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I am a Hardware Engineer with 6+ years of experience in PCB Design, Microcontroller Programming, and Embedded Systems development. I specialize in building robust Hardware solutions using ESP32, STM32, Arduino, and Raspberry Pi platforms. From initial Schematic capture in Altium or KiCad to final production-ready devices, I deliver high-performance electronics that work in the field. Highlights: - 100% Client success score - 95% first-pass PCB success rate across 100+ boards - Reduced BOM cost by 10–20% per unit through component optimization - Designed and reviewed 100+ PCBs across IoT, industrial, and automotive sectors - Firmware optimized on battery-powered ESP32 devices 📍 Core Services: 1. Professional PCB Design & Schematic Capture - High-quality PCB Design delivery using industry-standard tools like Altium and KiCad. - Schematic development and PCB Design for multilayer boards. - Hardware Design focusing on DFM/DFA (Design for Manufacturing). - Expertise as a PCB Designer in Altium Designer, KiCad PCB, and EasyEDA. - PCB Design for PCB Audio, RF, and high-speed digital interfaces. - Professional PCB Design and Circuit Designer services for Electronics projects. 2. Expert Microcontroller Programming & Firmware - Expert Microcontroller Programming for diverse industrial and consumer platforms. - Microcontroller Programming for ESP32, STM32, Arduino, and Raspberry Pi. - Embedded Systems development using Embedded C and C language. - Custom Firmware and Embedded Software for Embedded Systems IoT applications. - Advanced Microcontroller Programming for ESP32 Firmware, STM32 HAL, and Arduino Programmer tasks. - Embedded Systems and Microcontroller Programming for Robotics and Python-based logic. 3. Strategic Leadership & IoT Solutions - I lead ARTAXE Electronics, a hardware engineering team. As CEO and Electronics Engineer, I ensure every Embedded Systems project is scalable and commercially viable. - IoT architecture for ESP32 and Raspberry Pi systems. - Embedded Systems Engineer services for Embedded Systems with long-range connectivity. - Integration of Schematic designs with Antenna Design and PCB Firmware. - Deployment of Embedded Systems for AgTech (PivotHawk) and industrial monitoring. 4. Mechanical Design & Enclosure Development - Bridging the gap between an Electrical Engineer and a Mechanical Engineer. - Mechanical Design using SolidWorks, AutoCAD, and CAD tools. - Enclosure Design and Industrial Design for IP-rated devices. - Professional Mechanical Design Engineer and Enclosure Designer support. - Mechanical Designer services for custom Hardware housing. Why Partner With Me❓ ✅ Altium & KiCad Mastery: Expertise in Altium for high-end professional projects and KiCad for open-source flexibility. The workflow in Altium ensures precision, while KiCad provides cost-efficiency. ✅ Prototyping & Production: I don't just create a Schematic; I deliver a working device. From Arduino prototypes to STM32 production units. ✅ Comprehensive Hardware Support: Every Hardware project includes a thorough Schematic review and PCB Design Circuit Design validation. ✅ Reliable Microcontroller Programming: Providing Embedded Engineer grade code for ESP32, STM32, and Raspberry Pi nodes. 💡 Technical Toolkit: ✅ Software: Altium, KiCad, EagleCAD, EasyEDA, SolidWorks, AutoCAD. ✅ Platforms: ESP32, STM32, Arduino, Raspberry Pi, nRF52, i.MX8. ✅ Focus: Embedded Systems, IoT, PCB Design, Microcontroller Programming. Ready to bring your hardware vision to life❓ From the initial Schematic stage to the final PCB Design and production support, I am dedicated to your project's success. Whether you need a simple prototype or a complex Hardware system, let's discuss how my expertise can drive your innovation forward. ❗ Click the "Message" or "Invite" button to start a conversation about your project today❗

❤Thank you for visiting my profile.❤ My name is Tetiana Medetska, a dedicated Electronic Hardware and Firmware Engineer specializing in creating innovative and high-quality solutions for electronic product development. I am passionate about transforming ideas into reality through meticulous design and development. -Core Competencies: -PCB Design & Development: Expert in designing reliable, high-performance printed circuit boards (PCBs). Specialization in power supply circuits (DC-DC, AC-DC conversions) and multilayer designs for embedded systems. Proven track record in developing efficient LED driver circuits and RF PCB layouts. -Firmware Development: Extensive experience programming microcontrollers including STM32, DSPIC, ESP32 and ESP8266. Mastery of communication protocols such as UART, SPI, Ethernet, USB, CAN, and MODBUS for seamless integration. Proficient in implementing wireless technologies including Wi-Fi, Bluetooth, and ZigBee. -RF Design & Analysis: Strong capabilities in RF circuit design, antenna optimization, and simulation for applications like WiFi, Bluetooth, and RFID. Expertise in developing RF filters, splitters, transceivers, and power amplifiers tailored to specific application needs. I am committed to delivering cost-effective, high-quality solutions without compromising performance or deadlines. I welcome the opportunity to connect and discuss how I can contribute to your projects.

