ubaid ullah

I’m a Senior Frontend Engineer with 10+ years of experience architecting and delivering scalable web applications. I focus on translating complex Figma designs into WCAG-compliant, production-ready interfaces while integrating REST APIs and GraphQL for reliable, feature-rich experiences.

At Royal Cyber Inc (Dec 2022–Present), I spearheaded frontend architecture for 10+ web projects using React.js and TypeScript, supporting 100+ features end-to-end with full ownership of scalable UI design. I improved application performance by 30% through SSR, code splitting, and optimized GraphQL/REST API integration with advanced state management across 20+ applications.

I also build quality and momentum through strong engineering practices. I’ve mentored 12 junior engineers, led code reviews, and contributed to technical planning across 15+ projects in distributed Agile teams—helping teams deliver consistently without regressions (I converted 50+ Figma designs into pixel-perfect, responsive, PCI-compliant interfaces with zero regressions).

Earlier, at ECOMNEST and Lingble, I delivered scalable ecommerce frontends on Salesforce Commerce Cloud and supported international distributed teams. I boosted frontend performance by 40%, engineered reusable UI components with modular consistency, and improved UI performance and accessibility by 30%—all while strengthening authentication security and reducing code errors with ESLint and structured reviews.