I build embedded products that ship and keep working in the field. Ten-plus years in, my firmware runs on more than 5,000 deployed units across industrial automation, robotics, consumer IoT, and edge AI. Most went out knowing they'd see heat, vibration, bad power, and users who don't read the manual. They still work. Along the way I cut an ESP32 wearable's sleep current from 80 uA to under 10 uA, ran a zero-brick OTA across a 5,000-unit fleet using secure boot and TLS, and took products through FCC and CE at accredited labs. What sets me apart from most firmware contractors is that I also own the board and the box. So when a sensor reads noisy, I know whether it's the driver, the layout, or the analog front end, because I drew all three. Manufacturability and reliability don't get bolted on at the end. They're decided on day one, while the part placement, the thermal path, and the enclosure seal are all still on the table. I design for certification from the schematic forward, not as a scramble after tooling. WHAT I DO DAY TO DAY • Firmware. C/C++ on ESP32 (ESP-IDF and Arduino), nRF52840 (nRF Connect SDK / Zephyr), STM32, and ARM Cortex-M/A, on FreeRTOS or bare-metal. BLE, Wi-Fi, sub-GHz, MQTT, and the low-power work to make a coin cell last. Plus 8+ years of embedded Linux (Yocto, device tree, U-Boot, PREEMPT-RT) and Jetson with CUDA, TensorRT, and GStreamer. • PCB design. Schematic capture and multi-layer layout, not a hand-off to someone else. I brought up a custom NVIDIA Jetson Orin carrier from a blank schematic to production, and laid out a compact wearable board (Nordic BLE, sensors, Li-Po) where every millimeter mattered. Comfortable with analog front ends, high-speed routing, power integrity, and EMC/ESD, with DfM baked in so the board is buildable at volume. • Mechanical CAD. SolidWorks (Fusion 360 too) in PDM-managed environments: parts, assemblies, and drawings for real enclosures. Injection-molding constraints, IP68 silicone overmold, gasket and tolerance work. I've carried housings from 3D-printed prototype to a tooled-mold production direction. RECENT WORK • An autonomous 4-wheel ROS 2 platform on Jetson fusing IMU, lidar, radar, and camera (NDA) • A driver-assist weather-state estimator on Jetson using Kalman multi-sensor fusion • A sealed multi-sensor wearable where I owned firmware, PCB, and the IP68 enclosure end to end (NDA) Got a product that needs to become real hardware, not a prototype on a desk? Send me the spec or a schematic and I'll tell you where the risks are. Happy to go deep work one-on-one.

✔️ TOP RATED Freelancer specializing in Computer Vision and AI-based image processing systems. I enjoy building practical, production-ready solutions for real-world visual problems and would be glad to contribute to your project in a meaningful way. My core focus is on computer vision, especially tasks involving image understanding, detection, and extraction from complex or noisy inputs. I have strong experience working with: ✔️Image Classification & Fine-Grained Recognition (handling subtle visual differences) ✔️Object Detection (YOLO, SSD, Faster R-CNN, TFOD API) ✔️Image Segmentation (Mask R-CNN, semantic & instance segmentation) ✔️OCR & Text Extraction (structured documents, multi-format, noisy images) ✔️Image Preprocessing (denoising, deskewing, perspective correction, enhancement) ✔️OpenCV-based pipelines for real-time and production use ✔️Deep Learning frameworks: TensorFlow, Keras, PyTorch ✔️CNN Architectures: ResNet, VGG, Inception, EfficientNet ✔️Transfer Learning & Custom Model Training ✔️Synthetic Data Generation & Augmentation ✔️Vector Embeddings & Image Similarity Systems ✔️End-to-End CV Pipelines (data collection → training → deployment) Alongside this, I also have a solid foundation in: ✔️Machine Learning & Deep Learning ✔️Mathematics & Statistics (for model understanding and optimization) ✔️Python ecosystem (NumPy, Pandas, SciPy, etc.) ✔️API Development & Deployment(Docker, AWS, GCP) I hold a Bachelor’s degree in Computer Engineering and am currently pursuing a Master’s in AI, which helps me stay aligned with the latest advancements in the field. My approach is always to first understand the business problem and real-world constraints, and then design a solution that is accurate, scalable, and practical to use. I care deeply about delivering solutions that actually work for clients not just in theory, but in real-world conditions. Thanks & Regards, Ruchir

