Summary
Overview
Work History
Education
Skills
Languages
Timeline
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Gokulnath Chinnathambi, Senior Data Engineer

Sydney,Australia

Summary

  • 13+ years of experience in the field of Software Development, Enhancements, Maintenance and Data Warehouse applications.
  • Experienced in gathering, analyzing, design, code and test the given requirements. Developed best ETL practices and responsible for enterprise integration.
  • Experienced in Big Data - SQL, Python, Spark, Ranger, HBase, Hive and Hadoop ecosystems and creating data pipelines in AWS.
  • Experienced in IBM Sterling integration, Informatica Power Center, PL/SQL Oracle and Informatica Intelligent Cloud Services (IICS).
  • Experienced in I2/Blue Yonder Products like JDA Fulfillment, Demand Manager and Transport Management systems development and support. Unix/Windows platform with applications ranging from custom developed in-house applications to various Data Warehousing applications like Replenishment Data Mart and Centrally Assisted Replenishment System (CARS) Data Mart.
  • Experienced and dedicated Data Analyst with several years of experience identifying efficiencies and problem areas within data streams.
  • Experienced in Disaster Recovery Strategy for Retail application systems.
  • Experienced in DevOps processes, CI/CD Pipelines and hands-on experience in JIRA, Bit-bucket, Git, Jenkins and Confluence.
  • Functional domain experience in Supply Chain - Retail and Banking - Human Resource.
  • Mentored over 15 team members and drive them efficiently towards positive outcomes and delivery.
  • Professionally focused on result oriented, hard working with a quest and keen to learn new technologies.

Overview

14
14
years of professional experience

Work History

Senior Data Engineer

Westpac Banking Corporation
09.2022 - Current
  • Gather, understand the given requirements from Business Stakeholders and initiate solution workshops to discuss the optimize solutions aligned to business functionalities and scope of the projects under Data Platforms
  • Prepare impact assessment document and High-Level Solution Design document detailing about the solution aligned to Westpac standard design principles and patterns.
  • Analyzed data using Looker to proactively identify anomalies and limit discrepancies by 26%.
  • Prepare a detailed technical design document briefing all the technical aspects and collaborate with Governance team on governance aspects.
  • Designed AWS data pipeline workflows for efficient extraction, transformation and loading, which reduced data processing time by 42%
  • Deploy and test the constructed code using Continuous Integration and Continuous Deployment in bit-bucket and Jenkins pipeline
  • Reengineered existing ETL workflows to improve performance by identifying bottlenecks and optimizing code accordingly.
  • Ensured data quality through rigorous testing, validation, and monitoring of all data assets, minimizing inaccuracies and inconsistencies.
  • Reduced data inaccuracies by 15% and enhanced data quality by refining ETL processes using Python and AWS Glue.
  • Developed CI/CD pipelines using GitHub, increasing development efficiency by 34% through automated testing.
  • Collaborated with cross-functional teams to define requirements and develop end-to-end solutions for complex data engineering projects.
  • Mentored the team members towards the solution outcome and test results
  • Implement and Warrant support the code and help run teams to resolve any failures during the warranty period

Achievements:

  • Implemented and delivered a critical program called Conflict of Interest where all the HR data fed to My Compliance Office, a third party SAAS consumer application which generates data for Reporting and Analytics on Non-financial Risks
  • Performance Optimization of MyComplianceOffice (MCO) application batch jobs.
  • Implemented and delivered another critical program called Time Labor Absence Management and Benefits (TLAMB) successfully where we have created a HR data product running Intra-day frequency first time across Westpac Banking Corporation
  • Created a single view HR employee profile which simplifies the code construct for all other consumer applications.
  • Initiated a data governance strategy using AWS Lake Formation, enhancing data security and compliance.
  • Introduced automation in cloud infrastructure management using AWS CloudFormation, saving operational costs by 20%

Integration Engineer

Westpac Banking Corporation
08.2020 - 08.2022
  • Understanding the given requirements and perform Impact analysis and create impact assessment documents
  • Analyze, Design and develop code using Informatica PowerCenter 10.4.1, Oracle 19c, Control M V9, Unix/Linux Shell Scripting and IBM Sterling
  • Performed unit testing in the Enterprise Information Gateway (EIG) and IBM Sterling applications
  • Collaborated with cross-functional teams to identify requirements, design solutions, and deliver integrated systems that met business needs.
  • Facilitated knowledge transfer among team members by creating comprehensive documentation on integration processes and best practices.


Achievements:


  • Implemented and successfully delivered more than 10 programs on Sterling IBM integration
  • Fine-tuned EIG-Enterprise Informatica Gateway batch job in Elumina Care Xpress application
  • Optimized system performance by troubleshooting and resolving complex technical issues related to integration, infrastructure, and software components.

