Apr 2023 – May 2024 · 1 yr 1 mo · On-site

• Led the development of the Request Processor module for the Global Shipment Master microservice. Took charge of the LLD and HLD discussions. Implemented the module using the chain of responsibility design pattern, and created detailed class diagrams.
• Led the migration of the Cartman weight management service to adopt CDC-based data ingestion for the Flipkart Data Platform (FDP). Worked on the solution and HLD independently and provided mentorship to an intern for implementation. FDP is a critical data repository used for generating reports and insights that drive business decisions.
• Implemented a new thread pool in the E2E Orchestrator Core module, optimizing core execution logic for the action DAG. Addressed latency issues through a deep dive into Threadpool Tuning, utilizing tools like JMC and JVisualVM for debugging via thread dumps, heap dumps, and JFRs.
• Worked on the Event Rationalisation OKR for rationalising the number of events that accounting systems understand from > 100 to 6. Owned the end-to-end solution independently, showing capabilities of recognizing deficiencies in a fuzzy problem statement.
• Managed the end-to-end solution for Shipping/E2E ecosystems in Post Order Segmentation (POS) phases 1 and 2, including contract creation, high-level sequence diagrams, and contributing to LLD. Identified and addressed gaps in shipment and reverse shipment processes, ensuring smooth update flows and resolving discrepancies between phases.
• Implemented critical structural fixes in the E2E Orchestrator ecosystem, successfully resolving thread pool exhaustion and significantly reducing MTTR for P0 incidents by implementing flow-wise isolation. Analyzed and implemented a ClassLoader cache to effectively mitigate blocked threads, substantially improving system performance. Implemented purger crons for various databases, ensuring efficient data cleanup and maintenance.

Mar 2021 – Mar 2023 · 2 yrs · On-site

• Collaborated on implementing the Exchange Later initiative across teams, resulting in a projected 1400 CR incremental gross GMV.
• Contributed to the implementation of the Paperless Invoice initiative within a cross-functional team, projecting a 50 CR per annum cost reduction.
• Shipping Deprecation: Worked on migrating different components by removing legacy code.

Aug 2020 – Feb 2021 · 6 mos

• Overbooking: Revived the Java, flask services. Helped its launch in multiple new countries with end-to-end ownership.
• Prepaid: Built several components of this microservice including a CSV uploader. Had E2E ownership of the same.
• Reduced latencies of multiple APIs, using different methods including Redis, Read Replica DB.

Jan 2020 – Jul 2020 · 6 mos

• Tech Hygiene: Implemented fault tolerance using Hystrix.
• Restrictions: Built a new flow for the creation and removal of hotel restrictions.

Jun 2019 – Jul 2019 · 1 mo · Greater Delhi Area