NOTE: Scammers and clients who are looking for charity, please don't waste my and your time! High-quality native iOS and Android, and Flutter apps wizard. I'm Oracle Certified Java developer with Master's degree in CS with 20 years of experience in developing not only Android and IOS projects, but also different projects that made me a great architect, complex issue solver and UX/Features improver in all aspects with experience in huge amount of libraries and frameworks such as Firebase, Parse, Spring, OpenAI and much much more. I'm the best in Android and iOS app development as I'm up to date with new technologies, features and tricks that Google team or Apple team announce. I have led all projects from scratch up to release with full understanding of OOP, SOLID, optimization, analisis and user experience. I'm proud of apps I made: Unfold, GuruShots, Frontstage, LiftDay, LiveMaster and others, so thanks to my clients that trusted me and gave me that opportunity. NOTE: Please do not be surprised by the large number of described technologies, that's even not all. 20 years is more than enough to be able to work with so many technologies! - Mobile: Android, IOS, Crossplatform(Flutter). - Android(All): Java, Kotlin, Dart(Flutter). - iOS: Swift, Dart(Flutter). - Backend: Spring Boot, Grails/Groovy, XML, JSON, REST, XSL/XSLT. - DB: SQLite, Oracle, MySQL, DB2, PL/SQL, XMLDB, PostgreSQL. - Severs: Jetty, Tomcat, Apache, IBM Websphere, Parse server. - Libraries and Frameworks: Firebase(All), Gradle, Spring-Android, RoboSpice, Retrofit, ORMLite, Google Services SDK, iOS Extensions, Square libraries, CocoaPods, Parse SDK, Backendless, Layer SDK, AfNetworking, Alamofire, Hearst-DD/ObjectMapper, Facebook SDK, Twitter SDK, Instagram Kit, Flurry SDK, GoogleAppIndexing, Grails, Spring, Struts/Struts2, JPA, Jespa, Hibernate, Ant, Web Services, JMS, JUnit, pi4j(Raspberry Pi, Orange Pi), FFMPEG, DexProtector, Flutter, Bloc, Riverpod, Lottie, Giphy, Algolia, Mapbox, Hive, Spotify, Freezed, RXDart, OpenAI. -Tools: Git, SVN, Intellij Idea, XCode, Android Studio, Jira, YouTrack, Zeplin, Sketch, Figma, Bitrise, Github Actions, Codemagic. -Methodologies: Scrum, Kanban. - Experienced in apps that included: Social, Chat, IM Messaging, Map, Filtering, Search, E-commerce, In-app billing/purchases, Store, Fitness, Photos, Videos, Voice, Processing, Recording, Player, Event, Backup, Image, Contacts, Calendar, Share, Push, Interactive, Notifications Content / Service extension, OBB, Expansion, Deep link, Navigation, Animation, Crop, File, Upload, JSON, REST, API, Library/Gallery, Paging, Storyboard, Support multiple screen sizes, Full stack, Best practice code, Convention, OOP, Play Store, Itunesconnect, TestFlight, OpenAI, AI integration, ChatGPT.

Need some code? I got some code! I specialize in hybrid mobile apps having 9+ years experience, specifically written in the Ionic framework. I also am able to provide React, Angular and NodeJS Services. Whether it is a brand new app, bug fix, or feature addition; I'm your guy!

