Mar 2023 – Feb 2025 · 1 yr 11 mos · San Francisco Bay Area

• Subscription Lifecycle Management: Worked during Design/Implementation/Integration/Testing phases for subscriptions team to manage compliances /access for both B2B and B2C customers using Adobe cloud products. Delivered 14 ARR.

Feb 2022 – Mar 2023 · 1 yr 1 mo · California, United States · Remote

• Derivatives Trading Platform: Integrate market data stream from exchanges to calculate margin requirements on new orders; Integrate exchanges using FIX protocol to place and execute Market/Limit orders
• Derivatives Market Risk: Integrate with risk vendor - Janus, over Kafka stream to monitor updates to client risk measures; Integrate using AMQP to handle alerts on surpassing risk thresholds

Jun 2020 – Feb 2022 · 1 yr 8 mos · Cupertino, California, United States · Hybrid

• Responsible for providing tailored answer experiences for 5M/week general knowledge questions; Built solution for context based search to provide an intelligent Siri user experience
• Designed and implemented a new dynamic dialog generation engine for general knowledge queries with a seamless and regression free phased migration to the new stack

May 2019 – Aug 2019 · 3 mos · Cupertino

• Building solutions for Siri Contextual Knowledge Search to increase engagement and provide an intelligent experience

Jan 2019 – May 2019 · 4 mos · United States

• GSI for Data Structures (CS 61B) - one the most popular courses of Berkeley, comprising of ~1500 students

Apr 2017 – Jul 2018 · 1 yr 3 mos · Gurgaon, India

• Led a team of 6 software engineers to build Snapdeal's robust marketing automation platform used to send a mix of over 30 million instant and scheduled communications per day ranging from emails, SMS, app notifications , etc along with analytics over it. The platform comprised of various components:
• Communication Engine -
• Designed and built this engine to send user-level customized communications via different mediums
• Added support for running scheduled campaigns
• Built support for browser/desktop notifications
• Supported two templating engines (Mustache & Apache Velocity) to define the content of communications
• Provided support for tracking each of communication state ranging from 'SENT', 'OPENED', 'CLICKED', etc
• Journey Engine
• Designed and built this real-time decision system built on ECA[Event Condition Action] model to track events in the lifecycle of a customer and then take appropriate actions to customize their experience according to configured conditions.
• Scaled it to make ~1000 decisions per second
• Technologies Used: MySQL, Apache Kafka, Mustache, Apache Velocity

Feb 2016 – Mar 2017 · 1 yr 1 mo · Gurgaon, India

• Similarity Engine:
• Co-developed and optimized this collaborative filtering based recommendation engine to generate recommendations for more than a 50 million product catalog.
• Optimized the pricing function using a modified Gaussian curve for up-selling products.
• A/B Test Platform:
• Conceptualized, designed and developed this platform to perform statistically significant A/B tests on different actions(or campaigns) being executed per user by the decision system(Journey Engine).
• Technologies Used: Hadoop Map-Reduce, Apache Kafka, Apache Spark, InfluxDb, Grafana

May 2015 – Feb 2016 · 9 mos · Gurgaon, India

• Primarily built a real-time data ingestion pipeline to process and store live product feed of various e-commerce clients of TargetingMantra, a B2B personalization & marketing automation startup headquartered at California.
• Added support for data cleanup and pre-processing before storing it.
• Scaled up to 100 requests per second with each consisting of a batch of 10 products.
• Technologies Used: Java, Hadoop HDFS, Apache Cassandra

Jul 2014 – May 2015 · 10 mos · Bengaluru Area, India

• Promise Engine: Co-developed this highly critical real-time rule-based engine, used for calculating the delivery date of a product by using data about its inventory, location and warehouse load.
• Reduced 99 percentile response time to 30ms
• Added support for pickup feature
• Technologies Used: Java, Redis, Dropwizard framework with Tenacity & Breakerbox

Jul 2013 – Jul 2014 · 1 yr · Bangalore, India

• Fares Analysis: Developed this interactive application for displaying and comparing flight ticket prices from different airlines using graphs and maps.
• Technologies Used: Highcharts API and GWT(Google Web Toolkit).

Jun 2012 – Jul 2012 · 1 mo · Noida Area, India

Dec 2011 – Dec 2011 · 0 mo · Noida Area, India