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PWA Development

Progressive Web Applications

Cross-platform mobile-first applications that deliver native-app experiences through the web.

ReactAngularPWAService WorkerREST APIIndexedDB

Project Summary

Across multiple client engagements, Hassan has designed and deployed Progressive Web Applications that bridge the gap between web and mobile.


What the System Does

Offline-First Architecture

Service workers cache critical assets and API responses, enabling full functionality without connectivity.

Instant Loading Performance

Pre-caching, lazy loading, and code splitting deliver sub-second first paint on all devices.

Push Notifications

Web Push API integration for real-time alerts, re-engagement, and operational notifications.

Installable App Experience

Web App Manifest enables users to install directly from the browser — no app store required.

Secure Authentication

JWT-based auth with refresh token rotation, biometric unlock, and secure local storage.

Background Sync

Queued actions (form submissions, transactions) sync automatically when connectivity resumes.


Delivered Outcomes

92+
Lighthouse performance score
60%
Lower development cost vs native apps
Faster deployment across platforms
100%
Cross-device compatibility

Recommendation

"

Hassan built our field operations app as a PWA and it has been a game-changer.

FH
Fatima Hassan
Operations Manager
Field Services Organisation (Confidential)
Client identity and full company name withheld per confidentiality agreement.