✅ Hardware Designer | ✅ Embedded & Firmware Developer | ✅ Software Engineer I'm an experienced electronic engineer with over 14 years of expertise in hardware and software design. My key strengths include: - PCB Design - Circuit Design - Firmware Development for STM8 & STM32 Whether you need a custom PCB layout, a sophisticated circuit, or reliable firmware, I’m here to deliver innovative solutions that meet your needs. Core Skills: - Programming: C, C++, Python, PyQt, Bash - Tools: KiCAD, Altium Designer, LtSpice, IAR, STVD + COSMIC, Keil, Postman, Wireshark, PyCharm, MySQL Workbench, Visual Studio, Eclipse, Git Extended Experience In my most recent project, I utilized: - Project Management Tools: Jira, Confluence, Bitbucket - Embedded Software: C, C++, Python, Embedded Linux, MariaDB, Qt - PC Software: Python, PyQt - Cloud Technology: AWS, Python, MariaDB, Docker, JavaScript - PCB Design Tools: Altium Designer, KiCAD, LtSpice - Testing & Debugging: UL2524, Wireshark, Postman, MySQL Workbench, Oscilloscope, Digital Analyzer, Soldering Equipment Let's Work Together: With my broad skill set and attention to detail, I can turn complex engineering challenges into seamless, practical solutions. I’m excited to collaborate and bring your projects to life!

I am a CAD engineer and product designer with proven expertise in developing innovative and practical solutions for diverse industries. My approach combines precision, creativity, and engineering knowledge to deliver models and prototypes that are both functional and production-ready. ✔ 3D Modeling & Design – Creation of precise, manufacturable models that meet industry standards and client requirements. ✔ Technical Drawing & Documentation – Clear, accurate drawings to support efficient manufacturing and prototyping. ✔ 3D Visualization – High-quality renderings and visualizations that effectively communicate complex concepts. ✔ Manufacturing Expertise – Optimization of models for 3D printing, CNC machining, and other production processes. I am proficient in SolidWorks, Fusion 360, and Onshape, which allows me to adapt seamlessly to different workflows and project requirements. My experience spans the entire product development cycle — from initial concepts and prototypes to production-ready designs. Beyond CAD, I am passionate about robotics, electronics, and automation, which continuously inspire me to integrate innovation with practicality in every project. My guiding principle: the most important project is always the one I’m working on right now and the one I will take on tomorrow. Each challenge is an opportunity to push boundaries, improve, and deliver meaningful solutions. If you are looking for a reliable and experienced professional to support your next project, I will be glad to help you achieve your goals.

