Aug 2020 – Aug 2024 · 4 yrs

Dec 2018 – Aug 2020 · 1 yr 8 mos

Nov 2017 – Nov 2018 · 1 yr

• Being part of the Apple support app services development team our core responsibility is to provide new backend service apis for upcoming functionalities and enhancing existing apis if needed.
• Single handedly converting the entire facade module from simple jetty spring application to Apple in house built framework on top of spring boot providing several cross cutting benefits from the framework like security, class/package level logging, configuration properties management, metrics reporting etc.
• Design and development of API level validations for json and google-proto requests based on JaxRS - validator and custom filters.
• Dynamic Api documentation by swagger/openApi implementation on Jax-Rs RestEasy framework.

Apr 2016 – Nov 2017 · 1 yr 7 mos

• As a member of the Radar (Bug tracking and planning system) Service API team, I was part of the re-architecture of Radar API project. This project is Phase byPhase Re-writing of Underlying APIs for
• Radar with completely new technology stack like Appeng Aluminium,JAVA 8,Kafka,Jibe Framework ,Cassandra and others.
• Design and development of Spring boot application on jetty for re-architecture of Rest API for bug creation/update/get.
• Data Migration using in house built Jibe Framework based on AKA and apache kafka from oracle to solr
• Design and development of Spring boot application on jetty for re-architecture of Rest API for Attachment upload/download/rename/delete.
• Encryption of Attachments with different AES modes like AES/ECB/PKCS5Padding, AES/CBC/PKCS5Padding+HMAC-SHA-256 Benchmarking different Encryption modes for AES algorithm.
• Data modeling for cassandra column family for storing attachments metadata
• Storing Attachments metadata in Cassandra using datastax mapping manager/accessor.
• Design and development of spring boot application on jetty for attachments/files migration from one repository to another along with metadata storage in cassandra using multithreading and java blocking queue

Jul 2017 – Nov 2018 · 1 yr 4 mos

Sep 2010 – Jul 2017 · 6 yrs 10 mos

Dec 2013 – Apr 2016 · 2 yrs 4 mos · Hoffman Estates,Illinois

• Member of the team responsible for development of Java based web applications for in store Merchandise pickup unit.
• Design and development of Spring based Application to provide Rest API for online order creation,
• processing by store associate and subsequent pickup by customer on Jboss Application Server.
• Design and development of standalone spring application for reading online order creation messages from IBM MQ ,subsequent calling rest API for order creation and providing acknowledgment messages to queues.
• Design and development of API for printing in store pickup tickets and discount coupons using the Pre-
• format xml/xsl on zebra printers at stores.
• Designed and developed Spring Scheduled Processes for daily store activity.

Mar 2012 – Dec 2013 · 1 yr 9 mos · Kolkata Area, India

• Part of the team responsible for development of Java based applications for Product Data management and migration of legendary system to NextGen data platform.
• Designed and developed Spring based application for providing Java Rest API for data transformation and Oracle database persistence using spring jdbc templates on Jboss Application server.
• Streamlined deployment process by developing Maven Scripts and integrating continuous integration tools like Bamboo with Articatory and Nexus repository manager and Subversion.
• Developed Java Code for XML to XML transformation using Altova Mapforce transformation tool.
• Developed Mule ESB flows consisting of reading data from MQ,XML to XML transformation,XML to
• datatransformation and persistence to oracle and Mongo Databases.

Sep 2010 – Mar 2012 · 1 yr 6 mos · Mumbai Area, India

• Part of the development team responsible for development of highly available Java based web application for Tesco online sales. The application consists of web UI using JSPs and Java Spring based backend with highly available database clusters.
• Development of Rest API based on Spring for online order creation.
• Development of Email alert for customer on order creation and update.
• Developed Highly Available Clusters of Mysql,Oracle and Postgres databases using Redhat Cluster Suite
• and SAN.
• Building and setting up both infrastructure and application level monitoring environment using Nagios,
• Hyperic,OpenNMS.