Mehul Agrawal

SDE2 - CommerceIQ (Aug 2024 - Present)

Java Spring Boot Databricks Redis Python

• Optimized APIs powering dashboards by improving SQL queries, parallelizing operations, and fixing performance bottlenecks, reducing latency by 40%.
• Designed and built a data copy tool for copying business data from production environment to lower environments improving developer productivity by more than 80%.
• Currently designing a scalable ingestion platform to process 1.5M+ reports within 1 hour, optimizing dependency management and parallel execution.

Software Development Engineer - Juspay (Apr 2022 - July 2024)

Haskell Python PostgreSQL Redis Kafka Kubernetes Cryptography & Signatures GCP Monitoring Alerting HLD LLD

As an SDE at Juspay, I build large scale backend services that are highly available(99.9%), scalable, secure, reliable and performant(5000 rps) for the UPI(3Bn Txn/day) payments ecosystem in collaboration with GPay and NPCI.

• Designed, developed, tested, maintained and documented the microservices for the Credit Card on UPI and UPI International features from scratch. CC on UPI contributes around 5% of all the UPI transactions.
• Implemented a layer 7 proxy to perform API migration for the WhatsApp UPI PSP migration project. Performed database migration ensuring data consistency and integrity. Achieved near-zero downtime.
• Contributing towards business logic for ever evolving payment requirements, improvement and maintaining UPI microservice handling 5k rps traffic, 1000 logically sharded database, cache, encryption service and cloud components.
• Prepared an XML signing and signature verification module to mitigate MITM attacks and data integrity issues. Internally used a fork of the open source library hsaml2 and modified it as per the use case.
• Designed and implemented an internal automated testing tool that helped in reducing manual efforts, diminishing human errors and slashing the testing time by more than 90%.
• Setup a monitoring and alerting improved process to reduce the turnaround time to any production issue to 20 secs.
• I excel in daily SDLC tasks like developing and reviewing code, design discussions, driving app performance improvements, testing, designing logics, scripting and automations, debugging issues and documentations.

Software Engineer - Addverb (Aug 2021 - Mar 2022)

Java Spring Boot Python Flask Kafka Redis SQL

• Architected a microservice for the warehouse management system for managing the movement with above 200 moving parts and maintaining inventory of empty pallets within the warehouse.
• Engineered REST APIs to streamline order fulfillment flow by integrating screen input with printer and weight machines across 1000+ devices, resulting in a 40% reduction in order fulfillment time for the client.

Software Engineer Intern - Codenscious (May 2019 - Jul 2019)

Python Django DialogFlow

• Integrated third party APIs into a chat service and built complex conversation flows using the DialogFlow service.