I am TOP LEVEL Mobile app, game, web app, website & artificial intelligence (AI) developer who helped many clients and employers to solve their technology-related problems & boost their business by providing innovative solutions that enabled them to take their business to the next level. Technologies I use: ✅ iOS: Swift/Objective C ✅ Android: Java/Kotlin ✅ AI, ML, LLM, Chatgpt API, Claude, Python, C++ ✅ Cursor, Lovable ✅ Unity3d , Unreal Engine UE4,UE5 ✅ React Native, Flutter, Xamarin & Hybrid: HTML5, CSS3, JavaScript ✅ PHP, Python, WordPress, .Net, React, NodeJS, MySQL ✅ React (Next.js), D3.js ,Chart.js ✅FastAPI ✅SQLite/PostgreSQL, Redis ✅AI/ML Tools: OCR, Machine Learning ✅ Design: Photoshop/illustrator/Figma/Sketch ✅ Cloud services: Firebase, AWS, Docker ✅ Cross-platform: Flutter (Dart) ✅ Design: Photoshop/illustrator/Figma/Sketch ✅ Cloud services: Firebase, AWS ✅ Persisting Data: Realm Database, Cloud Firestore, SQLite ✅ IDE: Android Studio, Xcode ✅ Control Versions: GitHub, Bitbucket ✅ Architecture: MVVM, MVP, clean code ✅ Professional software engineering tools and methodologies ✅ Equipped to work with IoT dev kits, prototypes, serial console interfaces etc. ✅ Parse SDK. ✅ Node.js What you can expect: - Client's satisfaction is on the top of my priority; - Excellent products and support; - Quality of work is very high; Top Business Category / Verticals that i have worked for: - Chat apps (XMPP, Firebase) - Fitness/workout apps - AI chat app, Chatgpt, Chatgpt API - AI photo & video generation tools - Taxi/GPS - Mobile and desktop games - AI mobile apps & Web apps - eCommerce Apps - Streaming( audio & video) - Photo/Video Editing apps - Mobile & Desktop Websites - Enterprise Mobility Solutions - Food ordering apps - Web Service Development using PHP/MySQL, JSON, XML , RSS. - iAd, Revmob, Chartboost - Github, SVN and JIRA. - Google Map Service, Apple Map - QR code, Bar code - Cloud based mobile applications - Social networking with GPS, Maps, Chat, Event, Comment, Media Sharing

With over 8 years of hands-on experience in embedded systems and Android development, I specialize in delivering robust, scalable, and high-performance solutions for custom devices, including Set-Top Boxes (STB), Smart TVs, and digital signage. My expertise spans the full stack—from bootloader integration to custom UI development—ensuring seamless hardware-software integration and an optimal user experience. What I Can Do: - Design, develop, and deploy computer vision systems on edge devices (e.g., Jetson, Raspberry Pi, Orange Pi) for tasks such as object tracking, license-plate recognition, and motion analysis. - Build real-time dashboards that reflect live event data (e.g., sales, alerts), including audio/visual feedback. - Customize AOSP-based boards using SoCs from Rockchip, Allwinner, and Amlogic. - Create and maintain automation workflows (using Zapier, n8n, or custom solutions) to connect systems and trigger actions. - Optimize models and pipelines for latency, power efficiency, and reliability. - Collaborate with hardware engineers and product designers to align system requirements (camera specs, sensors, mounts, etc.). - Ensure quality through testing, monitoring, logging, and robust failure handling. Core Skills & Technologies: - Languages: C, C++, Java, Kotlin, Python, Bash - Vision Frameworks: YOLO, OpenCV, TensorFlow - Edge Deployment: TensorRT, Jetson - Android: Android SDK/NDK, AOSP (Android 9–13), JNI, Gradle - Multimedia: GStreamer, ExoPlayer, MPEG-DASH, RTMP, OpenGL, OpenCL - UI Development: Custom UI, Canvas/Scene, Qt, wxWidgets, WPF, Flutter - Build Systems: CMake, Yocto, Buildroot - Hardware Interfaces: USB, I2C, HDMI, GPIO, RCU, Serial, RFID - System-Level: Bootloader, OTA updates, /dev access, power management (suspend-to-RAM/disk) - Platforms: Android TV, STB (Broadcom, Amlogic), RDK, Linux/Windows cross-platform apps

