About

I'm a software developer working in London. In the daytime, I'm head of programming at Tangent Labs, a London-based digital agency; while at night, I hack on personal projects and open-source software. To an outsider (like my wife), work and play appear identical.

Hacking

I am a programming addict.

Most of work at Tangent revolves around e-commerce, using mainly Python but sometimes also PHP. To try and make my life easier, I wrote django-oscar, a domain-driven ecommerce framework for Django. My life temporarily got 34% easier until other annoyances rose up to fill the void.

I wrote and maintain commandlinefu.com.

See Github for other projects.

Maths

I have a PhD in Applied Mathematics from the University of Nottingham - you can read my thesis if you like.

There are a few papers out there based on my research:

• Sqrt(5):2 mode interactions on a square lattice
  Int. J. Bif. and Chaos 14 11 3883-3897
  D.M. Winterbottom [not available online]
• Oscillatory pattern formation with a conservation law
  Nonlinearity 18 1031-1056
  D.M. Winterbottom, P.C. Matthews, S.M. Cox
• Pattern Formation in a Model of a Vibrated Granular Layer
  SIAM J. Appl. Dyn. Syst. 7(1) 63-78
  D.M. Winterbottom, S.M. Cox, P.C. Matthews

You may also be interested in an online tutorial I put together back in the dreamy days of 2004.

Contact

You can use Twitter or Github if you're so inclined, but email is preferred.