Hi Thank you for visiting my profile. I have been developing iOS/Android Apps for over 6 years in great Mobile Company in Ukraine. Main focused on the Tinder like Dating apps, WhatsApp like Chatting apps, Video conference Apps and web-based mobile applications with XMPP, Openfire, OpenTOK, PubNub, Quickblox, WebRTC, RTMP/RTSP/HLS, Restful Web services, MapKit, JSON data encoding/decoding and web backend apis. My main skills: - Media Streaming: Wowza, SoundCloud, HLS, RTMP, FFMpeg, H.264, H.323, VP8, MPEG-4, Speex, G.723, G.729, gstreamer, vlc, JWPlayer, ExoPlayer - Social Network: Facebook, Twitter, LinkedIn, Instagram, Youtube, Pinterest, Vimeo, Google+ - Chat & Messaging Engine: XMPP, Jabber, Openfire, OpenTok, WebRTC, Quickblox, Jabber, Ejabberd - Video Conference: VOIP, SIP, Asterisk, FreePBX, VicDial, OpenSIPS, Kamailio, Freeswitch - Video/audio/image processing: OpenCV, GPU Image, CoreAudio, EZAudio, Pitch Control, Bass, AVFoundation - Web Service: XML/JSON, REST/SOAP - Cloud backend: Parse.com, Parse SDK, Parse REST, Parse Cloud Code, Amazon S3 EC2 AWS, Firebase, Twillio - Place Service: Google Map, Foursquare, Yelp, Geolocation, GPS - Cloud services: iCloud, Rackspace, Azure, AWS, EC2, Dropbox - Back-end: RESTful API, Parse.com, Amazon Web Service & Amazon S3, GAE, XML, JSON - Source control: Mantis, BaseCamp, Huddle, Git, Github, Bitbucket I am always looking forward to long-term relationship based on client satisfaction!

Are you looking for a developer who doesn't just write code, but builds products that scale? With extensive experience in React, Next.js, and React Native, I help businesses transform complex logic into seamless, user-centric digital experiences. having Rich experience in developing applications with complex business logic and always adhere to adding business value to the product with user centric approach. developed user engaging applications with state of the art cutting edge technologies including Reactjs, React Native, Nextjs and TypeScript. Here is the list of technologies I use: Languages: JavaScript, TypeScript, HTML, CSS Client/Frontend Side: ReactJS, ReactNative, NextJs Bootstrap, Tailwind, Material, Redux, SCSS API Integration: Social Login, Stripe, In-App Purchase, Google maps, Firebase, PubNub Project Management/Workflow: Github, GitLab, Slack, Trello, ClickUp I find myself a responsible, self-motivated, solution-driven developer and always meet clients expectations in terms of code quality and turnaround.

A passionate and detail-oriented Full Stack Developer with over 6 years of experience building fast, scalable, and reliable applications across web and mobile platforms. I specialize in modern technologies like Ruby on Rails, Laravel, React, Next.js, and React Native, delivering solutions that are not only technically sound but also user-centric and performance-optimized. From SaaS platforms to AI-powered mobile apps and custom WordPress plugins, I’ve worked with both startups and established businesses — remotely and onsite — to turn ideas into fully functional products. 🛠️ Tech Stack: ܍ Frontend: React, Next.js, Tailwind CSS, Bootstrap ܍ Backend: Ruby on Rails, Laravel ܍ Languages: JavaScript, TypeScript, Ruby, PHP ܍ Mobile: React Native, Expo ܍ Databases: PostgreSQL, MySQL ܍ DevOps & Tools: Heroku, AWS, Git, GitHub, Bitbucket ܍ Testing: RSpec, Capybara ܍ Integrations: Stripe Connect, Twilio, PubNub, QuickBooks, One Signal, WildApricot (SSO) ܍ Others: WordPress Plugin Development, RESTful APIs, Third-party API Integrations, CI/CD Pipelines 💬 Let’s Work Together If you're looking for a reliable, technically skilled, and business-aware developer, I’d love to hear more about your project. Whether you need backend architecture, frontend polish, or API magic, I’ve got you covered. 📩 Let’s connect and build something great together!

