Usman Mirza

Full Stack Developer

Citrok • Part-time

Jan 2023 - Present • 3 yrs 9 mos

• Built and launched 5+ public Shopify apps that bring the company recurring monthly revenue, plus 20+ custom apps that run management workflows for individual stores. • Developed Inkpressions, an AI-powered custom gear store where customers design products with AI-generated artwork. Store sales grew 50% after launch. • Built Bonafidio, a multi-tenant feedback and submissions portal sold as a SaaS app, now used by 20+ onboarded store owners. • Wrote REST APIs in Node.js and NestJS with JWT auth and role-based access on MongoDB and PostgreSQL, and integrated Stripe, PayPal and Postmark. • Raised team productivity by about 50% by introducing agile sprints and CI/CD pipelines with GitHub Actions and Docker.