I'm a UI UX designer with over 10 years of experience in UX & UI Design, helping companies build intuitive, engaging, and high-performing digital products. UI UX Design is my main skill. I made 200+ projects using Figma, Adobe Illustrator, Adobe Photoshop. 🎯 What I bring to your product as a UI UX Designer UIUX designer: ✔️ Over 10 years of commercial UI UX Design experience, web design, and mobile app design ✔️ A results-focused user experience design: as a UI UX Designer, I create user experience strategies that boost usability and drive user engagement, leading to conversion increases of up to 150% for previous clients. ✔️ As a UI UX designer, I design clear user flows that guide users effortlessly through websites and applications. ✔️ As a UI UX Designer, I develop detailed wireframing to map out user journeys and interface structure. My Prototyping expertise allows me to test and refine design concepts before implementation. I’ve delivered 5,000+ wireframes and over 150 prototypes, helping streamline project workflows and reduce the need for costly revisions. ✔️ As a UI/UX Designer, I prioritize user experience design, ensuring that every interaction is intuitive and seamless. My approach to user interface design focuses on creating clean, and accessible experience ✔️ As a graphic designer, I create UI graphics, icons, and branding assets using Adobe Illustrator. As a UIUX Designer, I use Figma for high-fidelity wireframes, interactive prototypes, and user interfaces that support seamless team collaboration. I also use Adobe Photoshop for web and mobile visuals, and Adobe XD to build interactive prototypes and validate user flows before development. ✔️ Web & Mobile UI design: As a UI&UX Designer UI & UX designer, I focus on mobile app design, web design, creating an intuitive user interface design that increased user engagement by 40%. My mobile UI design ensures a seamless user interface with a consistent look and feel across both iOS and Android. ✔️ With deep expertise in WordPress and web design, I design and develop fully customized react and ecommerce websites. As a UI UX designer, I prioritize a web design that is visually appealing and highly functional. I’ve crafted and optimized 50+ websites, focusing on intuitive navigation and layouts that drive conversions. ✔️ I have expertise in GUI Design and mobile app design, ensuring interfaces are user-friendly and engaging. ✔️ I'm a UI & UX Designer with extensive skills in Graphic design. I create brand-aligned digital experiences, provide logo design services, and create a strong visual identity. ✔️ As a UX/UI designer, I specialise in Figma design and mobile app design ✔️ I've got deep experience in UX & UI designer 📊 My Achievements in Numbers: 🔶 UI UX Designer for a Logistics SaaS application built on React: ▪ Improved pharmacy order processing efficiency by 200%. ▪ Reduced human error in order fulfillment by 50% through enhanced user interface design ▪ Accelerated checkout process by 30%, minimizing customer drop-offs. ▪ Cut manual work by 70%, streamlining workflows and boosting productivity. 🔶 UI UX Designer for a Furniture ecommerce website: ▪ Achieved 15% increase in revenue through UX improvements. ▪ Reduced cart abandonment by 30% with a more intuitive UI redesign. 🔶 UI UX Designer for a Health Mobile App: ▪ 2x user retention by redesigning the mobile app design ▪ 3x onboarding speed through streamlined user flow and interactive prototyping Why should you hire me as a UI UX Designer? ▪ 10+ years of experience in UX & UI, Web Design, and Mobile App Design. ▪ 190+ successful projects across a wide range of industries, including ▪ 150+ happy clients who have seen tangible business growth. ▪ Expert in Figma, Adobe XD, Adobe Illustrator, WordPress, React, ecommerce ▪ Delivered high-impact prototypes in record time for urgent product launches and investor demos. ▪ Designed cross-platform experiences for web, mobile (iOS & Android), and desktop applications, ensuring visual and functional consistency. ▪ UI UX designer shopify, UI UX designer saas figma, UI UX designer ai, UI UX designer crypto game ui ux designer ▪ 200+ projects - from enterprise SaaS dashboards to high-converting e-commerce stores. ▪ 5000+ wireframes & 150+ prototypes created to streamline development and reduce costly revisions. ▪ 20+ lectures and webinars conducted for junior and mid-level UI/UX designers ▪ 30+ design awards and professional certificates I've earned over the last years ▪ 90+ web development projects in collaboration with a web developer and interior designer ▪ 300+ proven records for UI UX Design projects ▪ UI UX Design contracts with 100% JSS Looking for a expert UI/UX Designer UI UX Designer UIUX designer UXUI designer who can take your product to the next level and drive business growth? Let’s connect! ☎️

