Jan 2021 – May 2022 · 1 yr 4 mos

• Led the data platform team in the Flipkart M3 group that powers system
• feedback, reporting, and analytics insights for Ads, Merchandising, Recommendations,
• and CRM.
• ● Led the team to deliver a real-time reporting system built on top of Spark Streaming,
• Kafka, Aerospike, Elasticsearch, and Druid.
• ● The systems show live reports to the advertisers by providing an aggregated view on top
• of historical and real-time datasets,
• ● Scaled the system to handle ingestion load of 1M Qps

Jan 2019 – Dec 2020 · 1 yr 11 mos

• Unified Processing Framework:
• ● Lead a pod of 4, to develop a custom data processing framework on top of Spark to
• abstract out the common part of our processing pipelines and reduce the turnaround time
• for developing a business pipeline for all new product use-cases.
• ● Collaborated with the team, mentored and enabled juniors to develop the framework.
• Unified Reporting Platform:
• ● Worked on developing a single reporting platform for all reporting use-case. The platform
• is designed around a set of queryable APIs (RESTFUL) interfaces that encapsulates the
• needs of all kinds of dashboard Advertisement reporting requirements.
• ● Feature set: Time-series & Tabular APIs, LogicalViews over datasets, Dimension
• Enrichments, Pluggable Business Logic, Application side lookups, etc.

Jan 2017 – Dec 2018 · 1 yr 11 mos

• Inhouse Slice and Dice Platform:
• ● Designed and developed an API layer that would provide a seamless view over data
• sources, abstracting out the physical data store(MySQL, CH, Druid).
• ○ SQL Query Interface.
• ○ Designed and developed Apache MetaModel module for integration with Druid
• ● Collaborated with different team members to develop a custom in-house Slice and Dice
• reporting solution on top of the Data View API Layer.

Apr 2014 – Jul 2015 · 1 yr 3 mos · Bangalore

• I worked on Samsung Sports Application backend. The app had major audience in European and Latin America countries and it supported all the major soccer leagues and soccer world cup. I was part of the team that handled following responsibilities:
• 1. Data Aggregation from different sports content providers:
• 2. XML and Json feeds parsing and pushing to RDB and Redis
• 3. Synchronizing between multiple content providers and data correction
• 4. Aggregation from different SNS content providers
• 5. Pushing Realtime updates(match scores and commentary) and notifications to the clients.
• 6. Admin portal: Developed an Admin portal for aggregator module for data verification, remote log analysis, content monitoring, health check, maintaining and archiving data feed files from content providers.

Jul 2012 – Mar 2014 · 1 yr 8 mos · Bangalore

• As a senior software engineer I worked on multiple projects in Samsung listed below:
• Application Backend Development for Samsung Android applications(~1 year): I worked as a part of a small team (4 member) to develop a backend service to an application similar to Google Now on Tap but with very limited functionality as it was started as proof of concept. I was involved in following modules.
• 1. Used Spring framework for building the whole system.
• 2. Tag generation using text filtering and DBPedia, based on the content provided by the application.
• 3. Content aggregation from different open/free web services (like twitter,facebook,news aggregator).
• 4. (Experimental) Generate recommendations using EasyRec and Apache Mahout based on user actions.
• 5. Used MongoDB and MySQL for database, Lucene for indexing the content.
• ChatOn Instant Messaging Application for Android based phones(~2 months).
• 1. Mostly worked on commercialization of the product, fixing bugs and adding features.
• 2. For small time took work on refracting and optimisation of ChatOn application code.
• ChatOn Instant Messaging Application for J2ME based phones:
• 1. This was my first project/team I was part of when I joined Samsung.
• 2. Here also worked on commercialization of the product, fixing bugs.
• 3. Spent good amount on feature enhancement like chat backup and restore for J2ME phones.

Jun 2011 – Aug 2011 · 2 mos · Rennes, France

• Implementation of Dynamic DNS for wireless Sensor Networks(WSN).
• I spent my summer working as an intern in one of the research labs of Telecom Bretagne in Rennes under Professor Laurent Toutain. The objective of intern was to send dynamic dns updates from wireless sensor nodes to facilitate easy monitoring and data collection. I worked independently on this which involved
• 1. Understanding complete working of WSN, its consructs and restrictions.
• 2. Sensor nodes computing and storage capabilities, which were quite low to conserve power.
• 2. The operating sytem (contiki) used on the nodes.
• 3. DAG based routing algorithms and its implementation used in WSN.
• 4. 6LoWPAN, IPv6 and DNS protocols.
• 5. C++ and linux networking.
• I was successfully able to register the sensor nodes on DNS whenever they changed ip addresses using Dynamic DNS updates.