Welcome to my profile. I'm an experienced and professional mobile and software developer doing freelance, working remotely (telecommute) and looking for great projects to work on. Summary of Qualifications • Expert understanding of core mobile technologies standards • Development of software, mobile web apps and hybrid mobile apps (PhoneGap) • Solid understanding of how the android OS works for the best performance • Passionate about all aspects of development • Modern tooling and workflow • Ability to write high-performance, maintainable and reusable code • Appreciation for quality, usability, user experience (UX), accessibility and compatibility • 1.5+ years of experience • Highly motivated, self-starter, fast learner, hard worker, organized, attentive to details and a team player • Good communication skills. Fluent in English , both written and verbal • Sense of aesthetic and design • Always up-to-date with the latest technologies, techniques, optimizations and best practices My expertise is -Native Mobile App iOS/Android Mobile Apps(Social Networking Mobile App, Chat & Communication Base Mobile App, Geolocation & Phone Tracking Mobile App and E-Commerce & Business App, Payment Mobile Apps.) -Hybrid Mobile App Ionic, Meteor.js, Sench Touch, Framework7 -Web App MEAN application stack (MongoDB, Expressjs, Angularjs and Node.js). Backbone.js, Ext.js, DHTMLX -Web Service PHP, Javascript, Node.js based RESTful Webservice, Real-time communication providing Server Development. Thank you very much.

With 4+ years of experience in full-stack development, I specialize in building scalable, high-performance web applications using Django, FastAPI, Next.js, NestJS, Node.js, and Docker. Whether you need secure, optimized APIs, real-time messaging solutions, or AI-driven automation, I can help bring your vision to life. 💡 What I Offer 🏗 Backend Expert: Django, FastAPI, Node.js, NestJS, Express.js, TypeORM 🎨 Frontend Mastery: React, Next.js, JavaScript, TypeScript, 🛠 DevOps & Cloud: Docker, Kubernetes, CI/CD, AWS, DigitalOcean 📊 Databases: PostgreSQL, MongoDB, Oracle, MySQL, RDS 🤖 AI, Automation & Real-Time Communication 🚀 AI & Bot Development: AI-driven chatbots, workflow automation 💬 Real-Time Communication: PubNub, WebSockets, Twilio 📱 Messaging APIs: WhatsApp API, Meta API, Twilio SMS 🧠 Agentic AI: AI-powered assistants, autonomous agents I focus on efficiency, security, and seamless user experience to ensure your project is scalable, maintainable, and high-performing. Let’s build something great together! 🚀

Mayur is an entrepreneur, Product guy, Blockchain Evangelist, and a firm believer that decentralization and peer-to-peer governance systems can help define a new path for the progress of humanity. I have been into research & development since 2015. It is my passion to explore new things and grab opportunities where found. Since 2015 I have been into product design and Engineering leveraging Blockchain, Data Science and IoT Technologies for startups and Enterprise across 20 countries. I and My team have recently worked on the following projects: 1: XMPP Based Chat Application design and development 2: IoT Product Development leveraging Golang as the Backend Technology 3: Push Notification Microservice Development leveraging PubNub and Golang 4: News Feed Design and Engineering leveraging Cassandra and Golang 5: Stock Exchange POC leveraging Golang, Rocks DB and MariaDB If you believe your idea is the next game-changer and need a team member then hire me.

I specialize in optimizing last-mile operations with over two years of hands-on experience in fast-paced fulfillment environments. My tenure as an Operations Team Lead has equipped me with a deep understanding of capacity planning and operational execution, particularly for high-value product categories. I have a strong background in operational analytics, where I successfully streamline processes and drive resource optimization by monitoring workflows of approximately 1,500 daily operations to serve customers within ~500km radius. My proactive approach allows me to identify gaps and implement solutions that enhance supply chain efficiency and customer satisfaction. If you are looking for a detail-oriented professional who can elevate your operations and foster growth, let’s connect to discuss how I can contribute to your success.

