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A startup founder came to me with a four-week investor deadline, a constrained enclosure, and no schematics. We engineered a dense 6-layer IoT PCB layout with full signal integrity simulation it powered up perfectly on the first pass, secured their seed round, and earned this review: “He didn’t just design a circuit board, he literally saved our investor launch.” That outcome isn't luck. It's the result of treating every hardware engagement as a production problem from day one, not a prototype exercise. I'm a Top Rated Plus PCB design engineer and electrical engineering specialist with 5+ years of experience and 85+ completed hardware deployments across IoT devices, industrial automation, robotics platforms, and medical device electronics. My work covers the full hardware development cycle, schematic design, multilayer PCB layout, embedded systems integration, signal integrity optimization, and manufacturing-ready deliverables that hold up through fabrication and real-world operation. Recent projects include a flexible PCB design for NIR (near-infrared) sensing and a Bluetooth lapel microphone board built on the Nordic NRF52840 compact, signal-sensitive hardware where PCB layout discipline, impedance control, and RF interference management directly determine whether the product works. ESP32 and STM32 embedded systems, BLE and WiFi communication hardware, motor controllers, and power electronics for EV and industrial automation applications make up the rest of my active project history. ● How I Work: I design primarily in Altium Designer and KiCad, with schematic design and IPC-compliant component sourcing completed before layout begins. Every PCB layout is built around DFM and DFA principles, high-speed routing, impedance control, EMI/EMC mitigation, differential pair routing, and thermal management so respins stay rare and first-pass success rates stay high. Deliverables include fabrication-ready Gerber files (RS-274X/ODB++), CPL/pick-and-place files, and production-ready Bills of Materials. No loose ends at handoff. ● Core Expertise: ⁃ PCB Design & Layout: Multilayer PCB layout (2-layer to 12+ layer), high-speed routing, signal integrity analysis, impedance matching, EMI/EMC mitigation, rigid-flex PCB design, thermal management, DFM/DFA optimization ⁃ Schematic Design & Circuit Engineering: Schematic capture, analog and digital circuit design, mixed-signal circuit development, power electronics design, BOM optimization, component lifecycle analysis ⁃ Embedded Systems & IoT Hardware: ESP32, STM32, ARM Cortex embedded hardware development, BLE and WiFi system integration, low-power IoT hardware design, embedded firmware-ready platform development, wireless sensor node design ⁃ ECAD Tools: Altium Designer, KiCad, Autodesk Eagle footprint and library generation to IPC standards ⁃ Manufacturing Deliverables: Gerber files (RS-274X / ODB++), pick-and-place/CPL files, production BOM, fabrication, and assembly documentation. ● Who I Work With: My strongest engagements are with founders and engineering teams who treat hardware development as a serious investment not a race to the cheapest PCB layout quote. ● Who are strong fit: ⁃ You are building a market-bound product and understand the real costs of component sourcing and PCB prototyping cycles ⁃ You are ready to invest the time and budget that production-quality electrical engineering actually requires ⁃ You come with defined requirements a clear concept, target specs, or reference schematic design ⁃ You are available for brief milestone reviews to keep the PCB design aligned throughout development ● Track Record: 100% Job Success · Top Rated Plus · $200K+ earned · 5,700+ hours delivered Upwork hourly and fixed-price engagements, from initial schematic design through manufacturing handoff. If your project is production-bound and you need a PCB design and embedded systems engineer who takes full ownership from schematic design through fabrication-ready deliverables invite me to your job or book a direct consultation to review PCB stack-up strategy, circuit architecture, and component selection before we begin.

I’m a PCB Design Engineer with 12+ years of experience in Altium Designer, specializing in IoT hardware, embedded systems, and power electronics. I design reliable, efficient, and manufacturable PCBs — from concept to final prototype. Over the years, I’ve worked on projects ranging from ESP32/STM32-based IoT devices to high-efficiency Medical Devices, Motor drivers, and FPV Drone boards. My focus is on performance, signal integrity, and low power loss — ensuring every design is optimized for real-world conditions. 💡 What I Offer PCB schematic capture and multilayer layout (Altium Designer) IoT and embedded boards using ESP32, STM32, and Raspberry Pi Design verification, simulation (Proteus/Multisim) Gerber, BOM, and fabrication-ready documentation 🎯 Why Work With Me ✔️ Strong background in electronics design for commercial and defense projects ✔️ Focused on clear communication and timely delivery ✔️ Deep understanding of DFM (Design for Manufacturing) and prototyping Let’s collaborate to turn your idea into a high-performance, production-ready PCB.

