JBR Engineering Research Limited is an engineering consultancy based in Bristol, operated by John Whittington MEng. The points and details below are a key selection of the broad product design and development services I can provide. Diverse project experience includes venture capital funded concept development, Kickstarter projects, community science and the medical engineering sector. Subject tagged links follow through to my personal blog. Please contact me if you would like to talk.

Product Development

My approach to an idea is methodical, with prototype & testing creating a smooth, iterative design path. My physical engineering skills are what enable me to do this, working with various materials including wood, plastics, metal and electronics.

Embedded Systems Design

From simple Arduino/Atmel AVR and Raspberry Pi projects to the ARM Cortex series, I can advise on, and incorporate embedded systems into a design. I can offer real-time operating system development, which can be paired with Simulink Embedded Coder, for rapid development of complex control systems.

MATLAB and Simulink

An expert in Mathwork's MATLAB and Simulink suite, I have experience using it to simulate, model, test and generate code in applications ranging from FEA to vehicle autonomy. Using Simulink, I can create complex control systems, which can be brought onto hardware using Embedded Coder.


Languages I can develop and provide support: C; C++; Python; Javascript (node.js, MongoDB); HTML/CSS. I can also provide IT support with more than 15 years of experience on Windows, Mac and Linux systems; software, networking and hardware.

Electrical Design

Mechanical design is often entwined with electronics and as such, I have chosen to specialise in the combination of the two: mechatronics. It allows me to consult on mechanical design and incorporate the electronic control that will bring the project to life.

Mechanical Engineering

With a masters in Mechanical Engineering, I have the knowledge and skillset for mechanical design with an understanding of physical systems (fluids, solids, gases).


Recent projects by JBR Engineering. Projects featured are mostly JBR Engineering products or personal projects due to largely non-disclosure work.

Nixie Pipe

Product Development

Wooden Bits

Product Development

Bristol Butt'r

Product Development

Dual Channel +/-15kV PSU

Mechanical Design & Assembly

PiJuice Console

Electrical & Software Design


Product Development

MATLAB Finite-Difference Model

MATLAB & Simulink

Auden Portable Speaker

Product Development

iPhone Dock

Product Development


John Whittington

Owner and consultant