Top Rated Plus | Top 10 Machine Learning Agency on Upwork | $500K+ Earned | 8+ Years in AI & Software Engineering I'm an AI Engineer building production-grade AI agent and RAG systems, not simple prompt wrappers. With 8+ years in software engineering and AI development and $500K+ earned on Upwork, I hold Top Rated Plus status and our team is ranked among the Top 10 Machine Learning agencies on the platform. I work with companies that need an AI system to actually run in production, handle real user traffic, and stay accurate, not a demo that breaks on the first edge case. As an AI Engineer, my core work covers retrieval-augmented generation pipelines, agentic workflows with tool calling and structured outputs, prompt engineering, and LLM integration with OpenAI, Anthropic, and Gemini APIs. This is the kind of system clients need an AI Engineer for: not a chatbot that answers FAQs, but an agent that retrieves the right information, calls the right tools, and follows through on what the user actually needs, with hallucination reduction and evaluation built in from the start. As a Machine Learning Engineer and Data Scientist, I build systems for structured and time-series data: demand forecasting, anomaly detection, biomedical signal analysis, and structural health monitoring. My data scientist workflow covers Python, scikit-learn, pandas, NumPy, and SciPy alongside deep learning frameworks including TensorFlow, PyTorch, and Keras, with experiment tracking and evaluation metrics to ensure models perform consistently in production. When a project needs predictive or classification models alongside the AI agent itself, I own that layer too as a Machine Learning Engineer. As a Computer Vision Engineer and software engineer, I build object detection, multi-object tracking, pose estimation, and image segmentation systems using OpenCV, YOLO, and deep learning architectures. Where this intersects with the AI Engineer work is in multimodal systems and computer vision agents: I work with Vision Language Models (VLMs) to build AI pipelines that understand images and video, not just text. Most AI Engineers only work with text. I bring production computer vision and deep learning experience on top of the LLM layer, which matters for any product where the AI needs to see, not just read. On the engineering side, I work as a Python developer and software engineer building backend services with FastAPI, vector databases including Pinecone and pgvector, and LangChain or custom orchestration for multi-step agent logic. When a project needs full ownership of both the AI layer and the surrounding application, I work as a Full Stack AI Developer, handling backend APIs, database design, and frontend integration so the AI system ships as a complete product, not just a backend script. I work with a specialized team that includes a computer vision PhD, deep learning researchers, and mathematical optimization specialists. This lets me scope larger systems, split orchestration, retrieval, and evaluation work across the team, and deliver a full AI Engineer and Machine Learning Engineer engagement faster than a solo contributor could, with the software engineering discipline of clean APIs, logging, and testing baked in from day one. Clients typically work with me when they need: - an AI Engineer to build a RAG pipeline, AI agent, or chatbot that actually works in production - a Machine Learning Engineer or Data Scientist to build predictive models or structured data pipelines - a Computer Vision Engineer to add visual understanding or VLM-based reasoning to an AI product - a Software Engineer who understands LLM orchestration, tool calling, vector search, and backend architecture - a Python developer who can own the full stack from model training to deployed API If you need an AI Engineer and a software engineer with the full stack from prompt design to production deployment, let's talk. Main stack: Python, OpenAI API, Anthropic Claude, Gemini, LangChain, LangGraph, LlamaIndex, FastAPI, Pinecone, pgvector, TensorFlow, PyTorch, Keras, OpenCV, YOLO, Docker, PostgreSQL, JavaScript, Git.

I help businesses, startups, and institutions turn real-world workflows into interactive AR/VR/MR experiences that improve learning, productivity, and engagement — blending technology, storytelling, and human-centered design. With 7+ years of experience in Unity 3D, HoloLens, ARKit, ARCore, and MRTK, I’ve successfully delivered 75+ XR projects across enterprise training, healthcare, digital twins, and smart city simulations — driving measurable results through immersive innovation. 🎯 What I Deliver AR/VR Industrial Training Solutions – Hands-on simulations for manufacturing, field operations, and logistics Spatial App Development – HoloLens 2, Meta Quest, and cross-platform AR experiences for enterprise and education Digital Twins & Interactive Prototypes – 3D visualization, environment modeling, and real-time data integration AI + XR Integration – Emotion-aware, adaptive, and data-driven learning systems powered by AI frameworks Product Strategy & Management – Agile delivery, user research, and roadmap execution for XR applications 🧠 Core Technical Stack Unity 3D • MRTK • ARKit • ARCore • Vuforia • Meta Quest SDK • Blender • Azure Spatial Anchors • Photon PUN • C# • GitHub I combine deep technical knowledge with design thinking and cross-disciplinary leadership — ensuring that every XR experience is intuitive, scalable, and outcome-driven. 🏆 Featured Accomplishments Developed NYC AR Skyline, a live AR visualization app integrating real-time data and spatial anchors Delivered HoloLens industrial training simulators for global engineering clients Built digital twin environments for smart-city and sustainability projects Designed immersive education frameworks adopted by EdTech partners for STEM learning Managed distributed XR teams across the US and India under my agency, VeeRuby Inc, ensuring consistent delivery and quality 🤝 Why Clients Choose Me ✅ End-to-end ownership – From ideation to deployment, I manage the entire XR lifecycle ✅ Strategic mindset – Strong background in product management and AI-driven UX ✅ Transparent communication – Weekly updates, milestone tracking, and measurable deliverables ✅ Scalable collaboration – Support for both individual consulting and agency-level execution through VeeRuby Inc 🌍 Let’s Build the Future of Reality

