Khalid Khan Email & Phone Number

United States

As a Lead React Native Developer, I led projects, guided developers, and collaborated with product teams to build essential features. My responsibilities included developing insurance, NFTs, crypto transactions, and transaction history, as well as in-app purchases using RevenueCat.Incorporating the latest blockchain technology, I implemented advanced trading functionalities such as seamless coin trading, bridging for Ramp, CoinBase, and Coinflow, and a Native Swap feature using the Kresus Labs SDK. This included real-time gas fee calculations, trading quotations, and transaction validation for secure and efficient trading.I also enhanced the app with detailed NFT and crypto graph visualizations, utilizing react-native-reanimated to create dynamic, interactive charts for real-time balance updates and historical performance tracking. This provided users with comprehensive insights into their assets, including portfolio performance and NFT collections. Additionally, I refined features for native crypto transfers via QR scanning and address input, and developed a sophisticated support chat design, ensuring a seamless user experience across the platform.

California, United States

React Native Developer | CointelegraphI developed a React Native application for Cointelegraph, a leading independent digital media resource in blockchain technology, crypto assets, and fintech trends. The app offers users real-time updates on the latest crypto news and integrates advanced features for a seamless experience: - News Integration: Users access the latest updates on blockchain and cryptocurrency news. - Audio Player: Implemented a backend-driven audio player for smooth news playback. - Real-Time Data and Graphs: Integrated real-time crypto data and dynamic graphs to display current market trends and historical performance. - SQLite Caching: Utilized SQLite for efficient data caching, ensuring a smooth and fast user experience. - GraphQL Integration: Employed GraphQL for flexible and efficient data querying, enhancing the app’s performance and data management.My contributions supported Cointelegraph’s mission to educate and inform readers about digital currencies and emerging technologies, providing a robust and engaging platform for accessing comprehensive news and insights.

Islamabad, Islāmābād, Pakistan

JavaScript Engineer / React Native DeveloperI've been working as a freelancer and serving the industry with my hands-on skills: ReactJS, React Native, Javascript, Typescript, React Query, Redux Toolkit, Redux, and many others.

Pakistan

React Native Developer | NumuI developed a comprehensive mobile application for Numu, an innovative platform that connects top brands with social media influencers and leading PR agencies. The app is designed to enhance brand reputation, traffic, and sales through high-quality and cost-effective content. Key features include:Influencer and PR Agency Integration: Facilitated seamless connections between brands and influencers or PR agencies, streamlining collaboration.Content Management: Enabled users to manage and track high-quality content efficiently.Performance Metrics: Implemented features to boost reputation and monitor traffic and sales impact through detailed analytics.My role involved creating a user-friendly platform that supports Numu’s mission to deliver impactful and affordable content solutions for brands and influencers.

Northern Punajb Rawalpindi, Pakistan

Junior React Native Developer | Millao Real EstateI developed a React Native application for Millao Real Estate, a SaaS platform designed to streamline operations for real estate agents and brokers. The app facilitates efficient cross-platform collaboration and documentation management, deal flows, route optimization, and marketing efforts. Key features include:Cross-Platform Collaboration: Enabled seamless communication and collaboration among real estate professionals across different platforms.Documentation Management: Implemented robust tools for managing and organizing real estate documentation.Deal Flows: Integrated features to track and optimize deal processes and transactions.Route Optimization: Developed intelligent route optimization tools to enhance travel efficiency for property visits.Marketing Tools: Included advanced marketing functionalities to support promotional activities and client engagement.My work supported Millao Real Estate's mission to enhance productivity and efficiency in the real estate industry through innovative solutions.

Karachi Pakistan

Worked as Linux System administrator.DDoS Attacks mitigationWeb Hosting & Management of Int’l and local Clients websitesFull Management of Linux based servers as well as Windows serversSSL Order, Integration & Deployment on Corporate Client's websitesServer HardeningInstall of upgrades and patchesManaging onsite & offsite backupsPanels: cPanel/WHM, VistaCP, CWP, WebminWebservers: Apache, Nginx, IISProxy: Nginx, HaproxyMail Servers & Clients: Exim, Dovecot etc / Outlook & Thunderbird ClientMalware/Antivirus: Maldet(LMD), ClamavFTP Servers: Pure-FTPD, Pro-FTPDStreaming: WowzaOS Server/Desktop: CentOS, RHEL, Ubuntu, FreeBSD,VMware ESXi Kali, CloudLinux, Windows 2012/2008 etc