Embedded Systems | Firmware | PCB Design | Mechanical Design I help clients develop reliable prototypes and products in embedded systems, electronics, PCB design, and mechanical design. I have 3+ years of experience in the development of military/defense equipment, including UGVs, RCWs, and rocket subsystems, as well as prototyping medical, industrial, and musical equipment. Core skills: - Firmware development for MCUs (C/C++) on ARM platforms, STM32, ESP32, and Arduino; - Automation development on embedded systems and industrial equipment. - Industrial communications protocols knowledge (CANopen, Ethernet, EtherCAT, Serial and other) - PCB and circuit design; sensor integration; automation; - 3D/2D modeling and drafting; Fusion 360; AutoCAD; - MATLAB/Simulink; LabVIEW; C#; - 3D printing and prototyping. Available equipment: multiple ESP32, STM32, and Arduino platforms for prototyping, Ender 3 S1 Pro and Bambu Lab P1S 3D printers, and a Rigol DHO924S oscilloscope for testing and verification. I also have access to quick PCB and CNC production. Responsive, reliable, and focused on practical, on-time results.

Are you looking for a reliable expert to take your electronics from a rough prototype to a scalable, production-ready product? I am a Senior Embedded Systems Engineer specializing in full-stack PCB design and custom firmware development to bridge the gap between complex hardware and intelligent software. From architecting high-performance STM32 dual-core systems to deploying AI-driven computer vision on the edge, I deliver robust, scalable solutions for IoT, robotics, and consumer electronics. Whether you are building an industrial autonomous robot, developing custom motor controllers, or engineering a battery-optimized ESP32 sensor, I provide end-to-end support from schematic design to final firmware optimization. Core Competencies & Services: Firmware Development & MCUs: Expert-level C/C++ programming for STM32 (H7, F4, L4), ESP32, Arduino, Infineon XMC, and Atmel AVR. Proficient in bare-metal coding, FreeRTOS, Low-Level Drivers, and Over-The-Air (OTA) bootloaders. Custom PCB Design & Prototyping: High-speed, multi-layer board layouts with strict attention to signal integrity, power electronics, and Design for Manufacturing (DFM) using Altium Designer and KiCad. Motor Controllers & Autonomy: Advanced firmware integration for servo, stepper, and BLDC motor controllers, alongside ROS/ROS2, SLAM, and sensor fusion for autonomous vehicles and manipulators. IoT & Wireless Connectivity: Implementation of BLE, Wi-Fi, LoRa, and custom cloud integrations for low-power IoT devices. Computer Vision & AI: Real-time object detection (YOLO, OpenCV) integrated directly into embedded Linux or high-end MCU environments. Proven Impact & Notable Projects: Automotive Safety: Developed a Helmet Airbag Safety PCB with millisecond-latency accident detection and deployment firmware. Industrial Surveillance: Engineered a centralized Surveillance Van Integration hub, syncing drone docks, payload cameras, and power management. Low-Power IoT: Designed an E-Paper Bible Clock featuring an ESP32 MCU, QR-code Wi-Fi provisioning, and 6+ months of battery life. Defense Prototypes: Developed a Remote Weapon Station with 360° precision motor controllers and integrated safety interlocks. Tech Stack & Tools: Languages: C, Embedded C, C++, Python, MATLAB Frameworks: FreeRTOS, TouchGFX, ROS/ROS2, Gazebo, MoveIt Protocols: UART, SPI, I2C, CAN, Ethernet, Modbus Hardware Design: Altium Designer, KiCad, Raspberry Pi, Jetson Nano Why Work With Me? Code Quality: I write clean, documented, and maintainable firmware following industry standards. Full-Stack Hardware: I don't just write code; I understand the physical analog electronics, signal integrity, and manufacturing constraints of your circuit. Transparency: Regular updates, clear milestones, and proactive problem-solving to ensure a smooth transition from your initial prototype to mass production. Ready to bring your hardware vision to life? Click the "Invite to Job" or "Hire" button, and let's discuss how I can add value to your project!