⭐️ Top Rated Plus — Top 1% of Talent on Upwork 🕒 20,000+ Hours on Upwork ✅ 12+ Years of Experience ✅ 125+ Projects Delivered ✅ Proven Track Record with Fortune 500-Scale Systems I’m a Full-Stack Developer focused on building scalable, high-performance web platforms. I love solving complex problems, designing backend logic, and bringing ambitious ideas to life through clean architecture and efficient code. 💻 Technical Expertise Backend Development: Laravel, Python (Flask/Django), PHP, Node.js, Express Frontend Development: React, Vue.js, Next.js, Tailwind, Bootstrap DevOps & Cloud: Docker, CI/CD, AWS, GCP, Cloud Run, Nginx, Linux Database: MySQL, PostgreSQL, MongoDB, Redis AI & Data: Web Scraping, Data Analysis (pandas, NumPy), Machine Learning (scikit-learn, TensorFlow, Keras) Other Skills: API Integration, SaaS Platforms, Multi-Tenant Systems, REST & GraphQL I’ve architected, developed, and maintained multiple SaaS and enterprise-scale applications end-to-end, ensuring code quality, scalability, and performance at every stage. ⚙️ Personal Qualities • Enthusiastic about clean, modern tech stacks • Responsible and reliable under deadlines • Quick learner and detail-oriented • Passionate about challenging projects If you’re looking for a developer who can handle backend logic, complex integrations, and end-to-end delivery, I’d love to collaborate. Let’s build something great together.

I'm a unique blend of two worlds: a Full-Stack Developer who codes with precision and an Illustrator/Character Designer who brings ideas to life visually. I build fast, flawless web applications and craft custom mascots, illustrations, and visual identities that make brands instantly recognizable. Think of me as a full creative-engineering studio in one person: clean architecture under the hood, stunning visuals on the surface, and seamless user experience throughout. From 2018 to 2023 at Avanade, I grew from an Associate Software Engineer into a versatile product builder, contributing to major enterprise solutions for Microsoft. In 2023, I stepped into a senior role at Tableau (Salesforce), where I’ve been leading UI/UX initiatives, shaping design systems, and building interfaces used at global scale. What I Bring to the Table: Front-End Mastery React · Next.js · Vue · TypeScript · Tailwind · GSAP · Framer Motion Lightning-fast, responsive interfaces with smooth animations and pixel-perfect UI. Reliable Back-End Engineering Node.js · NestJS · Laravel · Prisma · Supabase · PostgreSQL · MongoDB Scalable systems, secure logic, and architecture built with long-term stability in mind. Illustration & Character Art Custom brand mascots / from playful to bold Hand-drawn or vector illustrations for websites, apps, marketing, and storytelling Icon sets, worldbuilding, UI artwork, and scene illustrations Animation-ready assets (Lottie, Rive, frame-by-frame) Tools: Procreate · Adobe Illustrator · Photoshop · Figma · After Effects UI/UX & Brand Identity Figma · Framer · Full design systems · Brand foundations and visual language E-Commerce & CMS Shopify (Plus & Hydrogen) · Headless WordPress · Tailored CMS setups DevOps & Workflows Git · Docker · Vercel · CI/CD · Agile processes Projects I Enjoy the Most: SaaS products with illustrated dashboards and personality-driven branding Fintech/crypto apps with friendly, human-centered design High-converting landing pages with character-driven storytelling Children’s apps, edtech tools, and playful game worlds Complete brand transformations: logo, character, and website in one package I communicate clearly, deliver on time, and treat each project with care as if it were my own. Your idea deserves both exceptional engineering and unforgettable design. Let’s create something that stands out. Send me your concept, and I’ll come back with ideas, questions, or even a quick sketch if it helps!