I am Dr. Muhammad Ayaz, a PhD in Electrical Engineering, IEEE Professional Member, and Top-Rated Plus freelancer with 10+ years of experience in RF, microwave, antenna, and PCB design. I specialize in designing high-performance antenna systems, RF/microwave circuits, and advanced PCB layouts for modern wireless and communication applications. I help clients transform concepts into manufacturable and prototype-ready hardware using advanced electromagnetic simulation, RF optimization, and high-speed PCB design techniques. ⭐ Core Expertise ✅ Antenna Design & Optimization 🔹 Microstrip patch, monopole, dipole, slot & PIFA antennas 🔹 Helical, horn, dielectric resonator (DRA) & reflector antennas 🔹 Vivaldi, Yagi-Uda, loop & fractal antennas 🔹 Single-element and antenna array designs 🔹 Linear, circular, phased & beamforming arrays 🔹 MIMO, dual-polarized & compact antennas 🔹 5G/6G, mmWave, UWB & wideband antennas 🔹 Planar, conformal & wearable antenna structures 🔹 Gain, bandwidth & impedance matching optimization 🔹 RF performance enhancement and antenna miniaturization ✅ RF & Microwave Engineering 🔹 RF front-end and microwave circuit design 🔹 Filters, couplers, power dividers & matching networks 🔹 RF system integration & optimization 🔹 Signal integrity and RF performance analysis 🔹 Microwave passive component design ✅ PCB Design & Fabrication 🔹 RF & high-speed PCB layout (1–10 layers) 🔹 Controlled impedance routing 🔹 EMI/EMC-aware PCB design 🔹 Compact and manufacturable PCB layouts 🔹 PCB fabrication support and prototype development 🔹 Altium Designer, KiCad & OrCAD PCB development ✅ Simulation & Engineering Tools 🔹 CST Microwave Studio Suite 🔹 HFSS (High Frequency Structure Simulator) 🔹 ADS (Advanced Design System) 🔹 AWR Microwave Office 🔹 Altium Designer, KiCad & OrCAD 🔹 MATLAB, LTSpice, PSpice & Multisim ✅ Antenna Testing & Validation 🔹 Fully calibrated anechoic chamber facility 🔹 Vector Network Analyzer (VNA) based RF measurements 🔹 Antenna testing and performance validation 🔹 S-parameters (S11), VSWR & radiation pattern measurements 🔹 RF tuning, debugging & optimization 🔹 Prototype bring-up and hardware verification ⭐ Why Clients Choose Me? 🔹 PhD specialist in RF, microwave, antenna & PCB systems 🔹 Strong research and industry experience 🔹 Proven success as a TOP-RATED PLUS freelancer 🔹 Real hardware prototyping and testing capabilities 🔹 Focus on performance, reliability & manufacturability 🔹 Professional communication and on-time delivery 🔹 End-to-end support from concept to prototype and testing ⭐ Project Types 🔹 Antenna design & optimization 🔹 RF/microwave circuits & systems 🔹 Antenna arrays & beamforming systems 🔹 RF PCB layout & high-speed PCB design 🔹 PCB fabrication and prototype support 🔹 Antenna measurement & RF testing 🔹 Integrated RF + PCB solutions If you need a senior engineer in RF, microwave, antenna, and PCB design who understands both theory and real-world implementation, including fabrication and testing support, let’s discuss your project. ⭐ Budget & Ordering Available for both fixed-price and hourly projects ($50/hour). Contact me today to discuss your project requirements. Best Regards, Dr. Muhammad Ayaz PhD | Senior RF, Microwave, Antenna & PCB Design Engineer

I help startups, manufacturers, and engineering teams develop reliable embedded and robotic products—from schematic design and PCB development to firmware, hardware testing, and complete system integration. I am an Embedded Systems and Robotics Engineer with 5 years of experience, 100% Upwork Job Success, 300+ completed hours, and proven long-term client relationships. My recent work includes a 6-DOF industrial robotic arm using distributed CANopen control, a compact ESP32 controller for six stepper motors, custom robotic-arm interface PCBs, and medical-device control electronics. **Services I provide:** • STM32, ESP32, and ARM Cortex-M firmware • Embedded C/C++ programming • Schematic capture and multilayer PCB design • Hardware bring-up, debugging, and testing • Stepper, servo, and BLDC motor control • CAN, CANopen, UART, SPI, I2C, and Modbus • Sensor, encoder, actuator, and display integration • Robotics and industrial automation • IoT and connected-device development • BOMs, Gerber files, manufacturing files, and documentation I have contributed to medical-device projects involving pneumatic lithotripsy systems, surgical light sources, irrigation and suction pumps, dialysis monitoring systems, and fluoroscopic imaging equipment. My focus is on practical engineering, clear communication, maintainable firmware, manufacturable PCB designs, and dependable system performance. I can support complete product development or a specific stage such as firmware, PCB design, debugging, or system integration.

