George Waller - Senior Embedded Software & Systems Engineer

georgewaller@gswdh.co.uk
+44 7753 326 460
Peterborough, UK
github.com/gswdh

Summary

Senior embedded systems engineer with 10+ years of experience in RTOS, baremetal and Linux based systems, C development, and electronics design across aerospace, medical, and industrial sectors. Founder of Soke Engineering, where I took a commercial film scanner from concept to shipping product as sole engineer across electronics, mechanics, firmware, and host software. Available for freelance embedded work alongside Soke.

Core Skills

Embedded C (10+ years) - Linux user space, FreeRTOS, RTEMS, NASA cFS
Python (9 years) - Automation, scripting, backend deployment
Rust - Desktop applications (egui), USB drivers, OpenCV image pipelines, ML inference deployment (ONNX, OpenVINO, CoreML)
Electronics Design - Multilayer PCBs and flex circuits, image sensor carriers, high speed DDR and USB 3, power and protection, LED drive, analogue sensing
Verilog/SystemVerilog - Fluent in digital design and implementation
Toolchains & Testing - Make, CMake, GTest, Ceedling, CI/CD pipelines
Communication Protocols - USB 3 SuperSpeed (Cypress CX3/FX3, GPIF II), MIPI CSI-2, Bluetooth Low Energy (BLE), UART, I2C, SPI, CAN, Ethernet, RS-485, Modbus RTU, SpaceWire (SpW), GSM
Architecture & Concepts - Publish/subscribe messaging, state machines, interrupt- and DMA-driven design, bootloaders and OTA update, power-fail-safe storage
Open Source - cpubsub, a lightweight cFS-inspired pub/sub messaging library in C
QA & Certification - MISRA, ISO 13485, ISO 9001, safety-critical systems, CE/FCC/UKCA EMC compliance
Product & Business - Design for manufacture, supplier management, contracts, e-commerce (Stripe, Cloudflare Workers), running a limited company

Professional Experience

Soke Engineering Ltd - Founder & Director

Oct 2025 - Present

Founded a UK hardware company and took Knokke, a 35 mm film scanner (4k dpi, 48-bit colour, a roll in under three minutes), from concept to a shipping product as sole engineer.

Electronics: five boards in Eagle, including a 6-layer via-in-pad main board around a Cypress CX3 USB 3 controller (QSPI flash, USB-C SuperSpeed mux, eFuse-protected power, TMC2209 stepper driver, I2C ADC), a 6-layer AR0822 image sensor carrier with MIPI CSI-2 over FFC, an aluminium-core RGB+IR backlight, and two 2-layer polyimide flex looms
Wrote fabrication briefs for every PCB and FPC and a Python toolchain generating Gerbers, BOMs, and pick-and-place from the CAD source; specified and sourced the certified 18 V power adaptor
Mechanical: CNC-machined 6061-T6 anodised enclosure and stepper film transport, delivered as STEP models, toleranced drawings (±0.05 mm on critical fits) and machining briefs
Firmware in C on the CX3 (ThreadX): GPIF II capture of MIPI CSI-2, multi-channel DMA to a tagged USB 3 bulk stream, eHDR sensor bring-up over I2C, an interrupt-driven trichrome frame-timing state machine synchronising LEDs and transport to sensor readout, field update over the USB cable; MISRA C:2012, cppcheck, hardware integration tests
Host software in Rust (egui, ~35k lines) for Windows, macOS, and Linux: nusb driver, OpenCV pipeline (decompanding, flat-field, rotation and distortion correction, strip stitching, frame detection), a from-scratch streaming BigTIFF pyramid writer, and a non-destructive colour pipeline in a GLSL shader
ML dust and scratch removal with a U-Net in ONNX, deployed through bundled OpenVINO and GPU-resident CoreML; signed and notarised multi-platform releases with in-app update, 13+ public releases
CE/FCC/UKCA compliance with an accredited EMC lab, technical file and manuals; production inventory, supplier contracts, and an export distribution agreement
Runs the company: VAT, funding, accounts, and an e-commerce backend on Cloudflare Workers with Stripe and Sendcloud; Knokke 120 medium-format scanner in development

Osprey Measurement Systems Ltd - Senior Embedded Systems Engineer (Freelance)

Jan 2026 - Oct 2026

Sole firmware engineer on a unified baremetal STM32L4 platform powering Osprey's geotechnical sensor range (tilt strings, settlement profilers, piezometers) - 8 build targets from one codebase
Designed a dual-slot bootloader with firmware-over-RS485 field updates and power-fail-safe, triple-redundant settings storage
Implemented multi-protocol RS-485 comms (Modbus RTU, ASCII, legacy logger emulation) for daisy-chained strings of up to 200 sensor nodes
Built Python register/command code generation and hardware-in-the-loop CI: pytest suites flashing real hardware via remote J-Link on self-hosted runners, MISRA C static analysis

Reflex Aerospace - Senior Embedded Systems Engineer

Feb 2024 - Oct 2025

Developed flight-ready Linux software for Zynq SoC deployed on defense satellites
Implemented telemetry pipelining and global timekeeping with NASA cFS
Designed integration tests, automation systems, and release pipelines
Focus: Power control, SpaceWire (SpW) communications, custom Linux tooling, embedded systems for aerospace

Aergo Health Ltd - Engineering Freelancer

2021 - Feb 2024

Overhauled a BLE-based medical product from unstable prototype to production-ready device
Consolidated MCU architecture, improved safety systems, achieved EMC certification
ESP32 + FreeRTOS, C, esp-idf, Python automation for production testing

Truphone - Backend Engineer (Contract)

Jan 2023 - Aug 2023

Backend performance optimization: 4× throughput improvement on Python/Django stack
Technologies: Python, Django, MySQL, Celery, RabbitMQ, Docker

Osprey Measurement Systems Ltd - Systems Architect

2018 - 2021

Designed and deployed IoT sensors for London Underground/National Rail safety systems
Delivered ultra-low-noise, low-drift, long-battery-life devices
Full lifecycle responsibility: concept to production
Extensive use of C, Python, embedded Linux tools

Education

BEng Electrical and Electronic Engineering, UCL, 2017

References

Available on request

Notes

UK citizenship and the right to work in the UK and Portugal
Native English speaker, currently based in Peterborough, UK