Abhishek Nandakumar

About Abhishek Nandakumar

From Big data insights to DevOps agility, I\'m Abhishek Nandakumar, your architect…

Experience

1. Software Developer (Java,aws)

   Aditi Llc

   Jun 2024 — Present · Washington, DC, US

   Client: MdThink (Maryland total human services) Led a team of 7 developers as the primary coder, modernizing the Child Support Management System (CSMS) by replacing outdated COBOL-based legacy systems with a scalable, high-performance application aligned with Department of Human Services (DHS) modernization goals.Engineered a faster front-end for CSMS using AngularJS, coding dynamic UI components with lazy-loaded modules. Integrated AWS Cognito (JWT), reducing login errors by 15% and enhancing user accessibility across devices.Designed and coded a scalable cloud architecture, migrating legacy COBOL data to AWS RDS (PostgreSQL) with custom scripts, implementing batch processing to handle large datasets, achieving zero data loss and cutting downtime to under 2 hours.Created multi-table structures based on stakeholder requirements, reusing existing tables to minimize processing overhead, and leveraging AWS RDS optimizations to boost case registration module load times by 30%Revamped CSMS back-end services by coding optimized Nest.js and TypeORM modules, introduced a Redis caching layer for frequently accessed case data in PostgreSQL, slashing API response times by 25% and accelerating case management workflows for end users.Configured a static front-end deployment on AWS S3 for consistent UI delivery and a dynamic back-end on AWS EC2 for real-time case updates, personally setting up Bitbucket Pipelines with parallel testing stages, optimizing branching strategies and reducing deployment time by 30%.Led the implementation of sprint deliverables by driving the development team to execute user stories provided by stakeholders, leveraging my CSPO certification to prioritize and refine technical requirements, ensuring seamless Agile execution and alignment with project goals.