Nov 2024 – Jan 2025 · 2 mos · Hybrid

• Designed a fail-fast solution to disable unregistered user accounts on GPay consumer app for payments to BFSI merchants by fuzzy matching masked bank account numbers and IFSC codes.
• Proposed a caching mechanism to reduce latency of the online merchant payment processing flow.

Nov 2022 – Oct 2024 · 1 yr 11 mos · Hybrid

• Designed the solution to acquire BFSI merchants (in India) by integrating with acquiring bank APIs for account matching during payment processing.
• Designed the solution to enable retries for failed online merchant UPI payments, allowing the users to re-attempt the payment within the GPay app, without being redirected back to the merchant's app.
• Reduced externally exposed API latencies through multiple initiatives to improve merchant experience.

Jun 2021 – Oct 2022 · 1 yr 4 mos · Hybrid

• Contributed to building a payment aggregator (PA) for the top online merchants in India with solutions for merchant onboarding, payment processing, settlements, refunds and reconciliation.
• Built a real-time monitoring solution for merchant analytics (with sliding window aggregates) consisting of transaction counts and payment volumes using materialised views on live database.

Jul 2020 – Jun 2021 · 11 mos

• Built a REST service to virtually migrate inventory (without downtime and inventory unavailability to users) from 3P warehouse to Amazon warehouse and reduced the migration time from ~40 hrs to ~5 hrs.
• Built an automation service to allow self-externalisation of Amazon tools to public network using AWS technologies like DynamoDB, StepFunction, S3, Athena.

Jan 2020 – Jun 2020 · 5 mos

• Externalised Amazon's tools which were running only in Amazon network (1P warehouses) to the public network with proper authentication.
• Built an application server with Java Spring MVC to serve static content of Middleman Ruby website and make proxy AJAX calls to the downstream backend service.
• Added RTL support for languages such as Arabic and Urdu to a customer-facing service.

Jun 2020 – Aug 2020 · 2 mos

• Worked on the FHIRv2 module of OpenMRS which deals with using the HAPI FHIR library to maintain information about patients and their medical records.
• Implemented advanced search functionality including the support for pagination, _include and _revinclude.
• Used the Criteria API of Hibernate to generate queries.
• Took the module to its first release and remained a top contributor.

May 2019 – Jul 2019 · 2 mos · Bangalore

• Worked on setting up data pipelines (ETL Workflow) from Hive to MySQL. The ETL workflow for the same was written in Python and involved HQL and SQL queries as well.
• The data transferred to MySQL was used to rank the customer support CTAs (in descending order of the number of clicks) in a Golang service built on an architecture involving controllers, mappers, entities etc.
• The project reduced the Average Handling Time (AHT) of the customer support team significantly, thus saving millions of dollars for the company annually.