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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.

I am an expert in KiCad and Eagle. I am experienced RF Electrical Engineer. The schematics and layouts are my strong points. I will update the library both schematic and layout and generate the Gerber files. Maintain design rules of PCB broads including track widths, vias, via drills, maintain clearance, pear gaps for main manufacturers. Also, I will recommend suggestions for manufacturers.

Professional solar battery system and EV charging engineer with expertise in grid-tie and off-grid solutions. Having designed 300+ DIY off-grid and grid-tie solar systems, I help clients achieve energy independence. I provide complete solar packages for permitting, with designs passing ESA inspections. My extensive experience spans residential/commercial OCPP Level 2 and DCFC EV charging, as well as off-grid systems for boats, cottages, and camper van conversions. I bring a meticulous and responsible approach to ensure high-quality results. Specialized in the following solar and battery brands: Victron Energy, Sol-Ark, Eco-Flow, Generac, Growatt, Magnun, Outback, EG4 and Lux Power inverters, Battle Born batteries, SOK, EPEver and many other solar power electronic devices (MPPT charge controllers, management and monitoring systems) . Specialized in the following EV charging brands/systems: Jointech, Zerova, Liteon, Delta, LG, Siemens, Autel, EVbox, Tritium DCFC, BTC Power, Efacec and many other OCPP-related EV charging systems.

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.

⭐⭐⭐⭐⭐ "Majdi was wonderful to work with. He went the extra mile and he is clearly an expert in the field of electromagnetics. He was fast and responsive. No regrets. You should hire him." ⭐⭐⭐⭐⭐ "Majdi was great! For a project outside my scope of expertise he was able to deliver results and answer all my questions. He knew what to do and how to do it without fuss. Importantly, he was clear about the timing of milestones and was able to meet the deadlines. It was easy working with him." With a solid background in electromagnetic simulation, extensive expertise has been acquired across various applications (+8years) including electric motors, actuators, solenoids, permanent magnet applications, wireless power transfer, power electronic components, transformers, eddy current braking, couplers, and electric field-related applications. Participated in numerous research and development projects, particularly in software development for finite element electromagnetic simulations, has been integral. Engaged in client-facing, content development, and consulting and proof of concept projects have also been undertaken, covering areas such as motors and generators, wireless charging for EV and electronic devices, and permanent magnet applications, and many more. Area of expertise and skills: - FEA electromagnetic, coupled Multiphysics analysis ( thermal, structural, system, motion), - Parametric and optimization based design, - Results and data investigation, - Post processing and results reporting, - Proof of concept, - Problem solving, - Case studies, benchmarking, validation, etc, - CAD modeling. Software: - Ansys Maxwell2D/3D, - Ansys Workbench - SOLIDWORKS - Autodesk Inventor

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