Abdul Hannan

- Built and maintained the Flutter/Dart mobile apps with Clean Architecture and BLoC - Built and operated CI/CD pipelines in GitHub Actions, cutting test suite runtime from 40 to 8 minutes - Halved the release cycle from 2 weeks to 1 week with spec-driven development using OpenAI Codex - Added unit, widget and regression tests across the app - Integrated Segment, Mixpanel and Customer.io analytics

- Built reusable Angular components (TypeScript, NgRx, Sass) and the .NET Core microservices behind them - Built CI/CD pipelines with Docker and Azure DevOps, cutting manual testing and deployment effort - Added Claude Code agents to the workflow to review pull requests and build features - Designed MySQL schemas, queries and migrations - Applied OOP and SOLID principles across Angular and .NET Core

- Shipped two production apps to the Google Play Store, built end-to-end in Flutter and Dart - Converted Figma designs and animations into Flutter interfaces for Android, iOS and Web - Implemented state management with Provider and GetX - Integrated the Hasura GraphQL engine for real-time data sync - Worked in an Agile team with Jira

- Built the UI layer with Angular, TypeScript, HTML5, CSS3 and Bootstrap - Built reusable TypeScript components, services and resolvers to consume REST APIs - Implemented NgRx-based state management - Resolved 50+ open issues over 3+ months of solo ownership of an inherited codebase