January 2023- Present - SDE3 at Amazon Security FoundationsJuly 2022 - Jan 2023 - SDE3 at Buy With Prime

March 2021 - July 2022 - SDE II at Buy With PrimeJune 2020 - March 2021 - SDE II at Amazon Pay

- Lead a team of 10+ to deliver multiple Angular, React, Android, and Node based apps. - Owned hands-on implementation of core logic on the backend for DarkSky, TicketMaster, and eBay shopping client.

- Worked on the Assessment tool for the Learning platform of Cornerstone OnDemand. - Worked on adding backend and UI support for new 5 question types including multiple choice with multiple correct answers and text based - Implemented a POC for "Click on Image" type questions where the correct answer can be drawn as Polygons on an image and the assessment taker clicks on the same image to indicate their choice. If the selected point lies within one of the regions/polygons marked as correct, then the score is counted.Technologies: ReactJs, C# , Dynamo DB, GraphQL

- Developed a framework to ensure the accuracy of Maps that self-driving cars use for navigation - Implemented complex geometric and mathematical projection algorithms

- Developed and owned an in-house reconciliation tool- Matching Engine, written in Java. It has the ability to reconcile 2 sets of data, with several features like Many-to-Many matching, matching with certain error margins, matching different representations of same data. - I was the primary owner of the product and was leading the efforts in all phases of SDLC from requirements gathering to coding to deciding the deployment strategy, with leading the team of 2. - Managed an intern in the development of a Support Dashboard named Stellar. - It has the ability to execute Unix commands, database queries, monitoring the infrastructure via a responsive web-based GUI.- This system automated production support tasks for over 70 people reducing chances of human errors thanks to the ease of configuration and limited yet necessary access provisions. - The backend was developed in Java, having executor services and DAOs for tasks like Unix commands and DB queries. - The AngularJS based GUI provides the ability to configure new applications, commands, and queries which are stored in the DB2 database via Java middle tier.Major technologies: Java, Java8, Spring, AngularJS, JavaScript, Bootstrap, Web development, Unix, DB2, RESTful APIs, Sybase, Object-Oriented Software design, Architecture design.

- Worked on a Java-based system which computes and optimizes Exchange and Clearing fees to be paid by the firm. I on-boarded multiple stock exchange schedules which require understanding, modelling and implementing complex mathematical and programming challenges. This system has saved more than $250M for the firm, with my contribution being several hundred thousand dollars. - Worked on making the system "Hot-Hot Deployment" compatible. This allows us to release new code to production and test it with partial processing. It is no longer mandatory to do weekend releases because this project led to 0-downtime for the system even during the code releases. This involved end to end development - leading to a highly modular, flexible and dynamically configurable Java application.

- Successfully completed Wall Street's awarded best training programs-TAP by Mallon Associates. -At the end of the program, led a team of 3 to create a visualization dashboard as a 1-month project and won "The Best Team" Award, out of 30 teams across India. - My role involved working on the backend written in Java. I implemented multiple RESTful web services, connecting to databases using DAOs and efficient caching using EhCache and Spring framework.- Also contributed to the JavaScript-based front end by integrating HighCharts API with the ability of handling of large data to update the GUI in real-time.Major technologies involved: Java, Spring, IBM MQ, Shell, Unix, C++, AngularJS, C3.js, D3.js, HighCharts, Scala, C#, .net, DB2, Sybase

- Worked with Business Intelligence Tech team to develop multiple Data Visualisation tools. - Developed Data Visualisation and Analytics dashboards for Demand, Supply, and Operations departments with different requirements. - E.g. in one of the dashboards, I integrated Google Analytics to show real-time and historical analysis of traffic on the company's website and mobile applications and leads from other social media promotions. - This helped the team in strategizing future promotions and led to effective growth plans.- Worked with multiple Open Source projects including pivottable.js, adding several features and reporting issues. Technologies: JavaScript, CoffeeScript, Google Graphs API, C3.js, D3.js, Django, jQuery, cURL, Git, Open-Source.

I worked as the co-web master of my college's student chapter ACM.-During this job under a webmaster, we created a uni-page website with parallax scrolling. -The site had information about various events, workshops, conferences. -The users can also post doubts for their seniors to answer and also submit articles. It was a complete website, with least bugs, developed using latest technologies.

I joined this company in the 2nd year of my engineering with little idea about software development. I learnt the basics of web development to study an existing site by highlighting the issues and bugs. I created some digital content including banners, visiting cards, brochures etc. Technologies involved: Web Development, HTML, CSS, PHP, Adobe Photoshop, Adobe Lightroom.