Kaleelur Rahman

Led both mobile application and backend development while actively contributing to technical decision-making, system architecture, and overall product direction. Designed and developed scalable features for Android and iOS applications, integrated third-party services, and optimized backend performance to improve system efficiency and reliability. Guided team on best development practices, review implementations, and ensure high-quality releases while managing TestFlight and App Store deployments.

Worked with international clients to design and develop mobile applications, backend systems, REST APIs, admin panels, and business solutions across multiple industries. Handled full project lifecycles from requirement gathering and UI/UX planning to development, testing, deployment, and post-launch support. Delivered 20+ successful projects while helping clients troubleshoot issues, optimize application performance, improve user experience, and implement scalable architectures.

Led the development team and played a key role in technical planning, architecture decisions, and overall system design. Provided technical guidance and mentorship to the team, ensured scalable and maintainable implementations across the platform. Worked extensively on client-side integrations with REST APIs, managed CI/CD workflows and version control, investigated and resolved issues, and collaborated closely with UI/UX teams to ensure design feasibility and smooth user experiences across applications.

Developed and maintained cross-platform mobile applications using React Native, implemented new features, resolved bugs, and handled application publishing and updates for both the App Store and Play Store. Also contributed to the web frontend using React.js, including migrating the entire application from an older version to a newer version while resolving dependency conflicts, compatibility issues, and performance-related problems throughout the upgrade process.

Contributed to enterprise-level menu management solutions using Angular and Spring Boot while working in agile development environments and collaborating through Jira workflows.