I am a Senior Power Systems Engineer specializing in **grid interconnection, compliance, and system impact studies** for **renewable generation, BESS, hybrid plants, conventional generation, and large industrial / data center loads**. I deliver **utility-, ISO-, and TSO-ready studies** using **PSS®E, PowerFactory, PSCAD, and ETAP**, covering the full range of technical assessments required for project development, connection applications, design review, and compliance demonstration. My work supports **Solar PV, Wind, BESS, Hybrid plants, conventional power facilities, and data centers**, with studies prepared in a way that reflects how utilities and system operators actually review **models, assumptions, plots, test evidence, and compliance conclusions**. I support clients from early-stage screening through submission-ready packages, including clear RFIs, defensible assumptions, clean technical plots, and structured reports suitable for utilities, TSOs, ISOs, developers, EPCs, and owners’ engineers. Core Services Grid Interconnection & Compliance Studies * Load flow and operating case assessment * Short-circuit / fault level calculations * RMS dynamic stability studies * Grid code and interconnection compliance benchmarking * Utility / ISO submission-ready technical reports * Model review, validation, and technical support during review cycles ### Renewable Generation / BESS / Hybrid Plants * Solar PV, Wind, BESS, and Hybrid plant interconnection studies * LVRT / HVRT / LFRT / HFRT assessment * Reactive power capability and voltage control performance * Frequency response and plant controller performance * Weak-grid assessment and control interaction review * PRC / MOD / MQT / G99 / G5 compliance support ### Data Center & Large Load Studies * Grid connection studies for **large industrial loads and data centers** * Load flow, contingency, and thermal capacity assessment * Point of interconnection screening and transfer capability review * Motor starting / dynamic load behavior review where applicable * Voltage stability and reactive power performance assessment * Large load ride-through and dynamic behavior assessment * Support for connection strategy, substation concept review, and utility-facing technical documentation ### Design & Engineering Support * Single-line diagrams (SLD) * Cable and conductor sizing * Grounding / earthing grid studies * Surge arrester selection and insulation coordination * Protection coordination and selectivity studies * Relay setting review and interface logic support ## Technical Services ### Short-Circuit Studies * Fault calculations to IEC 60909 and IEEE methods * Breaker duty and X/R ratio verification * IBR fault contribution assessment * Faulted operating condition evaluation ### Dynamic (RMS) Studies * Transient stability and oscillatory damping * Frequency response and control performance * LVRT / HVRT / LFRT / HFRT benchmarking * Weak-grid and controller interaction studies * Plant controller and model tuning support ### EMT Studies * IBR control interaction and converter dynamics * Fast transient and weak-grid EMT validation * Special operating scenarios and black-start studies where required * OEM / utility EMT model review and benchmarking ### Protection & Control Interface * Relay coordination support * PRC-019 interface checks * Voltage / frequency protection coordination with IBR controls * SCADA / Modbus / IEC 61850 signal and interface logic review ## Grid Codes & Standards Experience **United States** NERC PRC(029 024 019) & MOD(025 026 027 032) standards, ERCOT, PJM, NYISO, MISO, SPP, CAISO IEEE 519, IEEE 1453, IEEE 1547 ERCOT model quality and interconnection processes **United Kingdom** ENA G99 ENA G5/5 P28 / P29 DNO submission and acceptance support **Germany / EU** VDE-AR-N 4110 / 4120 FGW TR3 / TR4 / TR8 references Additional regions can be supported based on project documentation and applicable grid-code requirements. ## Software * PSS®E * DIgSILENT PowerFactory * PSCAD * ETAP * MATLAB / Simulink * AutoCAD ## Deliverables * Technical reports * RAW / DYR files * PowerFactory projects * PSCAD cases * ETAP models * Parameter summaries * Validation plots * Submission support documents ## Why Clients Work With Me * Clear scope definition from the start * Strong RFIs and efficient data collection * Technically defensible assumptions * Utility-ready reports and plots * Combined RMS and EMT capability I can support complete interconnection packages or single-study scopes, depending on project needs. If you have an RFP, grid-code requirement, interconnection document, utility feedback package, or study scope, I can review it and help define a clear technical approach, deliverables list, and schedule.

I help businesses and teams turn ideas into working robotics solutions. With deep expertise in robotics software, hardware, and algorithms, I deliver collaborative, transparent, and results-driven project experiences. ## Service: - End-to-end development: From concept, R&D, and simulation (ROS/ROS2) to deployment and support - Collaborative workflow: Clear communication, regular updates, and shared documentation - Flexible engagement: Solo or team-based, remote or hybrid, tailored to your needs - Modern codebase: C++ (11/14/17), Python, Git, CI/CD, and best practices ## Technical Skills - 3D Computer Vision: SLAM, VIO, SFM, modeling - AI Vision: Object detection, segmentation, stereo vision - State Estimation: Kalman filter, sensor fusion - Control & Navigation: PID, MPC, pathfinding, motion planning - Deep Learning: Camera/Lidar, object detection, segmentation - Sensor Integration: Camera, IMU, Lidar - Robot Control: Motor, arm, embedded systems, PCB design - Edge AI, IoT, LLM applications ## Features - Experience working with international teams and clients - Strong documentation and demo delivery for easy onboarding - Open to code reviews, joint development, and knowledge sharing - Long-term support and maintenance available ## Background - 15+ years C++ (C++11/14/17) - 5+ years Python - 10+ years 3D graphics (OpenGL, AR/VR) - 5+ years computer vision (OpenCV, SLAM/SFM) - 8 years drone/robot control (ROS simulation) - PCB design, 3D printing, prototyping, production - Hardware, lab, and robotics development - BSEE, 10+ years in IC/FPGA and embedded systems - Lab experience: MCU, IMU, Lidar, camera, sensors - 3D print enclosure

Hi to all of my fellow clients! I have 3 years of experience in the fields of Power System Studies, Electrical Engineering, Power Electronics and related fields. I have finished my Masters with EPFL university in Switzerland (at one of the best universities in Europe), with my major in Energy Science and Technology. I will be happy to assist you with any problem you might come up.