Full-Cycle Hardware & Embedded Engineer | PCB · Firmware · Linux · $200K+ Earned | 12 Years I take hardware products from schematic to working prototype — covering PCB design, embedded firmware, and bench validation as one integrated process. Whether you're building an IoT device, an industrial controller, or a consumer electronics product, having the PCB design and firmware developed by the same engineer eliminates handoff gaps and avoids costly re-spins. With 12+ years of experience, $200K+ earned on Upwork, and a 100% Job Success Score across 35 completed projects, I deliver end-to-end embedded product development from first schematic to production-ready hardware. I work best with product companies and engineering teams who need a reliable technical partner, not just a file deliverable. ━━━━━━━━━━━━━━━ ⚡ WHY CLIENTS CHOOSE ME ━━━━━━━━━━━━━━━ ✅ $200K+ earned | 100% Job Success Score | Top Rated ✅ 12+ years of PCB design and embedded systems engineering ✅ Full in-house lab — I build and test what I design, not just send files ✅ End-to-end: PCB design → firmware → embedded Linux → software → prototype validation ✅ Flexible toolset: Altium Designer (preferred for complex PCB layout), Eagle, KiCad, Fusion 360, SolidWorks — I adapt to your workflow ✅ Team-ready: experienced working as a technical partner inside product companies and cross-functional teams ━━━━━━━━━━━━━━━ 🔧 PCB DESIGN ━━━━━━━━━━━━━━━ Tools: Altium Designer (primary — schematic capture and PCB layout), Eagle, KiCad, Fusion 360 • Multi-layer PCB design — 2 to 12+ layers, rigid, flexible, and rigid-flex • PCB layout for IoT devices, industrial control boards, and consumer electronics • High-speed interfaces: USB 2.0/3.0, Ethernet, DDR3/DDR4, HDMI, PCIe, LVDS • Controlled impedance, differential pairs, length matching • Mixed-signal and analog design: ADC/DAC front-ends, power electronics, op-amp circuits, filters • EMI/EMC-optimized layouts, signal and power integrity • Design for Manufacturing (DFM/DFA): Gerbers, BOM, assembly drawings, CPL files • Component selection and BOM cost optimization ━━━━━━━━━━━━━━━ ⚙️ EMBEDDED FIRMWARE — C / C++ ━━━━━━━━━━━━━━━ • Bare-metal and RTOS firmware: STM32, ESP32, AVR/ATmega, ARM Cortex-M, NXP, Nordic nRF52 • FreeRTOS: task scheduling, inter-process communication, low-power optimization • Wireless: BLE 4/5, Wi-Fi, LoRa/LoRaWAN, GSM/LTE, NB-IoT, GNSS • Peripheral drivers: SPI, I2C, UART, CAN, RS485, USB, ADC, PWM, DAC • Bootloaders, OTA firmware updates, hardware diagnostics and logging ━━━━━━━━━━━━━━━ 🐧 EMBEDDED LINUX ━━━━━━━━━━━━━━━ • Linux-based products on iMX6, STM32MP, Raspberry Pi, and custom SoMs • Custom Linux drivers, application development, system-level integration • Cloud and IoT connectivity: MQTT, AWS IoT, REST APIs • Build systems: Yocto, Buildroot ━━━━━━━━━━━━━━━ 💻 SOFTWARE & TOOLS ━━━━━━━━━━━━━━━ • Python: test automation, data processing, scripting, GUI applications • C++ desktop and GUI applications (Qt, ImGUI) • Computer vision: OpenCV pipelines for embedded and edge platforms • 3D mechanical design: SolidWorks — enclosures, brackets, electromechanical integration • 3D scanning and point cloud processing ━━━━━━━━━━━━━━━ 🔬 IN-HOUSE LAB & HARDWARE VALIDATION ━━━━━━━━━━━━━━━ I don't just send files — I build and validate. My in-house lab covers hardware bring-up, PCB layout review and debugging, signal integrity testing, and prototype validation: oscilloscopes, logic analyzers, soldering and rework stations, programmable power supplies, and more. This means fewer surprises for you at the prototype stage — and zero surprises at manufacturing. ━━━━━━━━━━━━━━━ 🏭 INDUSTRIES ━━━━━━━━━━━━━━━ ✔ IoT & Connected Devices ✔ Industrial Automation & Control ✔ Consumer Electronics ✔ Embedded Linux Products ✔ Robotics & Motion Control ✔ Computer Vision & Machine Vision Systems ━━━━━━━━━━━━━━━ 📦 WHAT YOU RECEIVE ━━━━━━━━━━━━━━━ Each project includes complete, manufacturing-ready documentation: • Schematic source files • PCB layout files (Altium / Eagle / KiCad native format) • Gerber + NC Drill files • Bill of Materials (BOM) • Assembly drawings and CPL files • Firmware source code with comments ━━━━━━━━━━━━━━━ 📩 LET'S WORK TOGETHER ━━━━━━━━━━━━━━━ I prefer working with product companies and engineering teams on IoT, industrial, and embedded projects where full hardware-software integration matters. If that sounds like you — send a message with your project details and I'll respond with a clear assessment and plan. ━━━━━━━━━━━━━━━ 🔑 KEYWORDS ━━━━━━━━━━━━━━━ PCB Design, Altium Designer, Eagle, KiCad, Embedded Systems, Firmware Development, Embedded C, C++, STM32, ESP32, ATmega, AVR, ARM Cortex, Nordic nRF52, Embedded Linux, iMX6, STM32MP, FreeRTOS, Raspberry Pi, BLE, Wi-Fi, LoRa, LoRaWAN, MQTT, IoT, Python, Industrial, Schematic Design, PCB Layout, Multilayer PCB, High-Speed PCB, SolidWorks, EMI/EMC, DFM, DFA, BOM, Gerber, Mixed-Signal, Signal Integrity, Rigid-Flex PCB, RS485

Main work profile: battery chargers, USB Power Delivery, analog interfaces for sensors, low and high-speed ADCs, Bluetooth and wired data exchange, onboard local power sources (step-up, step-down, etc...), making basic firmware for: STM32, ESP32, PIC, AVR using native frameworks or/and Arduino framework, libs for attached hardware. Optimizing schematics/PCB/BOM (simple IoT or simple devices based on most popular components) for fast and low cost prototypes assembly. Experience in electronics design - 21 years Deep knowledge in Altium Designer, KiCAD and P-CAD. Also can freely work in EasyEDA, Diptrace, Eagle, MultiSim