As a forward-thinking Senior Engineer and Team Leader with over two decades of experience, I work as a full stack developer specializing in Video Streaming and real-time communication solutions based on WebRTC. I combine strong architecture thinking with hands-on delivery, acting both as a technical leader and a practical full stack web developer who understands real product needs and builds scalable WebRTC-powered systems. Today, my focus as a full stack developer includes the strategic application of advanced AI technologies alongside WebRTC-based real-time communication platforms. I actively work with OpenAI APIs, Whisper for speech recognition, LLaMA2 for open-source large language models, and LangChain for building AI-driven workflows. This positions me as a full stack developer AI who can integrate intelligence directly into real-world WebRTC video and streaming products. Throughout my career as a full stack developer, I’ve contributed to Telemedicine, Online Education, and Real-time Entertainment by building WebRTC-powered communication platforms. I’ve led teams delivering webinar platforms, live chat systems, and complex real-time applications, acting both as a senior web developer and system architect who ensures scalability, security, and long-term maintainability for WebRTC infrastructures. In AI-focused projects, I operate as a full stack developer who bridges data, logic, and user experience inside WebRTC-enabled applications. My team and I integrate conversational AI, speech-to-text, and knowledge-driven systems using OpenAI, Whisper, and LLaMA2. With LangChain, we design intelligent pipelines that automate workflows and data processing, enhancing WebRTC communication platforms with AI-driven capabilities. WebRTC remains a core part of my work as a full stack developer, especially for building high-performance real-time systems. We design everything from low-latency WebRTC infrastructure to complete applications, delivering solutions that work seamlessly across web and mobile. This includes building scalable video streaming app architectures capable of handling thousands of concurrent users through WebRTC. As a full stack developer, I also provide consulting and development services across North America and Europe, helping companies design and build WebRTC-based video communication platforms. I work with companies in Entertainment, E-Learning, Healthcare, and Finance. Depending on project needs, I act as a React developer, Wordpress developer, or mobile app developer while implementing scalable WebRTC solutions. Our services as a full stack developer team include system architecture, UI/UX design, and custom development of WebRTC streaming and real-time communication platforms. We build modern interfaces, robust back-ends, and real-time systems, including secure WebRTC video stream delivery for live and on-demand use cases. We have worked with most of the major Webinar and Online Education platforms on the market, delivering solutions as a full stack developer team that understands both the business and technical sides of WebRTC video streaming products. We frequently modernize existing platforms and migrate legacy systems to scalable cloud-based architectures built around WebRTC technologies. As a full stack developer, I’ve led the creation of webinar systems, live chat apps, WebRTC video conferencing platforms, real-time video auctions, messengers, e-learning platforms, telemedicine solutions, dating apps, Twitch-like platforms, TikTok-style apps, VoD systems, and live shopping platforms. Many of these solutions rely on modern stacks including full stack developer React and full stack Lavarel approaches integrated with WebRTC. Beyond development, I support clients as a full stack developer with load testing and performance optimization for large-scale WebRTC streaming systems. My background across front-end, back-end, databases, and cloud platforms allows me to lead projects end-to-end and deliver reliable, production-ready WebRTC platforms. I invite you to collaborate with me as a full stack developer who understands AI, WebRTC, and scalable real-time product development. Together, we can build innovative WebRTC-powered solutions that align with your business goals and grow with your users.