I am an expert Hardware designer/ Researcher with more then 12 years of experience in the hardware design and research field. I have MS degree in IC design from Sungkyunkwan University South Korea. My experience includes 🖥️ Hardware Design -- Altium based PCB (upto 20 layers) design for Embedded Systems, ADCs, PMU etc -- MCU based O2 sensor board, scale board (Mass production, 500 units/year) -- Hand held Fetal Monitor system, Design to Qualification (Production 10,000 units/year) -- Patient Monitoring System, Design to Qualification (Production 10,000 units/year ) -- 6 & 32 channel EEG signal acquistion board, Concept to Prototyping ( noise less then 3uV p-p noise with electrodes) -- 24/32 bit SD ADC based analog data acquision board -- FPGA + TMS Processor based controller board design -- Simulations for parameters analysis of complex PCBs (CST) 🖥️ Verilog HDL Programming 1️⃣Glue Logic of sensors/ICs and embedded system for Xilinx and Altera FPGAs 2️⃣High speed interfaces including JESD204B, SPI, I2C, UARTs, MIL-STD-1553B etc 3️⃣IDEs including Xilinx ISE, Vivado, Quartus and ModelSim 🖥️ LabVIEW 1️⃣QMH and DQMH Architectures 2️⃣ Real time data acquisition and analysis 3️⃣ GUIs and displays 🖥️ Embedded systems 1️⃣Microchip PIC32, STM32, ESP32, nRF series 2️⃣Atmege series Microcontrollers 3️⃣TI DSPs, Arduino Framework, MPLAB X MHF v3, VS code as editor

Transforming complex data and novel research concepts into production-ready AI solutions. With over 8 years of experience at the intersection of AI research and enterprise-level engineering, I specialize in tackling challenges that require more than off-the-shelf solutions. I architect and build robust, scalable systems that turn raw data—from satellite feeds to real-time video—into actionable intelligence. Here's What I Build: 🛰️ Advanced Geospatial & Vision Systems: I develop end-to-end computer vision pipelines for complex environments. My experience includes: • Smart City Solutions: Building traffic monitoring and management systems using real-time object detection and tracking (as demonstrated in the Urban Guard project). • 3D Mapping & LiDAR Processing: Creating high-precision 3D models from LiDAR data for vehicle and drone tracking (showcased in the LiDARView system). • Automated Sports Analytics: Designing systems to track player and ball movements for real-time statistical analysis (like the Trackzella project). 💡 Custom Data & Annotation Platforms: I understand that great AI starts with great data. I build the foundational tools necessary for high-performance models: • Synthetic Data Generation: Engineering platforms to create diverse, realistic datasets for robust model training (proven with the Imagate platform). • Multi-Format Annotation: Developing collaborative tools for labeling images, video, and text to power specialized AI models (like the Anna annotation platform). ☁️ Scalable MLOps & Deployment: A model is only valuable when it's in production. I ensure your AI solutions are reliable and efficient using modern DevOps practices, including containerization (Docker, Kubernetes) and deployment across major cloud platforms (AWS, Azure, GCP). Key Technology Stack: • Languages & Frameworks: Python, PyTorch, TensorFlow, OpenCV • MLOps & Cloud: Docker, Kubernetes, AWS (SageMaker, S3), GCP (Vertex AI), Azure • Data & CV: LiDAR, Satellite Imagery Processing, Pandas, NumPy, Scikit-learn Are you looking to solve a complex R&D problem or build a first-of-its-kind AI application? Let's connect for a brief consultation to discuss your vision.

