Hire the Best XMPP Specialists

I’m a seasoned Full Stack Developer with a wealth of experience, having dedicated 8 years to the roles of Software Developer/Architect. My specialization lies in the realm of Mobile App development with a particular focus on creating innovative solutions for a wide spectrum of industries, with particular emphasis on chat-related and AI-related applications Initially, I had started my journey with “Accenture” and after having a good enough experience and knowledge I’ve started to work on my own as an independent freelancer" I’m completely available with an excellent solution and provide the best industry experience. --> Our experience & Area of expertise: I’m very passionate about creating intelligent systems that push the boundaries of human-computer interaction. With 3 years of experience in the field, I have honed my skills in developing cutting-edge AI solutions and bringing transformative ideas to life. Related to Database; I've worked with SQL relational databases like MS-SQL, MySQL, PostgreSQL, Oracle DB and no SQL databases like MongoDB, DynamoDB and Elastic search. I have strong hands on experience working with Firebase and have worked with following Firebase services as: -- Live Database -- Fire Store -- Firebase Functions -- Analytics -- Ad mob integration -- Notifications -- Test labs Worked well with the following Cloud AWS Services like below: -- Lamba -- Ec2 -- S3 -- Fargate -- Cognito -- Route 53 -- SNS -- Api Gateway -- EBS -- RDS -- Elastic search and Kendra. And good working knowledge with other Cloud Services : -- Azure -- GCP -- Linode -- DigitalOcean and Docker based images. Backend Development: I’m very good with ( Java as well as Node.js ). I’ve worked with following Java frameworks as below; -- Spring boot -- Spring MVC -- Spring security -- JPA, Hibernate -- JSF I have developed more than 100 applications in Mobile (Android/IOS), Desktop (Windows/Linux/Mac) and web applications for the different industries and their links such as; -- Instant Messaging/ Voice/ Video calling (WhatsApp/Telegram/Wechat) -- Food Delivery (UberEats/Swiggy) -- Cab booking apps (Ola/Uber) -- Hospital management (Doctor/ Patient appointment schedule) -- Booking system (Movie ticket booking / Postpaid/ Prepaid Recharges) -- Wallet management (Fund Transfer / Pay using wallets) -- Fantasy games (Dream11/ Sorare) -- Crypto based NFT minting platforms -- Dating apps (Tinder/ Bumble) -- Social media apps (Tiktok/ Facebook) -- Media streaming apps (Netflix) -- Fitness Apps Have a look few of our works that may interest you are as: =================================================== -> Instant Messaging: Okdone (like WhatsApp) Android: play.google.com/store/apps/details?id=io.okdone.chat Aapoon (like Telegram) Android: play.google.com/store/apps/details?id=go.socialchains.app iOS: apps.apple.com/in/app/aapoon/id1484191346 ==================================================== -> AI: AutoBiographer (Story Maker in written format) Android: play.google.com/store/apps/details?id=com.autobiography iOS: apps.apple.com/us/app/autobiographer/id6450035146 ArtiPic : AI Art Generator (Image Creator) Android: play.google.com/store/apps/details?id=ai.image.creator ===================================================== -> Dating: Hug Android: play.google.com/store/apps/details?id=com.hug.app iOS: apps.apple.com/in/app/허그-나를-위한-대화/id1568840820 Hihand Android: play.google.com/store/apps/details?id=com.hihand.app iOS: apps.apple.com/in/app/id6448904608 ===================================================== -> Fitness: Finutss Android: play.google.com/store/apps/details?id=com.finutss.metatrack.app ===================================================== -> Social Media: Adventure: The Bucket List App Android: play.google.com/store/apps/details?id=com.app.real4adventure Commune+ Android: play.google.com/store/apps/details?id=com.social.topg iOS: apps.apple.com/us/app/commune/id6450535334 Yeay Android : play.google.com/store/apps/details?id=yeay.tv.yeay IOS: apps.apple.com/us/app/yeay/id1070699048 Klokbox Family Memory Boxes Android: play.google.com/store/apps/details?id=com.klokbox iOS: apps.apple.com/us/app/klokbox-family-memory-boxes/id1611328703 ================================================== -> Streaming: Snibble (like Netflix) Android: play.google.com/store/apps/details?id=com.snibblecorp.snibble&hl=en_IN&gl=US iOS: apps.apple.com/us/app/snibble/id1464594506?l=lt Telly (Track TV Shows & Movies) Android: play.google.com/store/apps/details?id=com.telly.studios iOS: apps.apple.com/ca/app/telly-track-tv-shows-movies/id1589012731 ==================================================== -> Rental Booking: DriveNow (Car Rental App) Android: play.google.com/store/apps/details?id=com.drive_now ==================================================== Please take a look and ensure yourself that we are very good at delivering your requirements in a very professional way. Let’s discuss ahead.

I’m a Mobile App Developer with hands-on experience building and publishing production-ready apps for both iOS and Android — from initial development to final App Store and Play Store submission. I specialize in turning ideas or existing web apps into fully functional mobile applications, handling everything end-to-end including authentication, payments, push notifications, and backend integrations. 🚀 What I Do 📱 Build and publish mobile apps (iOS & Android) 🔄 Convert web apps into native apps using Capacitor 🔐 Implement secure authentication (Firebase, Google, Facebook, LINE, Apple, Phone OTP) 💳 Integrate payments (Stripe, 3D Secure, custom flows) 🔔 Set up push notifications using Firebase ☁️ Full Firebase integration (Auth, Firestore, Functions, Storage) 🎬 FFmpeg-based video & audio processing tools 💡 Mobile Development Expertise Capacitor & Cordova (custom plugins, native integrations) Native iOS (Objective-C) & Android (Java) Ionic, Angular, Vue (Quasar) REST API & backend integrations I ensure apps are: ✔ Stable and production-ready ✔ Fully compliant with App Store & Play Store guidelines ✔ Optimized for performance and scalability 🎯 Real Experience Built and published cross-platform apps from scratch Implemented multiple authentication systems across apps Integrated secure payment flows including Stripe Developed FFmpeg-based tools for video/audio processing Delivered apps with real users and production usage 🤝 Why Work With Me Clear communication and fast response Focus on long-term, scalable solutions Experience handling complete app lifecycle (dev → publish → maintain) Reliable delivery with attention to detail If you’re looking for someone who can take your app from idea to live on the App Store/Play Store, I can help you build it the right way.

