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❤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.

I am a Hardware Engineer with 10+ 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: Professional PCB Design & Schematic Capture - High-quality PCB Design delivery using Altium and KiCad with 100+ commercial products launched globally. - Schematic development and PCB Design for high-density multilayer boards (up to 16+ layers, microvias, HDI). - Hardware Design focusing on DFM/DFA, achieving 98% First-Time-Right fabrication with zero board respins. - Expertise as a PCB Designer in Altium Designer, KiCad PCB, and EasyEDA with 10,000+ hours of hands-on layout experience. - PCB Design for PCB Audio, RF (up to 6+ GHz), and high-speed digital interfaces (DDR4/PCIe Gen4 length matching). - Professional PCB Design and Circuit Designer services for Electronics projects, cutting time-to-market by 30% via IPC-Class 3 compliance. Expert Microcontroller Programming & Firmware: - Expert Microcontroller Programming for diverse industrial and consumer platforms with 99.9% uptime in production. - Microcontroller Programming for ESP32, STM32, Arduino, and Raspberry Pi, covering 200+ deployed nodes. - Embedded Systems development using Embedded C and C language, optimizing memory footprint by up to 40%. - Custom Firmware and Embedded Software for Embedded Systems IoT applications with MISRA C compliance and AES-256 security. - Advanced Microcontroller Programming for ESP32 Firmware, STM32 HAL, and Arduino Programmer tasks with FreeRTOS multi-threading. - Embedded Systems and Microcontroller Programming for Robotics and Python-based logic, accelerating sensor polling rates by 3x. 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, managing $500K+ in R&D budgets. - IoT architecture for ESP32 and Raspberry Pi systems, supporting 10k+ active concurrent devices in the cloud. - Embedded Systems Engineer services for Embedded Systems with long-range connectivity (LoRaWAN/LTE-M up to 15km range). - Integration of Schematic designs with Antenna Design and PCB Firmware, improving signal integrity and wireless range by 25-30%. - Deployment of Embedded Systems for AgTech (PivotHawk) and industrial monitoring across 50,000+ hectares / 100+ industrial sites. Mechanical Design & Enclosure Development - Bridging the gap between an Electrical Engineer and a Mechanical Engineer, ensuring 0mm clearance errors via precise ECAD-MCAD co-design. - Mechanical Design using SolidWorks, AutoCAD, and CAD tools with 0.05mm tolerance precision. - Enclosure Design and Industrial Design for IP-rated devices (up to IP67/IP68 water & dustproof standards). - Professional Mechanical Design Engineer and Enclosure Designer support, optimizing parts for injection molding to cut tooling costs by 20%. - Mechanical Designer services for custom Hardware housing, validated through 50+ rapid prototypes (3D-printed ASA/SLA). 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❗

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

I’m Pavlo Pohuliailo, Founder of Deveteria (AI Development Team) - raised $100k in the financial year 2025-2026) Over the last few years, I’ve led 20+ AI solutions from idea to enterprise-grade production. With a team of 50+ experienced AI Engineers, AI Agent Developers, AI Researchers, IOS Mobile developers (Flutter, React Native), Frontend developers, Backend developers, Product Manager, DevOps, MLOPS, and many more. ✅ We are a fit if: Your company has a minimum of 5+ people already executing. You are the direct decision maker or can approve technical direction. Your project budget is at least $5,000 USD+ for the first phase. You aim for at least $10,000+ measurable efficiency or operational savings within 90 days from AI deployment. You are ready to begin within the next 2 weeks. ❌ We are not a fit if: Pricing is the primary factor above outcome, speed, and quality. You expect provable meaningful results inside 14 days or less. Your business falls under gambling, adult, or similar restricted categories. You are not collaborative or not open to strategic guidance. ⚡ Real Results ✅ TOINGG – Handles 10,000+ AI calls/min with 99.9% uptime ✅ AI Outreach Engine – Converted 200 cold messages → 8 booked meetings ✅ Trusted globally – by startups, agencies & enterprises across the US, UK, UAE, Australia and many more.. 🧩 Our Expertise 🔊 AI Voice & Communication - AI calling agents (TOINGG – our own product) - Voice interviewers & virtual receptionists - WhatsApp + Voice chatbot integrations - Sentiment-aware, memory-powered bots 🧠 Autonomous AI Agents - Multi-agent systems for recruiting, trading & operations - GDPR & EEOC-compliant recruiter AI - RAG pipelines + LLM-based decision logic - Hybrid human + AI workflows 🛍️ eCommerce & Retail AI - Shopify-integrated voice bots - Dynamic product recommendation systems - AI-powered sales & support automation 📊 AI Analytics & Insights - Personalized recommendation engines - AI-driven dashboards & business forecasting - Automated reporting with natural-language summaries 💼 Custom AI Use-Cases - Legal AI (Spanish law databases – RAG-based) - AI content & script generators for marketing - Healthcare marketplaces with smart matching 💡 How We Help 🔨 End-to-End Product Development - From idea → MVP → scale 👥 Team Augmentation - Add our vetted AI engineers or full dev pod to your team ⚙️ Optimize or Scale Existing Systems - We take over, refactor, and scale existing products seamlessly 🤝 Why Teams Work With Us ✅ Proven AI & Product Experience – not just prototypes, we ship in production ✅ Startup-Minded Speed – we build like cofounders, not contractors ✅ Enterprise-Grade Quality – security, compliance, uptime built-in ✅ Transparent Estimates – no surprises, every milestone defined ✅ Expert-Led Team – 32 vetted AI engineers & product specialists 💬 Let’s Talk We usually respond within minutes. Whether you’re building a new AI product or scaling an existing one — let’s make it production-ready. 📩 Message me today and let’s bring your AI vision to life.