Are you looking for a Data Scientist who can transform your data into actionable insights and build AI solutions that solve real business problems? With 5+ years of professional experience, I specialize in developing end-to-end Data Science and Machine Learning solutions from data collection and preprocessing to model development, evaluation, and deployment. I have worked with startups, research teams, and businesses across multiple industries, helping them leverage data to make smarter decisions and automate complex workflows. My background combines strong analytical thinking with hands-on industry experience, allowing me to deliver solutions that are not only accurate but also scalable and production-ready. My Expertise, ✅ Data Science & Machine Learning ⦁ Predictive Modeling ⦁ Classification & Regression ⦁ Clustering & Segmentation ⦁ Feature Engineering ⦁ Model Selection & Optimization ⦁ Statistical Analysis ⦁ Time Series Forecasting ⦁ Model Evaluation & Deployment ✅ Artificial Intelligence ⦁ Machine Learning ⦁ Deep Learning ⦁ Computer Vision ⦁ Natural Language Processing (NLP) ⦁ Large Language Model (LLM) Applications ⦁ Retrieval-Augmented Generation (RAG) ⦁ AI Automation ✅ Python & Data Analytics ⦁ Python (Pandas, NumPy, Scikit-learn) ⦁ TensorFlow & PyTorch ⦁ SQL ⦁ Data Cleaning & Preprocessing ⦁ Exploratory Data Analysis (EDA) ⦁ Data Visualization (Matplotlib, Plotly) ✅ Data Engineering & Automation ⦁ ETL Pipelines ⦁ Apache Airflow ⦁ Airbyte ⦁ API Integration ⦁ AWS ⦁ Workflow Automation 💼 Recent Projects ✔ Developed machine learning models for agricultural spectroscopy to predict moisture content and chemical properties from NIR spectral data. ✔ Built an AI-powered WhatsApp customer support system using Large Language Models (LLMs) and Retrieval-Augmented Generation (RAG). ✔ Designed and automated scalable ETL pipelines using Apache Airflow and Airbyte for ingesting and processing data from multiple APIs. ✔ Developed deep learning models for medical image analysis, including diabetic retinopathy detection. ✅ Why Clients Choose Me * 5+ years of industry experience in Data Science and Artificial Intelligence. * Strong expertise in Machine Learning, Deep Learning, NLP, and Python. * Experience building production-ready AI solutions, not just research prototypes. * Clean, maintainable code with a focus on performance and scalability. * Clear communication, timely delivery, and long-term client relationships. Whether you need to build a predictive model, develop an AI-powered application, automate data workflows, or extract valuable insights from your data, I'm committed to delivering solutions that create measurable business value. Let's discuss your project and build something impactful together!

Hello! I am an electrical engineer with over 5 years of experience in embedded systems and control engineering. If you need guidance on the best way to frame your electronics project, someone to do your embedded software (firmware) coding, or if you need help tuning a controller, I'd be happy to work with you. My experience: • Embedded software and hardware architecture • Control system design and implementation • Firmware development in C/C++, bare or RTOS • Python scripting • IoT protocols: LTE, MQTT, TCP/IP, HTTP, CoAP, BLE, GNSS • Communication protocols CAN, SPI, UART, I2C • Various boards and MCUs: STM32, TI, AVR, nRF, ESP, Arduino, RPi

Hello, I’m Dr. Ajeet Kumar Bhatia, a PhD in Control Theory & Control Engineering with 10+ years of hands-on experience in embedded systems, electronics design, control algorithms, and product-level engineering. I currently work as a Lead Engineer in a major automotive research and development environment, where I design and deliver production-grade embedded software and hardware solutions. Alongside this, I have been an active freelancer for several years, successfully completing 70+ engineering projects for international clients across embedded systems, PCB design, IoT, and control applications. My strength lies in combining deep theoretical expertise with practical engineering execution—from early concept and system architecture to implementation, debugging, validation, and documentation. I am comfortable working on both software and hardware, and I understand how real-world constraints (timing, power, cost, manufacturability, reliability) shape good engineering decisions. Key Expertise =========== - Embedded Systems & Firmware Development * C / C++, AUTOSAR (CP & AP), Complex Device Drivers * ESP32, ARM, Renesas RH850, Infineon Traveo, AVR, SAMD - Electronics & PCB Design * Schematic design, multilayer PCB layout, prototyping, testing * Altium Designer, Eagle, Proteus, LTspice - Control Systems & Algorithms * Advanced control, estimation, observer design * MATLAB / SIMULINK - Automotive, IoT & Industrial Systems * CAN, LIN, FlexRay, Ethernet, SPI, I²C, UART, MQTT - Debugging, Validation & Documentation * Hardware bring-up, system debugging, test planning * Technical reports, design documentation, presentations Why Clients Work With Me ===================== - PhD-level engineering depth with real product experience - Clear communication and structured problem-solving - Strong attention to reliability, maintainability, and performance - Proven ability to deliver complex technical work on time - Experience working with global clients and cross-functional teams I am open to short-term tasks, full prototype development, and long-term technical collaboration. Work samples and project details can be shared upon request. If you’re looking for a senior embedded & electronics engineer who understands both theory and real-world implementation, I’d be glad to help.