Mar 2020 – Sep 2021 · 1 yr 6 mos · Pune, Maharashtra, India

• DebugsBunny (debugsbunny.com) is a platform to teach K12 students Coding and Programming. Coding is a complex subject, we believe in making it fun by teaching through interactive methods and games.
• We are building an online platform for students to teach programming concepts, like logic, control flow, sequence, and algorithmic thinking to build applications to solve real-life problems.
• Implemented MVP, website, android app.
• Architected the Debugsbunny platform in Java, Spring, MySQL, Redis.
• Implemented internal sales admin android application using flutter.
• Built & lead a team of five engineers to develop various features like batch scheduling, teachers portal, a payment module, admin payments portal, etc.
• Designed & implemented an in-house drag & drop block coding app by extending a Google Blockly library.
• Acquired 2k paid users on the platform.

Dec 2017 – Feb 2020 · 2 yrs 2 mos · Mumbai, Maharashtra, India

• At Dream11, I was associated with the platform team, responsible for implements highly scalable applications, research on new technology to improve application response time, scalability, and availability.
• Architected and led scalable, highly available 'Wallet Service' responsible for all credit/debit transactions at Dream11. Scaled wallet service by horizontally sharding MySQL.
• Built a relational database sharding library, helps in sharding data across multiple RDBMS instances.
• Architected and led scalable, highly available ‘Contest Service’, responsible to handle contests for a match. It allows a user to view the active contests and join the active contest, track joined the contest, etc. It significantly improved contest join per second (write per second) to 12k WPS from 800 RPS and reads per second to 200k RPS. Implemented service using Spring Boot, Cluster Redis, Amazon Aurora MySQL, and VoltDB database.
• Architected and implemented a ‘Persistence’ framework to execute SQL CRUD operations.
• Design and implemented ‘Join Contest using Queue’ feature which allows a user to join a similar contest if the intended contest is full. This feature increased the contest join rate and effectively increased organization revenue.
• Architected, implemented scalable, highly available, and reactive ‘Fantasy Tour’ service, responsible to handle all active match details for each game.
• Designed and implemented a re-usable ‘REST API’ framework to implement REST APIs using Eclipse Vert.x for the platform layer.
• Designed and implemented a re-usable ‘Cache’ framework to connect to the remote Redis cluster using Eclipse Vert.x. Includes support for Lettuce and Radisson Redis client.
• Architected, implemented scalable, highly available, and reactive ‘Contest Personalization’ service to show personalized contest sections (with a contest) for a match based on user properties. Implemented service using Eclipse Vert.x, Apache Ignite in cluster mode, Amazon Aurora MySQL.

Jul 2016 – Dec 2017 · 1 yr 5 mos · Andheri

• As an individual contributor, I am responsible for implementing new features, refactoring of code to improve performance and modularity of application. Contributed to Cashiering module of IB trading platform.
• Designed and implemented basic ORM tool in Java for cashiering module. It effectively improved reusability, modularity of report generation framework, G-man note journaler, cashiering web app and other cashiering modules.
• Implemented support to connect to multiple databases in basic ORM framework.
• Designed and implemented scalable, optimized meta-data driven report generation framework which helped the organization to configure various reports.
• Introduced caching support for a web application to improve the rendering performance of report module. Caching significantly improved rendering performance by 300℅.
• Implemented batch request processor using producer-consumer pattern to process request asynchronously.
• Contributed to various features of cashiering like surveillance report module, data journaler, transaction file parser to decorate bank entries and scaling wire deposit processor app.
• Effectively solve bugs in system, creating release for application to deploy at production.

Feb 2015 – Jul 2016 · 1 yr 5 mos · Mumbai

• As a tech lead and individual contributor at MedStudio a start-up organization in the healthcare domain, I was responsible for the design and development of scalable, efficient application from scratch. Developing web services, mobile application, scalable architecture on Google gcloud. Contributed to various products like sales force effectiveness (SFE) web application, mobile app. Guiding team members to resolve technical issues.
• Contributed to the architecture of sales force application and delivered various features for sales force effectiveness.
• Designed and implemented dynamic reports with graph feature (Analytics). Implemented report graph factory in Java to render different types of graphs on UI using the high chart.
• Architected SFE mobile application from scratch using hybrid mobile application development framework - Ionic framework. Delivered mobile application for iOS, Android and Windows OS along with back-end implementation.
• Improved user experience for mobile application by providing online/offline reports with graphs in the mobile app, dashboard, and offline data feeding.
• Implemented various end-to-end web application features using Java, Angular js, Spring framework, myBatis ORM framework, Apache CXF REST api framework to implement REST api, mongo db and mysql database.
• Setup application server, database server, load balancer from scratch on Google gcloud and maintaining application servers on gcloud.

Sep 2013 – Jan 2015 · 1 yr 4 mos · Mumbai Area, India

• A software engineer to design and implement end to end features for the product. Design and development of data layer of Analytics. Responsible for making application more scalable, efficient and enhanced application performance. Contributed to products: Report Management System(RMS) and Analytics.
• Contributed to the architecture of Analytics a data intensive product of Zycus by designing and implementing data access layer based on Hadoop and HBase.
• Designed and implemented the map-reduce algorithm in Java for Analytics which effectively improved the response time of the report.
• Designed and implemented Query Builder for data access layer of analytics which in turn run map-reduce. Provided abstraction made easy to transfer report query to map-reduce.
• Developed REST services in Java using Apache CXF.
• Migrated file system based report management system to store data to Mongo DB to scale application for new feature requests and effective improved response time of report by 40%.
• Implemented Map-Reduce to perform data aggregation for Report Management System in Java.
• Implemented various end to end features for product like Report Sharing, Email Notifications, Smart Totaling and Report chart.
• Handles production issue and resolved bugs.

Nov 2012 – Sep 2013 · 10 mos · Mumbai, Maharashtra, India · On-site

Oct 2011 – Sep 2012 · 11 mos · Bengaluru Area, India · On-site