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Results-driven Product Specialist with 7 years experience in Telecom Operational Support Subsystem (OSS) and Customer Experience Management (CEM) domains.

Professional expertise includes project management,customer support ,product delivery and product maintenance . 

Work experience


Platform Specialist / Hadoop Administrator

Nokia Bangalore

Product : Nokia Networks award-winning CEM on Demand (CEMoD), provides an innovative user-friendly online portal that makes it easier than ever to manage the telecom operator's network insight and predict the subscriber's behaviour.This also helps to improve customer retention and boost revenues through increased data usage.

Projects: Safaricom Kenya ,Telecom Italia ,Orange Spain ,Orange Poland , AMX

Environment : Linux ,Hadoop, HDFS,hive,shark,spark,Storm, Zookeeper and HBase ,HP DL380 servers

Project Description: The scope of the project includes installation and commissioning of CEMoD on 100+ nodes ,data loading of the operators network ,analysing the data for integrity ,system verification and finally performing the system acceptance along with customer . 

Roles & Responsibilities :

- Responsible for implementation and ongoing administration of Hadoop infrastructure.

- Aligning with the systems engineering team to propose and deploy new hardware and software    environments required for Hadoop and to expand existing environments.

- Cluster maintenance including addition and removal of nodes.

- Performance tuning of Hadoop clusters and Hadoop MapReduce routines.

- Screen Hadoop cluster job performances and capacity planning

- Manage and review Hadoop log files.

- HDFS File system management and monitoring.

- Diligently teaming with the infrastructure, network, database, application and business intelligence teams to   guarantee high data quality and availability.

- Collaborating with application teams to install operating system and Hadoop updates, patches, version           upgrades when required.

- Database connectivity , security ,backup and recovery.

- Automate manual tasks.

- Load large data volumes in a timely manner. 


Product Support Engineer

Nokia Bangalore

Product : Nokia Networks market leading Serve atOnce Device Manager (SADM) plays a key role in managing and improving the customer experience by helping CSPs to control ,configure and understand devices in the network.

Projects handled: Vodafone India ,Airtel India ,Idea India ,Telenor Hungary ,Starhub Singapore ,Vodacom Tanazania ,Du Dubai ,Vodafone Australia

Environment : Linux ,Oracle ,GFS2,EMC SAN storage,IBM HS23 blade servers,HP DL380

Project Description: The scope of the project includes installation and commissioning of SADM and integrate with live networks and finally perform system acceptance before handovering to customer .Provides R&D support for post delivery issues .  

Roles & Responsiblities: 

- Installed and configured SADM and integrated with live networks.

- Provide support for all post delivery issues .

- Analysis and finding solution for complex problems while close collaborating with software, development,  professional services and quality assurance

- Supporting Solution Architect and sales teams in realising the product delivery.

- Install and test the delivery packages in customer and our own lab environment

- Applies knowledge and experience to determine root cause of issues

- Consults, supports and guides own team's external interfaces

- Creation of training contents and realization of trainings

- Coordinating with Program Management in delivering new product releases

- Working with R&D and Product Management in identifying and exploring new possibilities ,scopes and  features in the products

- Software Verification and Stability Testing of the new product releases . 



Nokia Academy

- Nokia Academy Trainer for the products SADM, CEMoD
- Create the training content
- Provide extensive training to Nokia internals and customers


Big Data

Hadoop, HDFS ,NoSQL ,Hive, Shark,Spark ,STORM ETL, Zookeeper ,Kerberos security, Hbase , data validation


Storage Area networking, EMC storage , IBM & HP servers ,FC switch ,DRBD


Oracle RDBMS , PostgreSQL ,SQL plus ,Couchbase , Hbase

Operating Systems

Linux OS, Red Hat High Availability using RHCS, networking skills




ICFAI University

General Management


Bachelor of Technology

TKM College of Engineering College

Electronics & Communication Engineering

Professional Achievments

Product Delivery

 - Installed and succesfully delivered CEMoD  for multiple customers

-  Key player in CEMoD customer demos in AMX and Orange Spain ,Orange Slovakia and

-  Succesfully delivered SADM for multiple customers.

Project Management

- Spearheaded and successfully implemented the end to end project management of the delivery of SADM    v9.0 in Vodafone India and Du telecom ,Dubai .


Date of Birth : 8th November 1987.
Age : 28 years.
Marital Status : Single
Nationality : Indian
Father's Name : P. Raveendran Nair