I have designed 30+ real-world components used in defence systems, DC fans, and kitchen appliances handling everything from design and simulation to fabrication and testing myself, so you get complete, working hardware solutions from one expert. I am an RF, PCB, and Embedded Systems Engineer with strong hands-on experience in building complete hardware products. I have worked on real-world RF systems including high-power amplifiers, transmitter-receiver designs, RF filters, and antenna systems for communication and defence-related applications. I specialize in RF design, antenna design and testing, wireless communication, and high-quality PCB design including multilayer boards using Altium Designer and KiCad. I also work on circuit design, analog electronics, RF filters and amplifiers, and embedded systems using STM32, ESP32, and Arduino. I have successfully delivered reliable, tested, and production-ready designs that perform well in real-world conditions. For large and challenging projects, I collaborate with a trusted team of highly skilled professionals, so we can deliver a complete, fully working product including hardware, software, and mechanical design all in one place. ✅ RF & Microwave Circuit Design ✅ RF System Design (Transmitter & Receiver) ✅ RF Front-End Design ✅ RF Power Amplifier Design (Low, Medium & High Power) ✅ LNA (Low Noise Amplifier) Design ✅ RF Filters Design (Bandpass, Low-pass, High-pass) ✅ Impedance Matching & RF Tuning ✅ Antenna Design (Patch, Monopole, Dipole, Custom) ✅ Antenna Simulation & Optimization ✅ Antenna Testing & Performance Measurement ✅ Wireless Communication System Design ✅ RF Signal Chain Development ✅ Frequency Planning & Spectrum Analysis ✅ PCB Design (Single Layer, Double Layer, Multilayer) ✅ High-Speed PCB Design ✅ RF PCB Layout & Controlled Impedance Design ✅ Schematic Design & Circuit Layout ✅ PCB Design using Altium Designer, KiCad & EasyEDA ✅ Gerber File Generation & Manufacturing Support ✅ Design for Manufacturing (DFM) & Assembly (DFA) ✅ PCB Debugging & Optimization ✅ Electronic Circuit Design ✅ Analog Circuit Design ✅ Amplifiers & Signal Conditioning Circuits ✅ Sensor Interface Circuit Design ✅ Power Electronics Circuit Design ✅ Hardware Troubleshooting & Debugging ✅ Embedded Systems Design ✅ Embedded Hardware Development ✅ Microcontroller-Based System Design ✅ Microcontroller Programming (STM32, ESP32, Arduino, AVR) ✅ Embedded C & C++ Development ✅ Firmware Development ✅ IoT Device Development (WiFi, LoRa, ESP32) ✅ Raspberry Pi-Based Projects ✅ FPGA Design & Development ✅ Verilog / VHDL Based Design ✅ Digital System Design on FPGA ✅ Simulation & Timing Analysis ✅ FPGA Prototyping & Testing ✅ Electromagnetic Simulation (HFSS, CST, ADS) ✅ Circuit Simulation (LTspice, PSPICE, MATLAB) ✅ EM & RF Co-Simulation ✅ Signal Integrity & EMI/EMC Analysis ✅ Hardware Prototyping ✅ Product Development from Concept to Prototype ✅ Functional Testing & Validation ✅ Performance Measurement & Optimization ✅ Test Results Analysis & Reporting ✅ Technical Writing (Engineering Reports & Documentation) ✅ Research Paper Writing (IEEE Format) ✅ Project Documentation & Reports ✅ RF & Electronics Content Writing ✅ Complete Product Design (Hardware + Embedded + RF + FPGA) ✅ Prototype to Production Support ✅ Real-World Testing & Field Validation ✅ Engineering Simulation & Optimization

