Delivered and managed key features of account management, enrollment, contributions, payroll transfers, trade orders, withdrawals, termination experience and transaction history. • Established a scalable DevOps pipeline for AWS infrastructure and Docker containerized services. And mentored backend engineers in code review, design, and IaC (Infrastructure as Code) best practices. • Managed native ledger for the pension services using Axion, event sourcing, and CQRS architecture. • Completed an AI chatbot POC written in Python utilizing Large Language Models (LLM) with Retrieval-Augmented Generation (RAG) and Fine-Tuning with Effective Feature Training (FEFT). • Developed backend services in Java & Kotlin (Spring Boot) and TypeScript (Express.js). Also built operations tools in Python for managing AWS services and resources.

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• Developed a one-time-use virtual credit card payment flow in Java running as Docker containerized AWS service, which is seamlessly integrated into the Master Card payment stream, enhancing transaction security and user experience. • Served as the technical lead for the UK Smart Grant project, conducting feasibility testing for a secure fingerprint IoT payment card designed for elderly users. • Leveraged patented OTAC technology to ensure robust security and accessibility for the IoT payment card solution. • Built operations tools in Python to automate AWS service management and resource handling.

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Last Mile | Distributed Message Processing Service • Developed and managed a Java-powered message gateway for handling Amazon delivery requests and status updates synchronously and asynchronously. • Led system architecture, cost optimization, service reliability, requirement analysis, and resource planning. • Contributed to Amazon Flex Android app, focusing on customer signature flow during the Covid-19 pandemic. Alexa Communication Platform • Extended Alexa VOIP services using Kamailio and C/C++. • Developed a distributed load test framework in Java ensuring service availability. • Created internal tools in Python, Java, Perl, and shell scripting for AWS resource configuration and scaling.

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FailAssassin service • Developed FailAssassin with JQuery, a tool designed to resolve bugs by clustering test failures based on potential root causes identified from test run execution log analysis. • Implemented a natural language processing algorithm that increased the accuracy rate of test failures clustering. Selenium-Based Test Automation Framework • Spearheaded the development of a data-driven test automation framework written in Java, overseeing test data design and test run planning. • Integrated TestRail with the CI/CD pipeline in Jenkins to automate test execution and generate detailed test reports for stakeholders.

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• Developed and managed REST APIs and JEE backend service running on IBM WebSpear with DB2 for the Active Trader web client, enhancing functionality and improving user experience. • Generated essential SDLC documents, including Software Requirement Specifications, Technical Design Documents, and Test Plans, ensuring clarity and adherence to project requirements.

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