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Sajjad Khalid

@sajjadkhalid

React Native Engineer at Ascendify Technologies who delivered 10+ production apps and modernized app state with Redux Toolkit.

Pakistan

Message

At Ascendify Technologies, I develop production mobile applications with React Native, Expo, and Redux Toolkit. I led a migration from MobX to Redux Toolkit and upgraded applications from Expo SDK 46, resolving native dependency and compatibility issues.

I’ve built mobile products across payments, wellness, e-commerce, and logistics, including digital wallet and bank-linking flows, merchant discovery, and delivery tracking. At Qubitars Technologies, I developed React.js portals and React Native applications, integrating USPS tracking and location-aware features.

Experience

Work history, roles, and key accomplishments

Current

React Native Engineer

Current

Ascendify Technologies

Jan 2024 - Present (2 years 9 months)

Developed 10 production apps using React Native, Expo, Redux Toolkit, and React.js. Led migration from MobX to Redux Toolkit, improved performance, and mentored developers.

React Native Expo Redux toolkit React TypeScript JavaScript iOS Android Agile Performance Optimization Debugging Mentorship

Frontend Developer (Web & Mobile)

Qubitars Technologies

Apr 2022 - Sep 2023 (1 year 5 months)

Developed scalable web applications and backend services for international clients. Built React.js web portals and React Native/Expo mobile apps, integrated USPS tracking and geolocation features.