✔ IoT Solution Leader | Leading a team of 220+ engineers ✔ 11+ Years in connected products | End-to-end IoT development ✔ Hardware + Firmware + Cloud Expertise Drop me a message with “DISCOVERY” - we’ll run a free discovery session and turn your idea into a clear architecture, timeline, and execution roadmap while avoiding costly mistakes early on. I lead a 220+ engineer team specializing in end-to-end IoT development – from early discovery and architecture to prototyping, production preparation, and long-term product evolution. Over the last 11+ years, I’ve been involved in building connected solutions that combine embedded systems, electronics, firmware, cloud platforms, and user apps (web, mobile, desktop). My role is focused on bridging business goals with engineering reality: helping teams validate ideas, select the right architecture, reduce technical risks, and build products that can successfully move from prototype to production. Core expertise: • IoT system architecture Designing complete connected ecosystems: devices, communication layers, cloud infrastructure, data flows, APIs, and user applications. • Embedded systems & firmware MCU/MPU-based development, RTOS, embedded Linux, device drivers, hardware communication protocols, low-power optimization, OTA updates. • Hardware development & prototyping Electronics design, schematics, PCB development, hardware bring-up, testing, validation, and preparation for mass production. • Connectivity & communication BLE, Wi-Fi, LoRaWAN, LTE/cellular, MQTT, sensor integration, and reliable device-to-cloud communication. • IoT cloud platforms AWS IoT, device management, telemetry pipelines, real-time monitoring, analytics, and scalable backend architectures. • Connected applications Web dashboards, mobile apps, desktop applications, admin portals, device management platforms, and third-party integrations. Typical IoT products I work with: • Industrial IoT & Industry 4.0 Connected machinery, predictive maintenance, industrial automation, sensor networks, and remote monitoring. • Smart Home & Building Automation Connected devices, automation platforms, energy management, and intelligent control systems. • Healthcare & Wearables Connected medical devices, monitoring solutions, wearable ecosystems, and compliance-focused development. • Energy & Infrastructure Smart metering, energy monitoring, telemetry systems, and remote control solutions. • Location-based products GPS tracking, asset tracking, fleet monitoring, and safety-focused connected devices. • Robotics & Drones UAV/UGV/UAS platforms, telemetry, control systems, and autonomous solutions. Selected project experience: • GPS tracking ecosystem Built a connected solution combining hardware devices, firmware, cloud infrastructure, mobile applications, and management dashboards for real-time tracking and alerts. • Wearable safety platform Developed an IoT wearable ecosystem with embedded software, wireless connectivity, cloud services, and user-facing applications. • Industrial monitoring solution Created a sensor-based platform for collecting operational data, processing telemetry, and providing actionable insights through dashboards. Why clients work with me: • Strong industrial and commercial product development experience I work with complex products where reliability, scalability, security, and real-world constraints matter. • Ability to handle both hardware and software challenges IoT success depends on how all system components work together - not isolated development tasks. • Clear communication and structured development process Transparent milestones, technical documentation, predictable execution, and clear ownership at every stage. • Focus on practical solutions I help teams avoid unnecessary complexity and choose architectures that fit actual product goals. • Long-term support mindset Project scope for reference: Phase 01 – Definition & Architecture: $15k–$25k Discovery, requirements analysis, system architecture, technology selection, and roadmap creation. Phase 02 – Prototype & Validation: $35k–$120k Hardware prototypes, firmware, cloud infrastructure, applications, testing, and product validation. Phase 03 – Production Readiness: $60k–$250k+ Production optimization, manufacturing support, certification preparation, scalability improvements, and deployment. My approach: I don’t start with coding. I start by understanding the product vision, business goals, technical constraints, and future scaling requirements. The goal is to create IoT systems that work reliably in real-world conditions, avoid expensive redesigns, and provide a strong foundation for future growth. If you’re building a connected product involving hardware, firmware, cloud, or device management - feel free to share your idea. I'm ready to help evaluate the technical approach and identify the most practical path forward. Worth a chat?

✅ Top-Rated Upworker - Senior Hardware Engineer, Mass Production Expert, Firmware and Software developer - To Get Your Project Developed From Scratch To Mass Production. With 30+ years experience in electronics engineering designed power, analog and digital electronics, including PCB, embedded and mechanics design. I have served a wide variety of industries and have developed initial concepts and prototype devices as well as producing products that go into full scale production manufacturing. Key Offerings: •Digital circuits design •Power circuits design •Analog, precision and low noise circuits PCB design •Housing and mechanics for electronics •Consulting in electronics •Cost optimization of existing projects •Developing modern analogues of existing devices •Software and firmware development •Server solutions Projects developed by me include: - Compact single board ARM computer/router - Virtual reality suit for medical purposes - Autonomous, solar-powered lamp with controller for DIN-rail - Smart Battery Management System (BMS) - Linux body cam