Embedded Firmware Engineer with 7+ years of hands-on experience building production-ready firmware for ESP32, STM32, PIC32, and nRF52-based systems. I've delivered real-world solutions for IoT, industrial automation, consumer electronics, smart displays, and connected devices—from proof-of-concept prototypes to mass-production products. My expertise covers low-level firmware, communication protocols, RTOS-based applications, touchscreen interfaces, OTA updates, custom bootloaders, and hardware bring-up. I focus on writing reliable, maintainable, and scalable firmware that performs well in real-world environments. 🎯 Core Technical Expertise • Embedded C/C++ Firmware Development • Bare-Metal, HAL and RTOS-Based Systems • FreeRTOS Integration and Optimization • Hardware Bring-Up and Board Support Packages (BSP) • Device Drivers and Peripheral Development • System Architecture and Firmware Design • Debugging, Profiling, and Performance Optimization • Low-Power Battery-Powered Devices • Production Testing 🎯 Core Expertise • Microcontrollers ESP32 | ESP8266 | STM32F1/F4/F7/H7 | PIC16/18/24/32 | nRF52840 | ARM Cortex M0/M3/M4/M7 | ATmega | RISC-V • Languages C | C++ | Assembly | Python • Wireless WiFi 802.11 b/g/n | Bluetooth Classic | BLE 4.0/5.0/5.1 | Zigbee | Z-Wave | LoRaWAN | NB-IoT | LTE-M | 4G/LTE | 5G | NRF24L01 • IoT Protocols MQTT | CoAP | HTTP/HTTPS | Modbus RTU/TCP | CANbus | RS485 | RS232 | Ethernet | 6LoWPAN • Cloud Platforms AWS IoT Core | Google Cloud IoT | Azure IoT Hub | Firebase | ThingSpeak | Blynk | MQTT (Mosquitto, HiveMQ) • Operating Systems FreeRTOS • Security TLS/SSL | AES-256 | RSA-2048 | ECDSA | SHA-256 | Secure Boot | OTA Authentication | Digital Signatures • Interfaces SPI | I2C | UART | JTAG | OneWire | USB | Ethernet | PWM | ADC/DAC | CAN • Tools STM32CubeIDE | Keil MDK | MPLAB X | Arduino IDE | PlatformIO | VS Code | Git • Sensor Integration DHT11/22 | DS18B20 | BME280 | MPU6050/9250 | HC-SR04 | VL53L0X | INA219 | MQ-series | BH1750 • Motor Control DC motors | Servo motors | Stepper motors (microstepping) | PWM | H-bridge | Relay control | LED/RGB • Power Management Deep sleep modes | Low-power design | Battery optimization (6-24 months runtime) | Voltage regulation | BMS integration | <10µA standby 🎯 GUI & HMI Development • LVGL (Light and Versatile Graphics Library) • Touchscreen Integration (GT911, CST328, and others) • TFT LCD Displays • Custom Widgets and Animations • Industrial HMI Interfaces • Smart Home Control Panels • Real-Time Data Visualization Dashboards 🎯 OTA Update Specialist • Protocols HTTP/HTTPS OTA | MQTT OTA | AWS IoT Jobs | Google Cloud OTA | Azure IoT Hub | BLE OTA | LoRaWAN | Custom protocols • Security Firmware signing (RSA-2048, ECDSA) | AES-256 encryption | SHA-256 verification | Secure boot | Rollback protection • Features Resumable downloads | Dual-partition | Automatic rollback | Compression (gzip) | Progress monitoring | Batch deployment | Version control 🎯 Custom bootloaders • Types UART serial | USB DFU | Network (Ethernet/WiFi) | BLE/LoRa wireless | Secure bootloader (production) | Multi-image A/B | SPIFlash bootloader • Security RSA/ECDSA signatures | CRC32/SHA256 checksums | AES-256 decryption | Anti-rollback | Hardware-backed key storage | OTP regions • Processors ESP32 | STM32 | PIC32 | ARM Cortex-M (all variants) 🎯 Why Clients Prefer Working With Me • 7+ years real-world experience | Not theoretical • End-to-end expertise | Firmware → cloud → security • Security-first | Encrypted comms, secure boot, OTA auth • Hardware-software co-design | Works with your constraints • Power optimization | 6-24 months battery life • Production-grade code | Error handling, logging, testing • Performance tuned | <50ms latency, memory optimized • Post-launch support | Bug fixes, field debugging 🎯 What I Deliver ✔ Custom firmware development (ESP32, STM32, PIC32 ...) ✔ IoT device development (WiFi, BLE, LoRaWAN, NB-IoT connectivity) ✔ Microcontroller programming (all major platforms) ✔ Embedded GUI/HMI (LVGL touchscreen interfaces) ✔ OTA firmware updates (secure, multi-protocol) ✔ Custom bootloaders (secure boot, recovery) ✔ Sensor integration (50+ sensor types) ✔ Motor control systems (DC, servo, stepper) ✔ Power optimization (battery life extension) ✔ Real-time systems (FreeRTOS, RTOS optimization) ✔ Cloud integration (AWS, Google Cloud, Azure) ✔ Security implementation (encryption, auth, secure boot) ✔ Hardware drivers (display, peripheral libraries) ✔ Testing & debugging (unit tests, field debugging) ✔ Technical documentation Let's build production-ready IoT devices that work reliably in the real world.

