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7 years at Intel as an Electronics Design Engineer, now independent — every Upwork project rated 5.0. Tier-1 semiconductor companies bring me in for overflow PCB layout; for startups, I'm the expert they can't hire full-time. I'm the engineer to call when a board is too complex, too fast, or too power-hungry to get wrong on the first spin — or when you need measurements you can actually trust. Not the cheapest bid; the one who gets it right. To date, each board I've designed has come up working the first time. "Within minutes it was obvious he understood the problem at a level I hadn't encountered before — he was already asking questions our own team hadn't thought to ask. They found several issues that would have been a nightmare to deal with after the fact ... the board went to manufacturer on time, and I actually felt good about it. What I appreciated most was that Ethan just owned it — the same attention to detail that caught those issues carried through the entire engagement." — Daniel L., Founder, VC-backed hardware startup · February 2026 Need one engineer to own your whole board, concept to debugged hardware? Or extra senior hands on an overflow layout? Either way, you get the same silicon-grade rigor. Through my firm, EGS Engineering, I cover the full range of electronics and PCB design — a broad base of everyday board work, with deep specialization in two areas: ▸ HIGH-COMPLEXITY COMPUTE PLATFORMS — high-speed, high-power, high-density boards for datacenter and AI hardware (CPUs, ASICs, SoCs, FPGAs), power delivery into the hundreds of amps, and silicon validation. ▸ PRECISION MEASUREMENT & TELEMETRY — trustworthy measurement chains from nanovolts to volts, modeled, calibrated, and lab-validated. ──────────────────────────────────── SPECIALTY 1 — HIGH-COMPLEXITY COMPUTE PLATFORMS The hardest class of digital hardware: high-speed, high-power, high-layer-count, high-density boards with thousands of components. • Full-board ownership around CPUs, ASICs, SoCs, FPGAs, and MCUs — architecture, schematic, layout, and bring-up • High-speed interfaces under real signal-integrity constraints: PCIe Gen4, DDR3L, LPDDR5, DRAM, ONFI/NAND, eMMC/SD, USB, HDMI, I2C, SPI, I3C, and custom buses • Up to 24-layer stackups owned end to end — signal integrity, power integrity, and DFM/DFA locked before release, so you don't burn a fab cycle and weeks of schedule on a respin. • Power Electronics — multiphase VRMs up to 12 phases and 360 A, and the board/package PDN around them, kept within spec at hundreds of amps: model extraction, PDN/PI simulation, regulator tuning, and validation against target-impedance and transient budgets. • SSD validation platforms exposing the controller, NAND/Optane media, rails, and PCIe — custom sockets, breakout/pathfinding, instrumentation, bring-up, debug, and firmware support. ──────────────────────────────────── SPECIALTY 2 — PRECISION MEASUREMENT & TELEMETRY Measurement you can stake a design decision on. I don't just drop in an ADC and hope for the best. I architect the entire measurement chain, model it, extract and ingest models, and design the calibration and validation so the numbers on the screen actually mean something. • Architected and led teams to build TWO mixed-signal measurement platforms (precision analog front ends + FPGAs) delivering accurate power and temperature telemetry for storage and memory devices • Front ends spanning nanovolts to volts and milliamps to hundreds of amps — architected, modeled, and lab-correlated so the reading is one you can defend in a design review, not one you have to take on faith. • Precision AFEs (INA / op-amp), ADCs, voltage references; temperature sensing via thermistors, RTDs, and BJTs; TEC control • Modeling and validation: SPICE, MATLAB/Simulink, Python — model extraction, lab correlation, Bode, load-step, calibration ──────────────────────────────────── Start small if you want to: send me your specs or invite me to your job and I'll give you an honest read on scope, risk, and whether I'm the right fit — that first conversation is on me. Need a deeper answer before you commit? I also offer paid scoping consultations — a written risk and architecture assessment you can act on. Either way, you'll know exactly where you stand before any real work begins.

✅ TOP RATED PLUS FREELANCER with over 15 years of professional experience in RF modeling, antenna design, and product development. I specialize in the design, development, and testing of antennas and RF circuits — taking ideas from concept to fully functional products. I have consistently delivered high-quality RF and antenna design services for a wide range of commercial applications. I hold a Master’s degree in Electrical Engineering from the University of Alberta, Canada, and a Telecommunications Engineering degree from UPC Barcelona, Spain. I am highly proficient in industry-standard design and simulation tools, including HFSS, CST, ADS, Altium Designer, MATLAB, and MS Office. Core expertise: ✓ Antenna design (Single element, Array, MIMO) ✓ RF layout and PCB design ✓ RF circuit and matching network design ✓ Amplifiers and filters ✓ Power dividers and feed networks Additionally, I am experienced in regulatory certification processes, including FCC, RED, and other global compliance standards. In recent years, I’ve worked extensively on industry projects involving the design, prototyping, and testing of RF components, PCBs, communication circuits, and antennas. I take great pride in delivering designs that meet both performance and manufacturability goals.

