- Managed and maintained the company's server infrastructure, ensuring high availability and performance.- Developed a custom shell script to automate the creation of Docker images, uploading them to Amazon ECR, and deployed those images to EC2 instances using an Azure DevOps pipeline.- Engineered a scalable video and audio calling system using Kurento Media Server, WebRTC and TURN servers.- Implemented an automated load-balancing solution that dynamically spun up media and recording servers on demand, integrated with Route 53 for DNS management.- Designed and developed a lightweight call recording feature that captured and uploaded call data to S3, leveraging Amazon EFS for medical report storage.- Integrated Twilio API for SMS and medication-related alerts within a NestJS-based system.- Worked with and integrated various medical devices, including HMS6500, BP-2, oximeters, and O2 Ring, enhancing patient monitoring capabilities.- Maintained and upgraded a legacy Python server built with the Tornado framework, modernizing the system with updated libraries and features.- Collaborated on developing new features and enhancements in the Angular frontend.

- I single-handedly developed the OneStream Live app, starting from scratch and taking it all the way to production. Throughout the development process, I employed top-notch design patterns, such as render props and custom hooks. Moreover, I created custom UI libraries for nearly 90% of the app UI components, eliminating the need for external UI libraries. This approach not only minimized the app size but also significantly enhanced its performance.- Developed a custom video player with features such as subtitles, seek forward 10s and backward 10s, and the ability to change the player button color.- Developed a custom file-uploading functionality that split large video files into smaller chunks and uploaded them to the S3, And by incorporating pause and resume options this implementation significantly enhanced the upload process, leading to a more satisfactory user experience.- Implemented OAuth 2.0 authentication with Google, Facebook, Apple, and Twitch.- Integrated third-party cloud storage services such as Dropbox, Zoom, Frame.io, Box, Google Drive and S3 bucket.- Added multiple dark, light, and custom theme support to ensure an exceptional user experience.- Engineered Studio feature using WebRTC, facilitating seamless virtual collaboration and communication within the platform.- Furthermore, I seamlessly integrated a In-App purchase payment gateway into the app using Chargebee. This integration empowers users to effortlessly subscribe to professional, standard and basic plans, thereby unlocking premium features of Onestream.

- Architect Front-End React application from scratch following Atomic Design Principal, employed top-notch design patterns, resulting in a 45% increase in the reusability of components.- Leveraged Storybook for component-driven UI development, enhancing the reusability and maintainability of UI elements, and enabling a more modular and scalable approach to front-end design..- Worked on creating pages that were responsive by using Material-UI and Styled Component.- Implemented the feature of uploading multiple video files to S3 through tusd and uppy, incorporating functionalities such as video playlist management and image editing.- Added full French, and German Localization support with seamless language switching support.- Actively involved in code review and quality check process.- Added multiple dark, light, and indigo theme support to ensure an exceptional user experience

- Developed robust software at Arkhitech with high usability and best practices to work in a production environment with a focus on speedy delivery and high quality with the best user experience.- Developed user-driven experiences on the company's highlight products such as Foodnerd/Howmuch. Built customer-facing interfaces dealing with large amounts of data in an asynchronous manner. Improved understanding of Flutter and React.js/React Native. Followed core design patterns and architectural constraints.- Worked on Robson.ai, a major Canadian data aggregation and user-driven platform. Dealt with parsing a large variety of data from the frontend such as speech, video and text. Wrote maintainable and flexible code for an app with over 200K+ downloads. App is built in React Native.- Built a major distributor app from scratch in Flutter using multiflavour paradigm.- Oversaw development of Foodnerd POS and provided solutions to performance hangups and major architecture problems.- Reviewed pull requests of junior developers thoroughly and resolved live issues in a high-pressure environment.- Gather and understand business requirement, create rest apis using java spring mvc and integrate it on Frontend using different technologies like Angular2+, JavaScript, jQuery, HTML5 and CSS3.

- Revamped and fully optimized the foodnerd.pk and foodnerd POS Applications while vastly improving their architecture and speed.- Implemented login via email or phone with Twilio SMS integration and sendgrid email templates.- Added full Arabic, French, German and Urdu Localization with seamless language switching support.- Upgraded critical libraries from deprecated versions to their latest versions while migrating the code to support the upgraded libraries.- Fixed bugs and Tested/De-bugged using Firebug and provided support services for the application.- Applied optimization techniques to reduce page size and load times to enhance user experience. - Used Object Oriented Programming and HOC concepts to develop UI components that could be reused across the application.

- Worked on Robson.ai, a major Canadian data aggregation and user-driven platform. Dealt with parsing a large variety of data from the frontend such as speech, video and text. Wrote maintainable and flexible code for an app with over 200K+ downloads.- Designed and developed Pakistan's No.1 POS system using best practices in mobile development and pushing the limits of what is possible in React Native- Built a native SDK for compatibility with thermal printers like the Sunmi thermal printer.- Built and integrated Bluetooth, wifi, and cable printer into the app.- Added Arabic printing support to the ordered receipt.- Also built a mechanism for parsing and processing thermal prints and bundled it with the SDK. This feature allows POS systems utilizing the SDK to scan thermal prints for backwards data integrity.- Furthermore, I integrated offline support by utilizing SQLite database, allowing users to place customer orders, generate order receipts, and view sales reports without an internet connection.

- Led the migration process from Context API to Redux Toolkit for state management.- Implemented Redux Saga for handling complex asynchronous actions, enhancing data flow and ensuring efficient application performance.- Implementing new features and improving existing ones.- Elegantly used React-Router techniques Axios service to retrieve data from server synchronously in background without interfering with the display and existing page in an interactive way.- Maintaining customer order data locally using sqlite db.- Used MaterialUI to create visually aesthetic graphs and charts to display user sales report data results.- Project is implemented by following TDD using jest framework for React along with Enzyme test utilities.- Upgrading and updating deprecated packages

- Worked as a angular developer at fiver. In this tenure, I have Lead and worked on many projects. Mainly I worked on ecommerce and ERP Solution using different technologies like Angular, React, Redux, NgRx. RxJS, JavaScript, jQuery, HTML5, CSS3, etc.- Building stable and maintainable codebases using Angular.- Creating new features, functionality and capabilities on website.- Performing Bug fixes and code reviews.- Collaborating with designers to ensure designs were efficient and technologically sound.- Upgrading and updating deprecated packages.