
Tariq Khan
Full Stack Developer
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Senior Full Stack Developer
Solutions • Full time
Feb 2022 - Present • 4 yrs 7 mos
Architected and delivered three enterprise-grade applications—HRMS, CCTV Monitoring, and Warehouse Management System—using React.js, Next.js, and NestJS, supporting 100+ concurrent users in production. Designed scalable GraphQL and REST APIs for multiple client integrations, improving average API response time by 35% through query optimization and caching. Optimized PostgreSQL and MongoDB databases using indexing, query restructuring, and aggregation pipelines, reducing peak-load query execution time by 40%. Led backend architecture for a multi-module HR platform covering payroll, attendance, and performance management using a modular NestJS architecture, while collaborating asynchronously with designers and product owners across time zones to deliver complex features through sprint-based development.