Technical Lead

Woolworths Limited
03.2015 - 07.2020
  • Acted as a Technical Lead and coordinated the team's major implementations like Disaster Recovery testing for all replenishment applications, Informatica on premise and Cloud
  • Analyse, Design, Build and code for Replenishment User stories
  • Acted as an SME and supported the team by providing application knowledge transition on Fulfilment and Transport Management
  • Drive project results by ensuring no SLA breaches on incidents, problems and enhancements
  • Created the automation in Replenishment space i.e
  • Daily status email for UI availability and Order availability, Replenishment Data Mart reporting availability
  • Acted as a Team Lead who managed JDA Replenishment, Transport Management systems, Demand Manager, Lost and Sales Monitor applications
  • Transition Coordinator for all the onboarded new applications like JDA TMS 2017, JDA Fulfilment Strategy Project, Lost and Sales Monitor (LSM)
  • Application representative and Subject Matter expert for all the Major Network Upgrade, Hardware replacement and OS Patching changes and outages
  • Drive the impact analysis and technical verifications as part of all the outages in Replenishment and Transport Management Systems
  • Run Weekly meetings with offshore team and ensure no action was missed out and drive towards on time deliverables
  • Involved in Major crisis like power failure, power outage and fire at Distribution centre for application restoration from end to end
  • Fixed major critical problems in JDA Replenishment, Replenishment Data Mart and Transport Management pace
  • Artefact all the major unplanned outages and learnings and created a repository for future use cases.


Achievements:


  • Provide strategic solutions on business priority problems by having one-one discussions with Business stakeholders and understood clearly the problem statements
  • Led a team of developers to successfully deliver high-quality software projects on time and within budget constraints.
  • Maintained close communication with clients throughout project life cycles for accurate progress reporting and prompt issue resolution.
  • Enhanced system performance with thorough code reviews, debugging, and optimization techniques.
  • Evaluated and recommended new tools and technologies that resulted in increased development efficiency and up-to-date technical skillsets within the team.
  • Drive Continuous Service Improvement activities in addition to the problem management to make application systems more reliable
  • Implemented Disaster Recovery solutions for all JDA Fulfilment and Transport Management systems and got appreciated by the customers
  • Facilitated knowledge sharing sessions, strengthening team expertise and fostering collaborative work environment.
  • Coordinated with stakeholders to define project requirements, ensuring alignment with business goals and customer needs.

Support Analyst

Woolworths Limited
07.2011 - 02.2015
  • Acted as a team member and involved in Incident, Problem, Request and Change Managements for JDA Replenishment, JDA Demand Manager, JDA Fulfilment MASTERS and Transport Management Systems
  • Involved in Major Crisis situations like ECDC Location outage and implemented Disaster recovery for the ORACLE NGR Exadata DATABASE machine successfully and got appreciated by customers
  • Run all the problem meetings and provided updates to customers in Transport Management Space
  • Acted as a team member and maintained business critical applications in a healthy state and fix the issues reported by users
  • Provided constant 24X7 technical support for applications to ensure optimal durability and reliability
  • Contributed towards Weekly and Monthly governance deck preparation
  • Worked closely with JDA MASTER business and fixed more than 10 problems and 5 enhancements
  • Identified the gaps in the Solution CARS Data Mart which is a data warehousing solution of BIGW banner in Woolworths
  • Contributed to many solutions for stabilizing the system and reduced manual work with automation of monitoring and reporting
  • Operational excellence in providing solutions to incidents, Problem Managements
  • Trained new support analysts, contributing to the overall growth and success of the team.


Achievements:


  • Streamlined support processes for increased efficiency and faster issue resolution.
  • Improved customer satisfaction by promptly addressing and resolving support issues.
  • Collaborated with cross-functional teams to implement solutions that enhanced system performance.
  • Conducted thorough analysis of user requirements, delivering tailored solutions to meet client needs.
  • Managed multiple projects simultaneously, ensuring timely completion within scope and budget constraints.

Education

Bachelor of Engineering -

Thiagarajar College of Engineering
India
05.2011

Skills

  • Git
  • Apache Spark
  • SQL
  • Python
  • Data Integration
  • Amazon redshift
  • AWS glue
  • Continuous integration
  • Hadoop ecosystem
  • Data pipeline design
  • Data modelling
  • ETL development
  • PostgreSQL
  • Terraform

Languages

English

Timeline

Senior Data Engineer

Westpac Banking Corporation
09.2022 - Current

Integration Engineer

Westpac Banking Corporation
08.2020 - 08.2022

Technical Lead

Woolworths Limited
03.2015 - 07.2020

Support Analyst

Woolworths Limited
07.2011 - 02.2015

Bachelor of Engineering -

Thiagarajar College of Engineering
Gokulnath Chinnathambi, Senior Data Engineer