About Waqar
Waqar Habib Khan is a seasoned full-stack developer and designer with expertise in building scalable SaaS applications, e-commerce platforms, and fintech solutions. Over the past decade he has shipped more than 100 production projects and helped generate over $2M in client revenue, working across the entire stack from database design and API architecture to front-end performance and conversion-focused design. His day-to-day toolkit centers on React, TypeScript, Node.js and cloud-native infrastructure, and he has a particular interest in the unglamorous parts of software that make products reliable: email deliverability, transactional messaging, authentication flows and abuse prevention. At Temp Postal he writes about the practical side of developer productivity — how to test signup flows without polluting real inboxes, how disposable email fits into a modern QA pipeline, and how small teams can adopt privacy-friendly tooling without slowing down. When he is not shipping client work he contributes to open-source projects and writes detailed build logs on his personal site, where he documents the trade-offs behind real architectural decisions rather than idealized tutorials.
Areas of expertise
- Full-Stack Development
- SaaS Architecture
- React & TypeScript
- Developer Tools
- E-Commerce
- FinTech