I am an electronic engineer with over 3 years of experience. I can handle both hardware and embedded software projects. I am interested by Iot projects in the fields of health, entertainment, transport

At ForthTech, we specialize in Robotics, automation, and Product Design. Our custom solutions have helped businesses innovate and grow. In Robotics and Automation, we design smart systems that boost efficiency, covering everything from mechanical design to embedded software. Our goal is to streamline your processes with intelligent, custom-built robots. In Product Design, we take ideas from concept to final product, ensuring flawless function. We also conduct IP protection checks to safeguard your innovations. We combine technical expertise with creativity to deliver real-world solutions that help your business succeed.

Proud partner with NVIDIA Inception + MIcrosoft Startups ⭐⭐⭐⭐⭐ "Amazing work with Nitish, very professional and glad..." ⭐⭐⭐⭐⭐ "Professional and with great expertise. A pleasure to work with!" ⭐⭐⭐⭐⭐ "Great attention to detail and v responsive..." ⭐⭐⭐⭐⭐ "Very good developer, Really he saved my time and solved my problem in very short time. Best developer ... on Upwork" ════════════════════════ 🏆 UPWORK ACCREDITATIONS & ACHIEVEMENTS ✅ Top Reinforcement Learning Freelancer in India ✅ Top 5 Computer Vision Engineer in India ✅ Top 10 Machine Learning Engineer in India ✅ Top 10 Deep Learning Experts in India ✅ Best Robot Operating System (ROS) Developers in India ✅ Top PyTorch Freelancer in India ✅ Top 20 Robotics Agency (Robolabs AI) ✅ 100% Job Success Rate with perfect client satisfaction ✅ Top Rated Status with 5-star client reviews ════════════════════════ ⚡ EXPERTISE & SERVICES Specializing in high-performance AI/ML solutions using Python, C++, and MATLAB 🔹 Machine Learning & Reinforcement Learning Chatbots • Recommendation Engines • Autonomous Decision-Making Systems 🔹 Robotics & Autonomous Systems Real-time Localization • Robotic Control • Motion Planning 🔹 Computer Vision Applications Autonomous Vehicles • Surveillance • Quality Control Systems 🔹 Cloud AI Deployment Scalable Solutions on AWS, GCP, Azure • Docker • Kubernetes 🔹 Quality Assurance Rigorous Testing • Top-Performing Models • Enterprise Reliability ════════════════════════ ⚡ TECHNICAL SKILLS 🤖 Robotics: ROS, ROS2, Isaac Sim, SLAM, RL, Gazebo, MoveIT, RoboDK, RPA, End-to-end Learning, Sim2Real, Digital Twin, Robotics Sensors (LiDAR, Stereo Camera, IMU, Odom) 🧠 LLM Development: Supervised Fine-tuning, DRPO with state-of-art models (DeepSeek, o1, o3-mini, Claude Sonnet, Grok, Google Gemini, Mistral) 📊 Machine Learning & Deep Learning: TensorFlow, PyTorch, Keras, Scikit-learn, StableBaselines, XGBoost, LightGBM 💬 NLP: spaCy, NLTK, Hugging Face Transformers, OpenAI API 👁️ Computer Vision: VLMs, OpenCV, YOLO, SAM, SAM2, Point Cloud Library (PCL), Dlib 🎯 Reinforcement Learning: OpenAI Gym, RLlib, Unity ML-Agents 📈 Data Science & Big Data: Pandas, NumPy, Dask, Apache Spark, Hadoop, Presto 🗄️ Data Storage: SQL, MongoDB, Cassandra, Neo4j, Dgraph ☁️ Cloud & DevOps: AWS, GCP, Azure, Docker, Kubernetes, Terraform, CI/CD (Jenkins, GitLab CI) 🚀 AI Deployment: ONNX, TensorFlow Serving, NVIDIA Triton, MLflow, FastAPI, Flask 💻 Programming Languages: Python, C++, C, MATLAB 🌐 Web Frameworks: React, Node.js, Flask, Django 🔧 Automation & CRM: Zapier, Make, Salesforce, HubSpot, Airtable, Notion ⚙️ Other Tools: Apache Kafka, Redis, RabbitMQ, Elasticsearch, Prometheus, Grafana ════════════════════════ ⭐ WHY CHOOSE ROBOLABS AI? 🏆 Award-Winning Excellence Backed by Microsoft • Trusted Global Leader • Recognized for Consistent Quality 🌍 Global Presence, Local Commitment Team Members Worldwide • Seamless Support • Round-the-Clock Availability 📊 Proven Track Record 100+ Successfully Delivered Projects • AI-Driven Automation • Intelligent Systems ════════════════════════ ✨ WHAT SETS US APART 🏢 Enterprise-Grade Solutions: From MVP to production systems handling millions of users 🔄 Complete AI Implementation: End-to-end development, deployment, and maintenance 🎯 Industry Expertise: 100+ successful projects across Fortune 500 companies and fast-scaling startups 🚀 Cutting-Edge Technology: Using 2025’s breakthrough AI models and frameworks ════════════════════════ At Robolabs AI, we blend technical expertise with industry insights to create AI solutions that transform your business.

