Oct 2021 – Jan 2022 · 3 mos

• ➢ Worked on solution for Covid Immunization vaccine dosage appointment reminders using Hadoop and Spark integration
• ➢ Worked on solution using Hadoop and spark for notifying walmart patients incase of store closed temporarily due to sudden issues of cyclone or any natural calamities
• ➢ Performed code review and identifying functional gaps in end-to-end application development life cycle

Oct 2020 – Sep 2021 · 11 mos

• ➢ Worked on design and development of central refilling of drugs for patients in Walmart Pharmacy stores through messaging channels such as SMS and Voice
• ➢ Migrated messaging solutions from mainframe DB2 to cloud Azure Infra
• ➢ Designed and Implemented flows in Cisco IMI connect (messaging platform) for messaging interactions with Walmart patients

Aug 2019 – Sep 2020 · 1 yr 1 mo

• ➢ Worked as software developer in GLS International Team which is WMS system that fulfils store and ecommerce orders from Walmart Distribution Centres of International Markets.
• ➢ Designed and developed integration of AGV robots with existing GLS production for movement of goods inside distributions centres which optimised performance of movers.
• ➢ Also lead operational excellence of entire GLS product to enhance and build tools that can be leveraged by any business , QA and Non-tech people to easily debug or track
• ➢ Worked on integration of Vendor Appointment Scheduler for receiving goods
• ➢ Also created automation framework for integration testing using Cucumber which optimizes performance of QA and Integration Testers.

Aug 2018 – Jul 2019 · 11 mos

• ➢ Worked as software developer in order-manager team which helps digital and physical integrations across eCommerce platforms, Stores, Fulfillment Systems and Distribution centers. This provides processing, routing, transformation and translations across multiple channels, message formats and multiple protocols. This layer deals with millions of messages per day.
• ➢ Developed features on in-house java-based Integration components (adapters, core, bridges Etc).
• ➢ Designed optimized Cassandra data models for transaction logging, developed Cassandra-reader APIs and logger applications using Spring Boot.
• ➢ Developed replay utility tool that automates reprocessing of large number of failure transactions which majorly helps in case of DR (disaster recovery) and in removal of dependency on support team
• ➢ Worked on business epics such as In-Home-delivery, Bakery-Pickup, Back-To-Campus and Alpha-Robot

Aug 2016 – Jul 2018 · 1 yr 11 mos

• ➢ Developed message flows that helps in integration of first pickup tower(robot) in Walmart store and worked on integration of dot-coms(Jet.com , Asda.com) with fulfilment Systems. As part of integrating different systems, I worked on different technologies such as Message Broker, IBM Integration tool, ESQL, JAVA, XML, JSON, XSLT, XSD , SQL and Cassandra
• ➢ Developed sherlock using java, spring, tomcat, angularJS and xml which is SSO configured UI that helps in searching transaction level details of entire lifecycle of an order. This helps a lot while debugging about any customer order in case of critical issues.
• ➢ Designed and developed in-house alerting framework that helps in retrieval of error information by cronjob for every 10 minutes and send alerts to slack/email/pager based on criticality which helps in taking immediate action by corresponding support teams within service level agreement time.
• ➢ Unit Testing Framework – Designed and developed inhouse testing framework which helps in removal of dependency on external LISA testing tool and also to automate E2E testcases by QE team.
• ➢ Worked on java based solution (OJAS) for integration to eliminate dependency on IBM Integration Tool kit.
• ➢ Migrated 50% of message flows from IBM tech-stack to OJAS. This helps in scaling components horizontally whenever load increases
• ➢ Participated in holiday-peak hour monitoring for Walmart sale days
• ➢ Worked on business epics such as Pack-Robot integration, Associate-Delivery and Etc.