I help companies turn ideas and electronics designs into fully working and reliable devices. I am a Hardware and Firmware Engineer with 10+ years of experience developing real products, with hardware designed for 70+ successful projects, many of which are currently on the market. Unlike many freelancers who stop at schematic and PCB design, I support projects through board bring-up, firmware integration, and system debugging in a hardware lab, ensuring the device actually works and meets the expected specifications. I also work directly with PCB manufacturers and assembly partners, helping clients avoid production issues and ensuring designs move smoothly from prototype to manufacturing. My approach focuses on building functional systems, validating them through testing, and identifying issues early before they become expensive problems in production. Two client Products I Have Developed: ✅ Smart home devices ✅ Corrosion monitoring sensors ✅ Drone and boat controllers ✅ Gimbal control systems ✅ BLDC motor controller for medical beds ✅ Muscle stimulators ✅ Medical scales ✅ Smart irrigation and weather monitoring systems ✅ Smart camera systems What I Deliver: ✅ Hardware architecture and PCB design ✅ Embedded firmware development ✅ Functional PCB prototypes ready for testing ✅ Board bring-up and hardware validation ✅ Hardware debugging and troubleshooting ✅ Reliability design reviews (ESD protection, thermal stability, power integrity, signal integrity, EMC, UL, CE) Typical Projects I Help With: ✅ Bringing up new PCB prototypes ✅ Debugging boards that are not working or unstable ✅ Hardware and firmware integration ✅ Reviewing schematics and PCB layouts before manufacturing ✅ Reliability audits to improve product lifetime ✅ Fixing power stability, ESD protection, and thermal issues During my career, I have used various technologies and components. Below are some of them: ⭐RF modules: LORA, WIFI, BLE, GPS, GSM, LTE, ZIGBEE, NRF52840, ESP32, SARA-R510, CC2530, CC2538, SIM9001, SIM800, Quectel, Arduino_IOT... ⭐Microcontrollers/Microprocessors: STM32 ( F and L family), ATAMEGA, ESP32, MSP430, MSP432, ATSAM, NFR52840, PIC32, PIC24, NXP, ARDUINO, IMX8... ⭐ Sensors: Temperature, humidity, O2 sensor, PH sensor, Light sensor, motion sensor, water leakage sensor, Nitrate sensor, current sensors, Voltage sensor, distance sensors, corrosion sensor, Scale sensors, accelerometers, Magnetometers, Rain sensor, Air quality sensors... If you are looking for someone who can design, bring up, and debug your hardware until it works as expected, please send me a message, and we can discuss your project.

I'm an Embedded and Hardware Engineer with over 10 years of experience, specializing in taking projects from scratch to fully functional prototype PCB development. I handle all aspects, including circuit design, coding, component selection, PCB layout, and prototyping. Skills: Embedded Systems: ESP32, STM32, Microchip, NXP PCB Design: Altium, Eagle, Proteus Circuit Simulator Programming: Python, C, MySQL, C++ Circuit Design: IoT Devices IoT Network Routers Buck-Boost Converters Microcontrollers DC-DC Converters Protection Circuits Battery Chargers Others Communication Protocols: RS232, RS485, I2C, SPI Wireless Technologies: XBee, ESP32 Linux Hardware: Raspberry Pi, GL-iNet, Hi-Link Linux OS: OpenWrt, Ubuntu Languages: Portuguese, English, French Expertise: Electronics PCB Troubleshooting

With more than 15 years of experience, I work with start-ups and SMEs to design, prototype and manufacture consumer products. I strive for close collaboration with clients and building personal relationships that last for years. I am the founder of Waterloo Technical Inc., a product development firm started in 2012. I specialize in industrial design; mechanical and electrical systems; firmware programming; and manufacturing. I work across these disciplines to transform great ideas into disruptive products that contribute to business growth for my clients.

Do you need help with your next hardware project ? Here is what I can do for you: *Hardware & PCB design: -From simple MCU boards with sensors and actuators to complex circuits containing RF blocks, CPUs, SoCs, FPGAs, PMICs and DDRx memory. -High-speed digital design and routing (Ethernet, HDMI, USB, PCIe, LVDS, SATA, MIPI, CAN). -Power electronics: battery management systems and BLDC drivers. -Signal integrity, power integrity, DFM, EMC and thermal considerations. *What you can expect -Clear and consistent communication. -Professional documentation and organized schematics. -Fast, reliable turnaround. -Support from idea - block diagram - schematics - PCB layout - Fabrication My hourly rate is flexible, it depends on your project's complexity and the level of support required. If this sounds good to you, feel free to send me a message so we can discuss more details. I am looking forward to working with you. Kamal