I’m John Maheswaran, a senior software engineer with 15+ years of experience building high-impact software across industries. I focus on Artificial Intelligence, Extended Reality (AR/VR/XR), RAGs and next-generation technologies as well as UX/UI and product focused design. I hold a PhD in Computer Science from Yale and a BA from Cambridge. 🔍 My Core Focus Areas: - AI/ML & RAG & Generative AI: OpenAI, LangChain, custom LLM fine-tuning, real-time AI agents - XR / AR / VR: Unity, WebAR, 8thWall, iOS ARKit, mobile XR experiences - Interactive Frontends: React, Next.js, Three.js, web-based XR interfaces - Backend APIs & Infrastructure: Python, Golang, NodeJS, PostgreSQL, AWS Lambda, Docker - Design: Figma, Miro, UX/UI design, wireframes, prototyping 🛠️ Tech Stack Highlights: - Languages: Python, Golang, Typescript, Javascript, Swift - Frameworks: React, NextJS, ExpressJS, NestJS, Ruby on Rails - XR/AR: Unity, WebXR, 3D Modeling & Rigging, Game Mechanics - Cloud: AWS, GCP, Azure, Serverless Architecture - CI/CD: GitHub Actions, Terraform, Kubernetes, Docker 🎓 Education: - PhD in Computer Science – Yale University - BA in Computer Science – University of Cambridge 🌟 What Sets Me Apart: - Deep expertise in AI + immersive tech (XR/AR/VR) - End-to-end product development: prototypes to production - Strong UX/UI design integration - Product focused thinking

🥇 TOP 3% globally on Upwork 💎 12 years of experience in the UX/UI design. 🚀 10300+ Hours Worked, 390+ Jobs Done, $700k+ Earned. 🧡 Strong portfolio. 6 awards, 3800+ followers. 🎯 Clients I worked with: Nestle, Microsoft, Pipedrive, Bus_com, Bosch Ukraine, IFS Ukraine I’ll help you with UX/UI design (websites, mobile apps, eCommerces, landings, SaaS, web apps, platforms, dashboards), web development (WordPress) and frontend work (HTML/CSS/JS). MY SKILLS ▔▔▔▔▔▔ 🔸 UX/UI design (web and mobile) 🔸 eCommerce design 🔸 SaaS/Web apps design 🔸 Landing pages design 🔸 Mobile apps design (iOS and Android) 🔸 HTML/CSS/JS/Wordpress 🔸 Graphic design, Illustrations 🔸 Responsive design 🔸 Analytics I use: 🔸 Figma 🔸 Adobe Photoshop 🔸 Adobe Illustrator ⭐️ I'll be glad to help you! 🔑 Keywords (Just to help my future clients to find my profile): Web Design, Figma, Graphic Design, User Interface Design, Mockup, User Experience Design, Wireframing, Prototyping, Mobile App Design, Responsive Design, User Flow, UX & UI, Web Development, Interaction Design, Landing Page, Website Redesign, Mobile UI Design, UI/UX Prototyping, Software Design, Adobe Photoshop, Style Guide, Website, Custom Web Design, CSS, App Design, Webflow, HTML, Adobe Illustrator, Visual Communication, UX Research, Web & Mobile Design Consultation, Adaptive Web Design, iOS, Journey Mapping, Adobe XD, Sketch, HTML5, Branding, Wix, Android, UX & UI Design, Illustration, Design Mockup, High Fidelity Design, Squarespace, Usability Testing, Information Architecture, SaaS, Interactive Mockup, Icon Design, JavaScript, Content Writing, Shopify, CSS 3, Product Design, Research Documentation, Mobile App, Copywriting, Button Design, User Experience Strategy, Elementor, Unbounce, Game Design, User-Centered Design, Design Enhancement, Functional Prototype, Framer, Website Asset, UI Graphics, Design & Usability Research, Ecommerce Website Development, Business with 1-9 Employees, Sketching, UI Animation, Logo, Home Page, Product Management, Figma to Webflow Plugin, Product Roadmap.

Senior audio software developer, passionate about audio, technology, and music. CEO & Co-Foudner of Edge Audio Labs, a company specialized in audio and music software development. My team and I build audio products end to end, including audio plugins, desktop and mobile apps, DSP, AI for audio, cloud backends, embedded systems, licensing, QA, UI/UX, and launch-ready product support. My expertise includes C++, JUCE, Python, PyTorch, ONNX, FastAPI, AWS, Vercel, VST3, AU, AAX, iLok, Audinate Dante, AoIP, and cross-platform development for macOS, Windows, iOS, Android, and embedded environments. We’ve worked on analog emulation, AI vocal synthesis, voice and singing technology, cloud-based audio systems, MIDI and music analysis tools, AI audio analysis, embedded audio hardware, and distributed real-time audio platforms. I also bring real-world experience in live sound, theatre, and studio work, plus a musician’s perspective as a drummer and guitarist. This helps me understand both the technical and creative side of audio products. Former college professor in the Audio Technology Department at ORT University, with strong experience leading teams and turning complex ideas into polished products.