Turning innovative ideas into reliable, production-ready electronic products. I am an Electronics & Electrical Engineer specializing in complete hardware product development for startups, technology companies, research organizations, and entrepreneurs worldwide. I transform concepts into manufacturable, high-performance electronic products by delivering end-to-end engineering solutions—from feasibility studies and system architecture to PCB design, embedded firmware, prototyping, testing, validation, and production support. With expertise spanning electronics, embedded systems, RF engineering, antenna design, FPGA development, power electronics, and simulation, I develop reliable, scalable, and cost-optimized hardware for commercial, industrial, medical, aerospace, IoT, robotics, renewable energy, and research applications. Every project is engineered with performance, reliability, signal integrity, EMC compliance, thermal optimization, and Design for Manufacturing (DFM) to ensure a smooth transition from prototype to production. Hardware Design & PCB Development • Electronic system architecture & circuit design • Analog, digital & mixed-signal electronics • Professional PCB layout (2–16+ layers) • High-speed PCB design & controlled impedance routing • RF PCB layout, antenna integration & impedance matching • Signal integrity, power integrity & thermal optimization • EMI/EMC-conscious hardware design • Design for Manufacturing (DFM), Design for Assembly (DFA) & Design for Testability (DFT) • Component selection, BOM optimization & manufacturing documentation • Hardware debugging, validation & production support Embedded Systems & Firmware • STM32, ESP32, AVR, PIC, ARM Cortex & Nordic nRF52/nRF53 • Embedded C/C++, Bare-Metal & FreeRTOS • Firmware architecture & bootloader development • Driver development & peripheral interfacing • Sensor integration & data acquisition • Industrial controllers & IoT devices • Low-power embedded systems • Hardware-software integration & debugging Communication Interfaces UART • SPI • I²C • CAN • RS-232 • RS-485 • USB • Ethernet • BLE • Wi-Fi • LoRa • NFC • MQTT • Modbus • TCP/IP RF, Antenna & Wireless Systems • RF circuit design • Antenna design & optimization • RF PCB layout • BLE, LoRa & telemetry systems • CST Studio Suite simulation • Wireless performance optimization • Impedance matching & RF measurements FPGA Development • Verilog & VHDL • Xilinx Vivado & Intel Quartus Prime • FPGA implementation, simulation & verification • Digital logic & DSP applications Power Electronics • AC-DC & DC-DC converters • Battery Management Systems (BMS) • Motor controllers • Embedded power management • Protection circuits • Renewable energy systems Engineering Software PCB Design: Altium Designer, KiCad, EasyEDA Embedded: STM32CubeIDE, Keil MDK, SEGGER Embedded Studio, nRF Connect SDK, Visual Studio Code Simulation: MATLAB/Simulink, LTspice, PSpice, Multisim, PLECS, Proteus, CST Studio Suite FPGA: Xilinx Vivado & Intel Quartus Prime Engineering Consulting & Tutoring Alongside product development, I provide professional consulting and tutoring in PCB Design, Circuit Analysis, Analog & Digital Electronics, Signals & Systems, DSP, Embedded Systems, STM32, ESP32, FPGA Design, Verilog, VHDL, Power Electronics, Control Systems, MATLAB/Simulink, and engineering project guidance for students, researchers, and engineering teams. Why Clients Work With Me ✔ End-to-end hardware product development—from concept to production ✔ Hardware, firmware, RF, antenna, FPGA, and simulation expertise in one place ✔ Production-ready designs optimized for manufacturing ✔ Clear communication and dependable project management ✔ Cost-effective engineering without compromising quality ✔ Thorough testing, documentation, and long-term technical support ✔ Reliable partner for startups, research projects, and commercial product development Whether you need a custom PCB, embedded firmware, RF or antenna solution, FPGA implementation, power electronics, MATLAB/Simulink modeling, or complete electronic product development, I am committed to delivering engineering solutions that are innovative, reliable, and ready for production. Let's build your next electronic product together.