like Ansible, Jenkins, bitbucket, Docker, Kubernetes. 8) Hadoop Cloud era platform tools like Spark, Impala, Hive, Kafka, Flume & Zookeeper

1) Worked as Team Lead – Radio Network Planning and Optimization in Nokia-Siemens Networks (Aircel project, Kolkata) ; managing a team of 7 optimization engineers ; 4 DT engineers and 3 TSG engineers ( from 21st Jan 2008 to 7th Dec 2011 ). Key functional areas : 3rd Generation ( UMTS network ) : 1) Working and managing teams of sub vendors in Green field UMTS network optimization of Aircel Kolkata. 2) RF - AT of Node Bs and cluster optimization to meet the agreed KPI target with the customer. 3) New WCEL / WBTS (Node B) database planning; Scrambling Code, LAC / RAC, Adjacency planning; Initial parameter planning for all UMTS services 4) Day to day optimization; customer complaints resolution; Neighbor planning and optimization for 2G / 3G cell reselection and handover. 5) Working on the 3G KPI formulae / value checking and validation. 3G ND reports checking. 3G Worst Cells and meeting the agreed KPI targets of 3G. 6) Routine 3G route ; cluster ; grid drive and optimization done as per requirement. 7) 3G daily KPI ( CS and PS RRC ; RAB establish success rate; Blocking and Congestion ; Throughput ; Quality ; Drop ; HOSR ; Traffic ) optimization to meet the SLA 2.5th Generation ( GSM Network ) : 1) Green field optimization of GSM network (both voice and data) of Aircel – Kolkata 2) Initial planning and day to day tuning of BSS database 3) Finalization of both Voice and DATA KPIs with their corresponding formulae and benchmark values for SLA ( i.e. ; UCL, Target , LCL values) 4) Daily maintaining the KPIs – both cell wise and network wise 5) Physical and parametric / database optimization on regular basis to meet the SLA, post processing of drive test, resolution of customer complaints. 6) Data (GPRS and EGPRS) network planning and optimization 7) New Cell planning / integration and acceptance 8) Implementation of new GSM / NSN features like Robust AMR, Progressive power control, Gb over IP, PCU pooling, Gs interface in the network.

Worked in Reliance Communications, Corporate planning, Kolkata as BSS planner Key Functional Areas: 1) BTS, BSC , Transcoder , PCU planning and dimensioning . Abis, Ater, A and Gb interface B.W dimensioning and projection. BOQ preparation of MOTO, ZTE and ALU radio equipment of all RTL circles during expansion, up gradation and swap phase. 2) Swap planning (vendor swap in RTL from existing MOTO to ZTE and Alcatel Lucent) and initial database maintenance. 3) Customizing the KPI formulae of ZTE and Alcatel Lucent inline to the existing MOTO formulae (with necessary raw counters, timers and ladder diagrams) 4) Tuning the ZTE and Alcatel Lucent database parameters keeping inline to MOTO. 5) Special Projects like Noise cancellation equipment, VQA (Voice Quality Analyzer) and E1 optimizer tested and implemented in the RTL networks. Initial feature testing / Pilot Testing of ALU BSS . Exposure to Planning Tools: GIS (Ecosmart TRPT) , TCPU ( Tems Cell Planner - 6.2.2 ) , Tems Universal Drive Test ( Tems Version : 8) , PCTEL Clarify - receiver based scanner for interference calculation , ACTIX , ASSET Suite

Key functional areas: BSS: Reactive and preventive maintenance of sites, BTS cabinet configuration, carrier addition, calibration of various MOTO BSS equipments, measurement of BTS output power and VSWR, TMA / TMB / Repeater / filter addition, software upgradation of various equipments,. Alarm /statistics checking and trouble shooting accordingly. Installation and commissioning of new BTS sites as per set target. Integration and troubleshooting of MOTOROLA BSC and RXCDR , Ater/A interface planning and implementation, signaling links (RSL, XBL, MTL) planning and implementation as per utilization. Transmission: Frequency / polarization / capacity planning of new hop with suitable protection as required, planning of new path and protection path as and when required, traffic shifting with the minimum outage, hop survey, transmission network optimization, Commissioning and trouble shooting of NOKIA PDH microwave link, NEC SDH hop. Exposure in Add/Drop multiplexers like micro SDM and XDM 100 , IP allocation to the MUX , Exposure in Transmission Planning Tool PATHLOSS (Version-4)