Full Stack Developer
Kaushalam Digital · June 2025- March 2026
• Architected a multi-tenant storefront platform with a centralized adminpanel serving 2+ independent storefronts, 30,000+ products, 1.4M+orders, and 15,000+ assets via isolated PostgreSQL schemas and Node.jsAPIs.• Implemented variant-based and product-wise customer pricing, CMS,and digital asset management modules, enabling granular tenant-levelcustomization across storefronts.• Engineered bidirectional data synchronization via Microsoft BusinessCentral ERP across all storefront instances, maintaining integrity for 30,000+products and 1.4M+ orders.• Modeled normalized PostgreSQL schemas across 3 systems with 100+relational tables enforcing 3NF, applied strategic denormalization toreduce join operations, and custom-filtered primary key structures tooptimize API response sorting.• Established scalable relational database models for 15+ modules, supporting 500-700+ students and 100+ staff across academic workflows,with architecture Upgraded for multi-school deployment.• Architected 20+ RESTful APIs for inventory, order, and user management; executed zero-data-loss migration of 100+ SQL Server tables toPostgreSQL using multithreading and ETL/ELT.• Increased API load capacity by 3x through composite indexing and APIlevel query optimization, validated by JMeter load testing beforeproduction release.