Embedded systems engineer with 15 years of experience in hardware and software development with a passion for innovation and problem solving. Proficient in schematic capture and PCB layout, from single to multi-layered boards, rigid and flexible PCBs, ensuring compliance, manufacturability, and cost efficiency with experience from industrial and consumer products. My projects involve both analog and digital circuits and often include firmware development for ESP32, STM32, PIC etc. I am also skilled in algorithm development, including model predictive control, computer vision using machine learning and OpenCV. I enjoy competing in challenges like the Drone Racing League and Kaggle competitions. I have hands-on experience in hardware prototyping as well as 3D CAD and sheet metal design of enclosures. I am committed to delivering high-quality solutions, always using a comprehensive review checklist to minimize risks before production. Keywords: Embedded systems, Firmware, RTOS, Circuit design, Signal processing, Power electronics, IoT, Prototyping, 3D printing, Mechatronics, Reverse engineering, Python, C/C++, VHDL, Machine learning, Image processing and analysis, ROS, KiCAD, OrCAD, openEMS, QSpice, LTSpice, OnShape, SolidWorks, OpenCV

Hi there, my name is Weverson Barbieri, ● Bachelor’s degree in Business Administration and Automotive Systems Technology, with proficiency in English, multiple training and specialization courses in technology, and over six years of experience in large national and multinational companies. ● Skilled in IT project management, serving as a direct interface with stakeholders to gather requirements and develop new features/solutions, ensuring that all activities are executed according to the agreed scope and delivered with quality to the end user. ● Proficient in developing interactive front-end applications using Streamlit, enabling rapid prototyping and deployment of data-driven tools. Passionate about transforming raw data into actionable insights through automation and intuitive user interfaces. ● Strong experience in Python programming using pandas, streamlit, jupyter, pdfplumber, and Pyinstalled. Skilled in building efficient data pipelines and cleaning routines for complex datasets. Experienced in version control using Git and GitHub, ensuring collaborative development, code integrity, and streamlined project management. Passionate about transforming raw data into actionable insights through automation and intuitive user interfaces. ● Expert in diagnosing electrical and electronic failures in ECUs for engine, body, and transmission management in American vehicles. ● Deep understanding of automotive network communication protocols, such as CAN BUS, CAN BUS sniff and LIN. ● Proficiency in DTCs (Diagnostic Trouble Codes) and their respective circuits. ● Comprehensive understanding of electrical schematics, input/output signals, sensors, actuators, pinouts, and ECUs. ● Programming portfolio available on GitHub: weversonbarbieri and hydra-code-repository I invite you to look at my profile, and let’s do something great together.

Passionate Internet of Things (IoT) developer with over 5+ years of hands-on experience in creating cutting-edge IoT products and applications. I specialize in: * Bluetooth & Wearable Apps * IoT Apps Development * IoT Consulting * IoT Embedded Development * Cloud Services * Backend Solutions * Manufacturing I have a proven track record of transforming ideas into functional and innovative solutions. Expertise: Hardware & Software Development: Skilled in designing intuitive mobile and web applications that integrate seamlessly with IoT devices for remote monitoring, control, and data analysis. High-Quality Solutions: Committed to delivering exceptional results that exceed client expectations. Collaborative Team Player: Thrive in dynamic environments, working closely with cross-functional teams to ensure seamless integration of hardware and software components. My goal is to create impactful and efficient IoT systems that enhance lives and businesses.