Need a fast, scalable iOS app built with SwiftUI — or help fixing a messy codebase? I help startups and growing companies build production-ready iOS apps with clean architecture, smooth performance, and App Store–ready polish. Recent results: 🚀 Top 100 Kids Paid app on the App Store 💰 $400K+ earned | 10,500+ hours on Upwork ✅ 200+ successful projects with long-term clients 💡 What I can help you with: SwiftUI & UIKit app development (from MVP to scale) Refactoring and modernizing legacy iOS codebases Subscription systems & In-App Purchases Performance optimization & architecture improvements API integration & scalable backend connectivity App Store submission, compliance & launch support 🎯 Who I work best with: Startups and teams that need a reliable senior iOS developer who thinks beyond code — focusing on scalability, performance, and long-term product quality. If you want clean code, clear communication, and fast execution — let’s talk.

Hello! I'm Kazi Sohan, an analytical and skilled software engineer with over five years of professional experience. I hold a Master's degree in Information Technology from Jahangirnagar University. My career is marked by positions that have leveraged my C++, Python, and Java expertise to develop advanced AI, machine learning, and automated trading systems. My ability to innovate and deliver effective solutions has been proven through my contributions to complex projects, enhancing system performance and end-user experience. Skills: ⚫ Programming Languages: Proficient in C++, Python, Java ⚫ Expert in Algorithms and Data Structures ⚫ Specializations: Desktop Applications, Microservices, AI, Machine Learning, Computer Vision, Image Processing ⚫ Tools and Platforms: MT5, MT4, Redis, Kafka, WebSocket, REST APIs, Keras, Tensorflow, Pytorch, Numpy, Pandas ⚫ Problem Solving: Strong analytical skills with a proven track record in competitive programming ⚫ and algorithm optimization ⚫ Project Management: Experienced in leading development phases, ensuring timely delivery Professional Experience: Anyconnect: Spearheaded the development and enhancement of computer vision features, integrating AI capabilities into consumer-grade camera products, improving product performance and customer satisfaction. Next Ventures: Led the backend development for integration solutions between financial trading platforms and TradingView software, significantly enhancing data throughput and system responsiveness. Achievements: We are consistently ranked in the top tiers of national and international programming contests. Recognized for advanced problem-solving skills across various coding platforms, including Codeforces, CodeChef, and HackerRank. Publications: ⚫ Innovative methods in 3D reconstruction from 2D images using machine learning. ⚫ Improved product review classification through advanced algorithms. ⚫ Efficient real-time image classification with neural networks.

🤖 Robotics Software Engineer | ROS2 | Autonomous Robots | SLAM | Sensor Fusion | Robot Arms | Real-Time Systems I’m a Robotics Software Engineer with strong hands-on experience in ROS 2 robotics development, autonomous mobile robots, SLAM, sensor fusion, and robotic arm manipulation. I work on real production systems used by customers — not experiments or demos. My experience spans real-time perception, planning, and control pipelines, deployed on physical robots in medical, industrial, and outdoor environments. 🔧 Robotics & ROS Expertise ROS 2 / ROS 1 development (Nav2, MoveIt / MoveIt 2, ros2_control) Autonomous navigation for indoor and outdoor robots SLAM & localization (Cartographer, SLAM Toolbox, LiDAR SLAM, Visual SLAM) Sensor fusion using EKF / UKF (GNSS, IMU, wheel odometry, LiDAR) Experience with UGVs, delivery robots, quadrupeds, and robotic arms Robot simulation using Gazebo and NVIDIA Isaac Sim 📡 Sensors, Perception & Real-Time Processing Integration of LiDAR, depth cameras, stereo cameras, GNSS, IMUs Cameras: Intel RealSense, ZED Real-time 3D perception pipelines using PCL & Open3D TensorRT optimization for real-time inference on edge devices GPU-accelerated computer vision and perception Photogrammetry and dense 3D reconstruction 🦾 Robot Arms & Medical Robotics (Production Systems) Extensive experience with robotic arms in production medical and industrial applications Platforms: xArm, ABB, UR robots MoveIt / MoveIt 2 motion planning Collision-aware trajectory planning in tight and constrained spaces Multi-year development of a production dental robotics platform: Real-time surface-following motion for teeth cleaning High-precision manipulation with strict orientation constraints Perception-driven toolpath generation from 3D scans Deployed and tested on real hardware 🧠 Computer Vision & AI (Applied, Real-Time) OpenCV-based computer vision for robotics Object detection & segmentation (YOLO, SSD, U-Net, SAM) Real-time AI pipelines optimized for deployment Practical AI for robotics perception — not research-only models 🧰 Engineering & Production Deployment Python and C++ for performance-critical robotics systems Linux, Docker, and reproducible deployments Debugging and tuning real robots in production Long-term ownership of complex robotics codebases Clear documentation and structured handover ✅ Why Clients Hire Me I work on real production robots, not proofs of concept I design real-time systems that survive real environments I can debug complex ROS, SLAM, and motion-planning issues I take ownership from architecture to deployment Ideal for long-term, high-responsibility robotics projects If you’re looking for a ROS 2 robotics engineer, SLAM developer, robot arm motion-planning expert, or real-time perception engineer, I can help you build a system that works reliably in the real world.

