Summary
Overview
Work History
Education
Skills
Certification
Timeline
Generic

NITHIYA SANTHIRARAJ

Summary

Committed, performance-driven Staff Software Engineer professional with over 16 years of IT experience in bringing value to organization through a blend of technical leadership, business knowledge, and team focus. Currently working as Data Engineer in Financial Data and Analytics Team, building several data marts in Google Big Query for User reporting. Proven ability to assess situations and implement solutions to improve efficiencies, reduce rework and meet strategic goals.

Overview

16
16
years of professional experience
1
1
Certification

Work History

Staff Software Engineer

The Home Depot
08.2023 - Current

Designed Jenkins CICD pipelines to build Channel Economics in Google Big Query using Point of Sales and the Landed Cost of products

Participated in Architectural design meetings and document high and low level design for SAP Source Data landed in Google Big Query

Led the team of ten members for SAP sourced data landed in Big query and for Channel Margin

Calculated Receipts Layers with Discounts and Expenses for the Inventory of facilities onboarded to SAP from Legacy System

Automated creating Jenkins pipelines for newly onboarded tables from SAP to Big Query using Python Script

Developed Data validation Pipelines to validate Channel Margin data to be in threshold of the expected Gross Margin

Performed Completeness and Accuracy validation to compare SAP and Google Big query Data using Dataplex

Wrote complex SQLs to calculate Delivery Revenue and Expenses using the orders that are fulfilled on daily basis

Automated Unit Testing to compare source and target using Dataform

Data Engineer

TATA Consultancy Services
04.2017 - 08.2023
  • Designed Jenkins CICD pipelines to build Receipts Engine in Big Query using Raw Receipts data from SAP
  • Analyzed SAP source tables and decoded German columns to English
  • Participated in Architectural design meetings and document high and low level design
  • Calculated Moving Average Cost for products based on available inventory in Warehouse
  • Developed Data validation Pipelines to validate SAP and legacy system's data and set threshold limit for any failure
  • Performed Completeness and Accuracy validation to compare SAP and Google Big query
  • Wrote complex SQLs to calculate Inventory at cost and Inventory at retail metrics
  • Designed Pub Sub topic to subscribe to source SAP data to Google Big Query
  • Design workflow orchestration using Apache Airflow
  • Built Vendor Assignment in EDW to let suppliers understand how their products are sold in Home Depot's Store and online

Senior ETL Developer

TATA Consultancy Services
09.2014 - 03.2017
  • Designed Enterprise wide cross reference table to allocate online sales metrics to Stores using Customer Billing Zipcode and Store IP Addresses
  • Designed Abinitio Graphs to pull data from DB2 and Raw Input files and load to Teradata for reporting Sales, Inventory , Receipts and Markdown Metrics on daily basis
  • Designed SQLs to generate feeds and load to Sql server Database for planning, forecasting and product assortment activities
  • Designed sqoop jobs to pull data from DB2 source to load to Hadoop System
  • Analyzed various merchandising and finance source systems to bring needed data to build Gross margin at SKU , Store and Vendor grain Performed End to End Data Validations

Software Developer

Tata Consultancy Services
05.2008 - 08.2014
  • Developed Unix Scripts to extract data from Retail Warehouse System and Retailer Defined Hierarchy Databases for Stop & Shop/Giant Landover every 4 weeks to be fed into a data warehousing application
  • Developed Unix Shell scripts to generate baseline data to allow Clients to make key decisions on effectiveness of their promotions by correlating lift in sales, beyond baseline, with their advertising data and that of their competitors
  • Set up History data migration from Teradata to Big Query
  • Deployment and Post Production Support
  • Discussed issues with team members to provide resolution and apply best practices
  • Tuned systems to boost performance

Education

Bachelor of Engineering - Computer Science And Engineering

Anna University, India
2007

Skills

  • Databases: Google Big Query, Teradata, SQL Server, DB2
  • Version Control: GitHub , PVCS , Ab Initio EME
  • ETL Tools: Ab Initio, Datastage
  • Apache Airflow For workflow Orchestration
  • Google Pub/Sub
  • Data Governance Tool: Google Dataplex
  • Operating Systems: Windows, Unix
  • Programming Languages: UNIX Shell Scripting, Python
  • Distributed File System: Hadoop
  • Project Methodologies: Agile, Waterfall
  • Project Management Tools: Jira , Pivotal Tracker
  • Functional Area: Retail Domain - Receipts , Inventory and Sales Management

Certification

Google Cloud Certified Associate Cloud Engineer

Timeline

Staff Software Engineer

The Home Depot
08.2023 - Current

Data Engineer

TATA Consultancy Services
04.2017 - 08.2023

Senior ETL Developer

TATA Consultancy Services
09.2014 - 03.2017

Software Developer

Tata Consultancy Services
05.2008 - 08.2014

Bachelor of Engineering - Computer Science And Engineering

Anna University, India
NITHIYA SANTHIRARAJ