Tamilmani Prabhakaran

• Worked closely with Analytics and Product teams to provide data
  visualization solutions in a Subscription Project with $8M in
  annual revenue.
• Supported Retention rate with cohort analysis, driving up the
  customer retention to 17%
• Created 30+ dashboards to give insights on the business with
  Tableau.
• Build scalable databases capable of ETL processes using SQL,
  Hive QL and Spark.
• Evaluate the workflow and increase the efficiency of data
  pipelines that process over 50 TB of data daily.
• Mentoring the New hires with onboarding and KT.
• Lead the effort in multiple Migration Project.
• Subject Matter Expertise in multiple Business Area[ Subscription,
  Asset Protection,Merchandising].

Achivements

• Developed a 360° business dashboard with 24 panels that
  became a favorite visualization tool for the Product Analytics
  Team and Executives.
• Worked with Business teams to gather requirements for
  designing a data warehouse model that raised efficiency 27%.
• Presented the Insights in Hackathon[Internal Idea Forum] which
  Save 60M/YEAR.

CLIENT/WORKPLACE • WALMART GLOBAL TECH • SUNNYVALE,
CA, USA

• Designed and Build the multiple Data pipe line for different
  source system. Kafka, Cassandra, Oracle, File and JSON.
• Collaborated with Business & Product to collect information for
  requirement analysis.
• Analyzed the requirement and Designed the proactive process to
  handle the exceptions in data, delays and long runs.
• Designed and modeled the tables for the Pangaea migration in
  the catalogue domain from legacy catalogue system(oracle).
• Created the Dashboard with multiple insight for the item, Item
  Life cycle and Item cost life.

Achievements:

• Developed the dashboard with 60+ KPIs to give the complete picture of
  an Item (Item Life cycle) which helps business to increase procurement
  of High demand item with cost benefit

• Client - Projects - Role:
  Walmart Ecomm – Global Data Analytics Platform – Lead Developer
  (05/2015 – 11/2015)
  Primarily focused on Design, Development and implementation,
  also involved in data modelling and Requirement gatherings,
  Task planning and deployment, backed by a demonstrated ability
  to bridge the gap between business requirements and technical
  processes.
  GE(General Electric) - Self Service – BI Framework Developer (03/2015 –
  05/2015)
  Collaborated with Business & Product to collect information for
  requirement analysis .Analyzed the requirement and Create
  Technical Design Document Led the effort in design and process
  model. Review code developed by peers and validate against the
  requirement . Implementation and production support is taken
  care as per the standards. Around 120 KPI’s were delivered.
  20 th Century FOX - CPE Support Services – Senior Developer
  (10/2012 – 03/2015)
  Prepared the ETL Scripts and Source to Target mapping
  documents for the integration of data marts into the EDW.
  Involved in problem solving, came up with valuable ideas &
  resolutions and helped the team members to understand the
  logic and resolve issues.
  Walmart - CPE Support Services - Support Engineer (02/2012 –
  10/2012)
  Data Integration of the source system. It was Highly Critical as it
  dealt with the Live Production Site of Walmart. Created PL/SQL
  Packages, Procedures and Shell Scripts. Worked on Product
  Introduction Management process like Item Creation, Adding
  Distributors/Vendors, Reprocessing and Reintroduction of the
  item. Item Management process like Publish, un-publish, Retire,
  Archive, Cost change and Managing Distributor details on the
  Production site. Gained hands on experience in the entire
  product life cycle process of a retail business
  FOX- Netezza Migration - ETL Developer (10/2011 – 01/2012)
  To perform DW Migration from Teradata to Netezza environment
  and the system from Windows to Unix. I was responsible for the
  development of ETL and Unix Scripts. Exhibited my scripting
  talent in the migration of Windows batch scripts to Unix shell
  scripts.
  Walmart Ecomm - Business Intelligence Development and Support
  Services - Developer (07/2011 – 10/2011)
  Analyzed the Business and Order life cycle of Walmart. Analysed
  the dimension and fact tables used in the project and created
  Logical Data Models. Created Informatica jobs with Unit testing,
  Business Objects report with validation and Unix Shell scripts in
  Walmart standards.
  Walmart Ecomm - Customer Relationship Management (CRM) - ETL
  Developer (10/2010 – 07/2011)
  To Perform ETL implementations with Unit testing and Unix shell
  scripts in Walmart standards. Created and worked with the
  control transaction table, audit data load table, session and
  workflow status tables and their respective mappings.