Passionate Australian/British .NET developer with over 17 years of experience working in Sydney, Wellington, and London. Current interests include .NET MAUI, Blazor, and Azure. Seeking a role to use my skills in cutting-edge technology, creating software that benefits people and the planet. Skills: ● C#, .NET MAUI, Blazor ● Azure (App Service, Blob Storage, Entra ID, Functions, Azure Communication Service etc) ● ASP.NET Core Web API, SQL Server, Entity Framework ● VS 2022 ● Communication (native English), remote collaboration I would love to meet you in a Zoom call to discuss your project!

An Embedded Solution Architect with wide experience in embedded product development including embedded hardware development, embedded firmware development, embedded linux / android based solution development. I have product development expertise in following domains, 1. Smart Internet of Things 2. Automotive Electronics and Communication Technologies 3. Consumer Electronics I have experience in complete end-to-end hardware design includes hardware schematics, PCB layout, High Speed Signal like HDMI, Ethernet, MIPI-CSI2, MIPI-DSI and etc, RF Antenna design and fine tuning. I also have experience in complete end-to-end embedded software design & development includes, • Embedded Linux Software System Design & Development • Development of Embedded Linux / Android Device Drivers • Development of Smart Internet of Things solution using BLE, Mesh, LoRa, WiFi, Thread networks. • Protocol Stack & Telecommunication Standards Implementation • Embedded Firmware Design, Development and testing • Device driver development for Windows XP, WinCE, Windows 7 platform • BSP, Device Driver, Application development based on VxWorks platform • Professional Trainer of Embedded Linux, Device Drivers, Firmware Programming.

Create leverage. That is what I do. I build high-performance, secure, reliable software that helps founders and businesses launch and scale with confidence. Since 2010, I have helped founders and established companies turn ambitious ideas, messy workflows, and broken systems into serious software products. Obsession with quality, complete transparency, and no hand-holding - that is how I turn software from a development expense into a business asset. I am an excellent fit if: - You are a founder with a product idea and need more than “someone to code it.” I can help you refine the concept, define the right MVP, validate technical assumptions, choose the right architecture, build the first production-ready version, and support you after launch as the product grows. - You are an established business looking to build a new platform, automate operations, replace spreadsheets, improve workflows, modernize legacy software, scale an existing product, or rescue a bad build. I am especially valuable when the project is too important to gamble on cheap execution, unclear ownership, fragile architecture, or developers who only wait for task lists. I have spent 15+ years building software where failure is expensive, across product types, workflows, and industries including SaaS platforms, AI/RAG systems, internal tools, dashboards, CRM/ERP/POS systems, logistics platforms, marketplaces, real estate software, e-commerce, FinTech, EdTech, HealthTech, data analytics, travel, hospitality, and regulated sports betting The value of that experience is not just knowing different industries. It is knowing the patterns behind them: workflows, permissions, payments, reporting, integrations, data integrity, performance, edge cases, and the business logic that quietly decides whether a product becomes scalable or painful. I personally lead architecture, planning, communication, and delivery. When a project needs more capacity, I bring in my senior team to provide high-level technical ownership and reliable execution. Whether you are a non-technical founder, an operations-heavy business, or a technical team that needs senior delivery support, I will communicate at the right level: clear when needed, technical when useful, and always focused on decisions that move the project forward. I am based in Turkey and regularly work with US, UK, Canadian, European, and Australian clients. I work EST hours with reasonable PST overlap, so communication across time zones is smooth. Don’t settle for mediocre. In a world of ruthless competition, make me your unfair advantage. Send me a message today, and I will map our next steps.

