Dec 2022 – Nov 2023 · 11 mos

• ● Designed and developed Merchant Data Storing microservices written in Reactive SpringBoot, which stores various merchant level data (merchant, store, billing, terminal, product). My responsibility includes the overall design of dependent microservices, responsible for, from consumption of Salesforce events from event bus, to structural organization of merchant data, and maintaining the corner cases.
• ● Designed and developed a separate microservice written in Reactive SpringBoot for migration of existing data from the Salesforce environment to Merchant Data Storing microservices, including execution of migration of 100M records from Salesforce to new data storing services.
• ● Created Low Level Design and developed Manual Merchant KYC Document Verification API, with proper validation check, which includes structure of data, and rules it maintains for validation.
• ● Introduced Docker containerized Embedded Database (TestContainers) based Short-lived DB in the Integration Tests for Merchant Data Storing microservices across the org. Wrote unit tests and integration tests for Merchant Data Onboarding microservices with >97% coverage.
• ● Designed and developed solution with Retry Queue and DLQ to handle error events in Merchant Data Storing microservices. Developed parallelism for heavily trafficked bank-funded merchants with dedicated Kafka Topic to eradicate unexpected lag in event consumption, resulting 83% reduction in consumption latency.
• ● Designed and developed solution with Zookeeper and Leader Election Library to incorporate hybrid scaling of Salesforce CDC Event Consumer Service.
• ● Incorporated multithreading-friendly mechanism in usage of JavaScript Engine for Spring Boot microservices, resulting approximately 76% reduction of latency for APIs introducing parallelism in JS Engine usage.

Jul 2021 – Dec 2022 · 1 yr 5 mos

• Worked in Device Registration team in Amazon with the following contributions in major.
• ● Designed and Developed an end to end service, which listens to Registration related
• Events and publishes it to client-facing actual events upon successful validation.
• ● Enabled 2-factor authentication while calling the Registration based microservices' API
• ● Created design documents for Device Authentication libraries and certified it.
• ● TLS 1.2 migration for internal self service web app endpoint.
• ● Integrating internalised Bootstrap packages upon completely removing external Bootstrap dependency in internal self service web app.
• ● Cross Account CloudWatch Alarm creation for Registration based metrics.
• Worked on-AWS Technologies (Public/ private)- AWS CDK, ECS, Lambda, SNS, SQS, IAM, DynamoDB, CloudWatch
• Languages : Java, TypeScript, Python, SQL
• Development
• Code reviews
• Deployments and monitoring
• Oncall (successfully resolved multiple high severity customer cut tickets), Operational Excellence tasks etc.

Jan 2021 – Apr 2021 · 3 mos · Pune, Maharashtra, India

• ● Developed a Social Networking WebApp as my first RoR project (learning purpose)
• ● Generation of Bulk Stock Movement Report, Bulk Stock Discrepancy Report in
• client-specific Order Management System on the basis of custom filter
• ● API to fetch time-constrained Stock Details displaying in terms of cost of goods
• ● Fixed various backend bugs in Order Management System
• Framework : Ruby on Rails
• Language : Ruby

Apr 2020 – Jun 2020 · 2 mos

• Development of AI-NLP based voice assistant model

Sep 2018 – May 2020 · 1 yr 8 mos

• UG Student Researcher at CMATER Lab, Jadavpur University under the guidance of Prof. Dr. Ram Sarkar