Mar 2020 – Feb 2022 · 1 yr 11 mos · On-site

• Led architecture and implementation of two microservices: Notification Service delivering 40M emails daily and Email Metrics Service processing 20M user interaction events per day.
• Drove technical strategy for push notification infrastructure, shipping Pushy service and MPushy service to handle 60M+ daily notifications across web and mobile platforms.
• Shipped subscription management system with three delivery modes (Immediate, Daily Digest, Weekly Digest) and per‑thread muting capabilities, allowing users to opt for different notification types and frequencies.
• Led infrastructure migration from on‑premise data centre to AWS, overseeing migration of Dropwizard microservices, ActiveMQ message brokers and Cassandra database clusters.
• Architected Move Message feature to relocate entire message threads (up to 1M messages) between boards while preserving tree structure hierarchies and implementing rollback mechanisms to restore original state.
• Designed and implemented the spam classification system. Developed machine learning models for spam detection and customer feedback sentiment analysis, taking models from training to production. Integrated Akismet API to automate spam detection across posts and comments.
• Built the moderation workflow with explicit state transitions (pending, review, approved, rejected) to route messages through moderator queues before publishing.
• Led sprint planning and backlog grooming sessions, establishing Agile development practices in the 12 membered engineering team.

Sep 2018 – Mar 2020 · 1 yr 6 mos · On-site

• Led architecture and implementation of Slack integration for Community platform, shipping DMIS service and Slack App to enable bidirectional messaging between platforms. Designed DMIS as extensible framework supporting integration with any social media application.
• Architected and shipped Authorization‑Service implementing OAuth2 authentication flows (Explicit Grant, Password Grant, Client Credentials Grant) serving 500K+ daily authentication requests across Community platform.
• Designed and deployed a Multi‑Factor Authentication system with Authy, adding a second verification layer for high‑security community accounts.
• Architected SAML authentication flow supporting single sign‑on for enterprise customers; extended implementation to support multiple Identity providers enabling federation across customer organizations.
• Shipped content archival system processing 1M+ community topics; reduced database response times by 30% and cut storage costs by USD 40K annually through automated lifecycle management.
• Extended archival system to bulk operations handling 5K+ threads per batch; enabled enterprise migrations completing in hours instead of weeks through parallel processing architecture.
• Shipped admin logging framework capturing 1M+ daily feature events; reduced engineering escalations by 45% through self‑service debugging tools surfacing errors with documentation links on Admin Screen.

Jul 2016 – Sep 2018 · 2 yrs 2 mos · On-site

• Led migration from monolithic architecture to microservices, shipping Picker Service for warehouse operations and Delivery Service for order delivery across 15+ cities.
• Architected and shipped Medlife Labs, end‑to‑end platform for lab test booking and sample collection scheduling. Integrated Elasticsearch for subsecond search across 5K+ test catalogs and implemented recommendation engine suggesting relevant tests based on user profiles.
• Built Labs Admin Portal enabling lab partner onboarding, test catalog management, booking tracking, and automated report generation; onboarded 50+ lab partners in first six months.
• Designed event‑driven booking pipeline using Kafka message queues processing 10K+ daily medlife bookings; implemented asynchronous order flow reducing booking confirmation time from 30 seconds to 3 seconds.
• Shipped Picker Application with real‑time inventory synchronization enabling warehouse staff to process medicine orders. Implemented Blocked Order Sorting algorithm optimizing order prioritization based on delivery routes and departure schedules; reduced delivery delays by 25%.
• Architected Partner‑Rx integration flow enabling prescription ingestion from external healthcare partners; completed integrations with Aditya Birla Health Insurance and Marsh processing 2K+ monthly prescriptions.
• Built Config Service microservice eliminating application restarts for property updates; implemented 5‑minute refresh scheduler serving configuration to 12 downstream services with 99.9% availability.
• Implemented Redis distributed caching for frequent queries, cutting database load by 40% and improving API response by 60%. Built a build time plugin to detect slow queries and missing indexes, preventing 100+ performance issues before production.

Jul 2015 – Jul 2016 · 1 yr · On-site

• Designed an algorithm to evaluate and rank medicine vendors by pricing, lead time, fill rate, expiry, and historical performance.
• Built backend services to automate vendor selection for purchase orders, improving procurement accuracy and reducing manual intervention.
• Created dashboards to track vendor performance, purchase orders, inventory levels, and item movement for better planning.

May 2014 – Jul 2014 · 2 mos · Hyderabad Area, India

• Developed a Fuzzer application for IEC protocol in Scala. Used Aegis-Dnp3 platform to build IEC fuzz packets and let them flow between the machines using Advanced Sliding Window algorithm. Reduced the vulnerability of the machine crash by 70%.

May 2013 – Jul 2013 · 2 mos · Chennai Area, India

• The project was entirely to convert a client sided server to a server sided one. To do this we used an open-source platform Node.js. I was asked to convert the javascript, Ajax codes of the given server into Node.js.

May 2011 – Jun 2011 · 1 mo

• Water Fuelled Vehicle – Essentially this was a study project for KVPY. We developed a prototype for a water fuelled vehicle using efficient combustion techniques.