Apr 2023 – Oct 2024 · 1 yr 6 mos · Bengaluru, Karnataka, India · On-site

• 1. Worked as an engineering lead/architect to deliver the recently launched Paytm Postpaid Subscriptions product. Responsibilities include coding, high level and low level design, code reviews, mentorship, interfacing with product and business, on-call reviews, scrum and sprint planning.
• 2. Worked as a lead/architect to design and build a microservice which enabled automatic extension of tenures of end customer accounts, and closure of tickets created by users from Paytm app.
• 3. Worked as a lead/architect to create a P0 high-velocity event-driven service for handling compliance actions on the basis of UPI mandate and outstanding balance status of a customer. Handled a throughput of 800 on 2 Kubernetes pods with custom optimizations.
• 4. Designed, built and deployed a minimally invasive feature for encrypting at rest 50 million PII data records with zero downtime in a legacy application for lending management service.
• 5. Designed, developed and delivered a backend feature for the Paytm app enabling users to download their loan related documents directly on the app.
• 6. Designed and built from scratch the backend of a frontend application for automating various workflows for operations team of lending. Built in Golang with a workflow engine, Keycloak and Onelogin OIDC for SSO and authorization.
• 7. Worked as an architect in Settlement team with focus on infrastructure improvements.

Apr 2022 – Apr 2023 · 1 yr · Bangalore Urban, Karnataka, India · Hybrid

• 1. Worked to scale Uber’s indigenous workflow management solution uTask's Java and Golang microservices.
• Responsibilities include designing, development, testing, reviewing and deployment of features and bug-fixes; participation in on-call rotation, breaking epics into tasks, planning of deliverables, interfacing with product managers to create detailed engineering requirement documents and mentoring of junior members.
• 2. Designed a micro-service for handling Real-time Analytics (RTA) use-cases using Apache Pinot.
• 3. Developed, tested and deployed features for extending database table life, secrets integration and optimized Cadence workflows. Set up software development guidelines in the team and presented tech talks.

Feb 2021 – Apr 2022 · 1 yr 2 mos · Bangalore Urban, Karnataka, India · On-site

• 1. Worked as a Tech lead in identity services of Adobe Sign product's gov offering.
• Led the development, design and rollout of FEDRAMP compliant version of Adobe Sign product. Worked with external identity provider Okta, internal product leadership and SREs to ship features and bugfixes.
• 2. Built the asynchronous user provisioning feature with Azure Service Bus with strict ordering for higher throughput and resilience.

Oct 2017 – Feb 2021 · 3 yrs 4 mos · Bangalore Urban, Karnataka, India · On-site

• 1. Worked on rebuilding the Entertainment Service Platform for Walmart.com on backend services in Java/Spring to execute workflows using BPMN models hosted on Microsoft Azure cloud. This is an e-commerce product use-case for selling postpaid mobile phones bundled with carrier plans. This entailed talking with carrier APIs from Walmart systems on the go right from discovery to execution of actual order placement.
• 2. Developed the backend of a customer-facing tablet application to help Walmart store customers to find auto parts. Designed, built and owned the entire backend orchestration (Java/Spring) including CI/CD, monitoring and alerting pipelines on Microsoft Azure cloud.
• 3. Built a scalable backend service in Java/Spring to store health data of various ecosystem services for 5500 Walmart stores in the US. This becomes useful in cases of predicting and recovering from disasters in a multi-tenant and multi data-center deployment like Walmart.
• 4. Worked on rebuilding the online and offline Walmart Pharmacy business. The Routing Engine is a futuristic low latency high throughout system for managing workflows for our on-store and off-store customers. This system was built in Java/Vertx/Redis/Guice for 5500 stores in the US.

Feb 2014 – Oct 2017 · 3 yrs 8 mos · Gurugram, Haryana, India · On-site

• 1. Automated Hotel ranking system is a domestic hotel accumulator. It fetches, calculates, collates and stores hotel attributes which are important in ranking of a hotel from its transaction history and other metrics like content and reputation on a daily basis for all hotels from in-flux data like browsing history and content updation history. I was responsible for designing, developing, testing and deploying it. Used Java, Quartz, Spring and Drools.
• 2. Project Sinbad is a next generation hotels infrastructure of Makemytrip aimed to improve content quality and delivery. I owned its product Automated Image Engine which was responsible for filtering, standardising and logging hotel images with respect to criteria like image duplicity, face count, inappropriate skin content, rival logos and watermarks. Designed, developed, tested and deployed it. Used Kafka, OpenCV, Java Spring, Python and Docker.
• 3. Built a highly scalable multithreaded backend system for Google Hotel Price Ads affiliate of MakeMyTrip. This pipeline was responsible for updating Google's Hotel Price Ads platform with fresh inventory data of Makemytrip hotels in realtime. We used Kafka to push 15 million rates to Google daily with an accuracy rate of more than 95 % for hotel prices of 50k hotels.
• 4. Worked on a caching infrastructure project 'Supplier Platform' -- a smart caching layer for one of Makemytrip's subsidiaries - HotelTravel.com. I built its smart refresh module which automatically refreshes stale cache entries using a scalable multithreaded architecture. Publication: https://dl.acm.org/citation.cfm?id=2830014. Patent: https://patents.google.com/patent/US10540326B2/en
• 5. Route Planner is Makemytrip’s featured product for suggesting efficient routes between any two cities of India. The routes are computed offline using graph based analysis every fortnight and the computed routes are stored in NoSQL to be served on the web. Used Java Spring, Hibernate, Cassandra, MySQL and Neo4J.

May 2012 – May 2013 · 1 yr · Jodhpur, Rajasthan, India · On-site

• For my master's thesis in Computer Vision, I developed a prototype system for interpreting 140 human hand gestures of the Indian Sign Language with the help of Microsoft Kinect sensor. It involved usage of libraries like PCL, OpenNI , OpenCV, FLANN and tools like Matlab. The system followed a Machine learning approach for predicting the meaning of gestures. A demo video of the system can be seen at http://www.youtube.com/watch?v=2oqD-_UCHxQ

Dec 2011 – Dec 2011 · 0 mo · Gurugram, Haryana, India · On-site

• I implemented a real-time Obstacle Avoidance algorithm on a Pioneer 3DX robot using Xbox 360 Kinect
• camera.