I am a professional Embedded Engineer with over 10 years of experience in embedded systems design, covering both hardware and firmware/software development. I have also set up and led a full-service engineering team, delivering complete products from concept to production, including hardware design, embedded software, cloud integration, and, AI, mobile app development, product/industrial design. I specialize in wireless IoT devices, wearable/medical technology, and embedded firmware with a strong background in end-to-end product development and team leadership. What We Can Offer Firmware Development - Embedded software for IoT, wearables, medical, and consumer electronics - Driver development, RTOS integration, and low-power optimization - Connectivity stacks: BLE, Wi-Fi, NFC, LoRa, LTE, CAT-M1, NB-IoT - Secure OTA updates, device provisioning, and cloud integration Hardware Design - Custom PCB design with multiple layer and layout for high-reliability embedded systems - Power management & battery systems (BMS, energy optimization) - Prototyping, testing, and design-for-manufacturing (DFM) Product & Industrial Design - Mechanical design, 3D modeling, and enclosure development - Ergonomics and usability design for consumer and medical devices - Design-for-production (DFP) and certification support (CE, FCC, FDA-ready) AI & Data Processing - Edge AI/ML model deployment (Edge Impulse, TensorFlow Lite) - Predictive maintenance and anomaly detection for IoT/IIoT - Cloud-based AI integration with AWS/Azure/Google Cloud Mobile App & Cloud Integration - Cross-platform mobile apps (Android/iOS) - Secure Bluetooth, Wi-Fi, and cloud connectivity with devices - Web portal/dashboard development for monitoring and analytics

🔹 My Objective: Deliver Quick, Efficient Solutions with a Focus on Client Satisfaction. 🔹 Expert on Microsoft .Net/Angular/MVC/SQL SERVER/DBA/SSIS/SSRS/SSAS/AZURE 🔹 Expert on BI Reporting-PowerBI/Tableau/ZOHO Analytics/Databox/SAP Crystal Reports 🔹 Strong R&D Skills & ability to quickly adapt to new technologies 🔹 Over 15 years of experience on Microsoft Technologies ➡ ABOUT ME ⬅ I am a seasoned technology professional with over 15 years of experience and working as FULL TIME FREELANCER, specializing in Microsoft .Net/Angular/MVC/SQL Server and BI Reporting and working as a MS SQL Server database/BI Developer and Experience in developing the MSBI (SSIS, SSRS, SSAS) applications. Also, Expert on BI Reporting(PowerBI/Tableau/ZOHO Analytics/Databox), MS SQL Server Optimization/Performance Tuning/Replication/Clustering/High Availability, ETL/Data Warehouse(DW) design/development, MS Excel/VBA/Access. Also, Experience on Cloud Microsoft AZURE VM/SQL Server/SQL Managed Instance administration and maintenance, Migration on-premises to Azure, optimization of resources and cost reduction. ➡ SKILLS EXPERTISE ⬅ ✅- .Net desktop and web applications development using angular/MVC ✅- SQL Server Database Architecture/Design/T-SQL development/DBA ✅- Performance tuning- Server performance (settings/configurations) ✅- Performance tuning- Scripts performance (Scripts/Stored procedures/views/functions) ✅- Automatization of T-SQL Scripts to optimize the manual process ✅- Extract, Transform & Load (ETL) - SSIS (development,maintenance/troubleshooting) ✅- SSRS (developing reports,maintenance/troubleshooting) ✅- SSAS (developing multi dimensional/tabular cubes,maintenance/troubleshooting ✅- AZURE portal maintenance/VM’s creation/SQL MI server’s/Maintenance ✅- Migrating servers from on premises to AZURE cloud environment ✅- Migrating old databases versions to latest versions ✅- PowerBI/Tableau/ZOHO Analytics/Databox/SAP Crystal Reports/Excel/VBA/Access ✅- Database Maintenance, 24/7 Monitoring Support ✅- Quick grasping of new products and adaptation to new environment ✅- Ability to learn new technologies and deliver high quality services and tasks ➡ TECHNOLOGIES⬅ ✅- Operating Systems :- Windows Server 2008/2012/2016/2019/2022 ✅- Databases :- Microsoft SQL Server versions from 2008R2 to SQL2022 ✅- Microsoft Business Intelligence :- SSIS,SSAS,SSRS,Master Data Services(MDS), Power BI ✅- Programming Languages :- VB, VB.Net, C#. Net ✅- Tools :- JIRA,TFS , VSS, MS Office tools, GitHub