I offer comprehensive expertise in Bahmni, OpenMRS, and digital health solutions, including EHR/EMR, HIMS, Telehealth, and interoperability standards like HL7 and FHIR,PACS, RIS, Dicom, Dicom4chee, Radiology. My services ensure seamless integration and customization for healthcare systems. Lab Management System Bidirectional Lab Device integration to LIS FHIR Training

I am a Multimedia Engineering student with a strong focus on the technical and computational side of the field — the part where mathematics, physics, and code intersect to create something you can see, hear, or interact with. Multimedia Engineering is not just about making things look good. At its core, it is about understanding how signals become images, how geometry becomes 3D objects, how data becomes intelligent decisions. That is the work I am passionate about and the work I deliver. My main areas of expertise: — Computer Vision & Image Processing: object detection, feature extraction, image segmentation, and real-time video analysis using Python, OpenCV, and NumPy/SciPy. I have built pipelines that process visual data reliably and efficiently. — 3D Graphics & Geometry Processing: programmatic CAD with Build123d and OpenCascade, mesh processing, 3D file format handling (STL, STEP, OBJ), and real-time graphics with Unity and C#. I am comfortable working with spatial data at both the mathematical and implementation level. — Signal Processing & Automation: DSP fundamentals applied to real problems — filtering, frequency analysis, and signal-driven automation. I write clean, well-documented Python that is built to last and easy to maintain. — AI & Machine Learning: practical ML applied to vision and multimedia tasks, not just running pre-trained models but understanding what is happening under the hood. What makes me different from a generic developer is context. I understand why a convolution works, what a mesh topology means, why a parametric CAD model is more valuable than a static one. That technical depth translates directly into better solutions and fewer back-and-forth revisions. I am early in my freelance career and selectively building a portfolio of serious, technically demanding projects. If your work involves processing, analyzing, visualizing, or automating anything in the physical or visual world — I want to hear about it.

Experience in: Google Ad Manager (fka DFP), Google Ad Exchange, Programmatic Stack, DV360, Header Bidding, Prebid, Publishing, Monetisation, Digital Media Publisher Clients: Bein Media, Brusselstimes[.]com, Intact Media Group, CME owned by Time Warner, Ringier, Alison[.]com Advertisers Clients: Mazda, Chanel, Candy Hoover, Haier, Frey Wille You can check my Linkedin profile for more details regarding my experience: George Stefanuca Previous Jobs: Former Head of Programmatic and Data for the leading broadcaster in CEE (ProTV part of CME) Former Head of Digital + TV in leading broadcaster and publisher in RO (Intact Media Group) Former Group Head of Sales for leading publisher in RO (Ringier) Former Group Head of Data and Business Intelligence for leading job portal (ejobs.ro) and real estate portal (imobiliare.ro)

Hello! My name is Aleksandr Kalinin. I have a double major in Math and CS. I have been programming professionally since 2006. Skills: C++ 11/14/17/20/23, STL, SIMD (SSE, AVX, AVX512), CMake, vcpkg, Conan, Boost, perf, VTune. Python, Data Science, NumPy, Pandas, Matplotlib. Rust, tokio. Algorithms, Data Structures, Computational Geometry, Optimization, Linear Algebra, Numerical Methods. Concurrent Programming, Multithreading, Lock-free Programming. CUDA, HIP, OpenCL, Compute Shaders, Halide, TBB, OneAPI. Graphics Programming, Vulkan, Metal, DirectX 12, OpenGL, HLSL, GLSL, MSL, Slang, Real-time Rendering, Custom Engine Development. Unreal Engine 4/5, Godot, Cocos2dx Machine Learning, Deep Learning, PyTorch, TensorFlow, Scikit-Learn, ONNX, TensorRT. Computer Vision, Image Processing, OpenCV, Roboflow, Triton, YOLO, YOLOv11, DETR, RT-DETR, Faster R-CNN, R-CNN, U-Net, DeepLabV3+, SAM, SAM2, SegFormer, ResNet, ConvNeXt, ViT, Swin. Optimization / Solvers: OR-Tools (CP-SAT), Z3, MiniSAT, SCIP, HiGHS, IPOPT, MiniZinc. Point Cloud Processing, Collision Detection, Physics Simulation. Maya API, Houdini API (HDK, VEX, HScript), Blender Python API, Pipeline Tools Development. Software Porting, Game Development. Qt, QML, PySide6, WxWidgets, VTK. iOS Development, Swift, Objective-C, UIKit, AVFoundation, Metal. Android Development, NDK. FFmpeg WebRTC, RTMP, RTSP, SRT, HLS, NDI, MPEG-DASH, CMAF, WebTransport, QUIC, UDP/RTP/RTCP, TCP, WebSockets, HTTP Live Streaming pipelines, Video Processing, Real-time Streaming Systems. JavaScript, Node.js, Three.js, Pixi.js. Docker, Kubernetes, AWS, EKS, CI/CD, n8n. PostgreSQL, Supabase. Windows, Mac, Linux. AI, Claude Code.