Here are a few bio variations for the short "Bio" / tagline field on Upwork (the one that sits under your name, usually 150 characters or so). I'll give you a few options at different lengths so you can pick what fits. Short Bio Options (Under 150 chars — for the tagline field) Option 1 — Stack-focused: Full-Stack Engineer | 4+ yrs shipping React Native & Next.js apps to App Store, Play Store & production. AI, Firebase, AWS. Option 2 — Outcome-focused: I ship production apps — not prototypes. React Native, Next.js, Node.js, and AI integrations. 4+ years, multiple live apps. Option 3 — Confident & direct: Full-Stack Dev with shipped App Store apps. React Native + Next.js + AI (GPT-4, Whisper). I build it, deploy it, and maintain it. Option 4 — Niche-leaning (AI angle): React Native & Next.js engineer specializing in AI-powered apps. GPT-4, Whisper, n8n automation. Live on App Store & Play Store. Medium Bio (300–500 chars — for "About Me" style sections) Full-Stack Software Engineer with 4+ years building production-ready apps across mobile and web. I work in React Native, Next.js, and Node.js, with hands-on experience integrating AI (GPT-4, Whisper) and deploying to AWS. My work is live on the App Store and Play Store — including MWI AI and Quality Boat Salvage. I take full ownership: design to deployment to maintenance. Long Bio (for LinkedIn "About" section or Upwork "Specialized Profile" intro) I'm a Full-Stack Software Engineer based in Karachi, Pakistan, with 4+ years of experience shipping production apps that real users rely on every day. My focus is on the intersection of mobile, web, and AI — I build React Native apps that ship to the App Store and Play Store, Next.js web platforms optimized for performance and SEO, and AI-powered features using GPT-4 and Whisper that solve real workflow problems. Recent shipped work includes MWI AI (an AI documentation platform for marine engineers, live on the App Store), Quality Boat Salvage (real-time maritime logistics on iOS, Android, and web), and a custom Zendesk chat widget that cut customer response times by 40%. I also handle the parts most developers avoid: AWS EC2 deployments, PM2 process management, App Store submissions, and n8n automation pipelines that connect everything together. Open to freelance projects, contract work, and remote full-time roles. If you have something to build, send me a message — happy to scope it out.

I am an expert Mobile app developer both with iOS and Android platforms. I have a master degree in computer system engineering and I am used to work on high performance and high scalability projects. I'm also a UX/UI designer and Animation expert. Over the last 7 years I’ve worked on more than 30 native iOS apps including client, in-house and own App Store apps. If you are looking for a highly skilled iOS & Android development expert with depth of knowledge, professional attitude, excellent communication and the highest code quality, I am the person you are looking for. My experience in - Native iOS(iPhone, iPad, iPod)/Android app development - Swift/Objective-C/Java - Social Networking, Messenger, Live-time Chatting/News Feeds - Dating, Photo/Video Filtering/Editing/Commenting/Sharing - Geo-location, GPS integration, Map Control - Ecommerce/Shopping/In-app Purchase/Ads Marketing - Food (Restaurant Menu/Recipe/Order/Delivery) - Health/Fitness(Health Tracking, Barber/Nails Salon etc.) - Booking Appointments ; Drivers/Taxi, Car rental, Hotel Rooms Reservation etc - Mobile Games - 2D & 3D (Educational Kids Game, Fun/Puzzle, Cards Game, Casino, Bingo Slots etc.) I'm passionate about quality and maintainability when it comes to code and application architecture. Thanks! Martin

linkedin.com / paraswadehra Senior Manager with twenty years of architecture, engineering and management/leadership experience, with a track record of driving and delivering projects on tight timelines by balancing resources across priorities. Demonstrated success in building, managing and leading multiple on-site and offshore teams at the same time. Experienced in leading customer interactions to understand customer requirements and translate them to service or product offerings. Distinguished speaker and organizer at various conferences and user group events. Mentor to several engineers at various companies.