Hardware that works the first time, every time — from schematic to silicon to shipping. I lead mixed-signal bring-up, EMC hardening, and design reviews for teams shipping globally.
"I don't just design circuits — I design confidence. Every pad, every via, every trace is a decision I own."
I'm Nadia Okonkwo, a Senior Electronics Engineer with 11+ years of experience across consumer electronics, industrial automation, and defence-grade systems. I graduated with First Class Honours in Electronics Engineering from University College London and went on to build hardware that has shipped to over a million users worldwide.
My work sits at the intersection of precision analog design, high-speed digital systems, and RF engineering. I hold 18 patents, have spoken at IET and IEEE conferences, and mentor junior engineers through structured technical apprenticeships.
I believe great hardware engineering is invisible — it's the product that just works, the battery that lasts, the signal that doesn't drop. That's what I build.
Multilayer PCB layout up to 20 layers. DDR5 memory routing, high-speed differential pairs, controlled impedance stackups, thermal management, HDI microvias, and DFM/DFT practices. Altium Designer and KiCad expert. Pre-layout simulation using HyperLynx for signal integrity validation before a single trace is placed.
GaN/SiC switching converters, LLC resonant topologies, battery management systems, wireless charging, and PFC circuits up to 10kW.
Antenna design, LNA/PA, frequency synthesisers, impedance matching, and regulatory compliance from 400 MHz to 77 GHz.
Xilinx and Intel FPGA development in VHDL and Verilog. Custom IP cores, DSP pipelines, high-speed serial interfaces, and timing closure.
ARM Cortex-M/A, FreeRTOS, Zephyr RTOS, BLE 5.3, LoRaWAN, Matter protocol, and ultra-low-power sensor node design with 10-year battery targets.
Led hardware design of a medical-grade wearable vital signs monitor from concept to FDA 510(k) clearance. Designed custom analog front-end for 12-lead ECG, PPG-based SpO₂ sensing, and motion artefact cancellation using 3-axis MEMS accelerometer. Power architecture achieved 96hr battery life on a 200mAh cell — 60% improvement over previous generation.
FPGA-based real-time range-Doppler processing for UAV collision avoidance radar. Xilinx KU115, custom FFT pipeline, 10 Gbps LVDS interface, -45 dBc sidelobe suppression.
Details →GaN totem-pole PFC bidirectional charger. 97.8% peak efficiency, V2G capable, IEC 61851-1 compliant. Shipped to two automotive OEMs across Europe.
Details →Ultra-low-power predictive maintenance node. 900nA sleep current, MEMS vibration and temperature sensing, LoRaWAN 1.1 Class C, conformal-coated IP67 housing.
Details →Leading physical implementation and evaluation of Arm Cortex-M85 and Cortex-A720 processor IP. Responsible for reference platform PCB design (silicon validation boards), signal integrity analysis, and hardware bring-up support for IP licensees.
Senior engineer on the digital motor drive team. Designed GaN-based inverter circuits for Dyson's 170,000 RPM brushless motor platform. Responsible for EMC pre-compliance, thermal design, and production handoff.
Avionics hardware engineer designing flight-critical electronics for fixed-wing and rotary-wing platforms. DO-254 DAL-A qualification, MIL-STD-461 EMC compliance, and redundant power supply architecture for airborne systems.
Nadia is the most technically complete hardware engineer I have ever worked with. She sees failure modes three design revisions ahead of everyone else in the room. Having her on a project is the difference between a product launch and a costly respin.
Nadia single-handedly saved a production launch by tracking down an EMC issue in 72 hours that three other engineers had spent weeks on. Her systematic approach to debugging is remarkable.
One of the clearest technical communicators I've met. Nadia can explain a DDR5 routing constraint to an executive and a board fabrication engineer with equal clarity. Incredibly rare skill.
"Available for senior hardware roles, contract design work, and interesting engineering challenges worth solving."
Open to Principal / Staff Engineer roles, hardware consulting, contract PCB design and FPGA development, and speaking engagements. Based in London — open to hybrid and international remote.