I'm a freelance programmer, specialising in scalable vector graphics (SVG) and interactive Javascript programs. I live in Oxfordshire, UK with my partner and our two children. You can contact me here.


I work as a content creator for Khan Academy. Most recently I worked on creating the interactive elements for their partnerships with NASA and Pixar. I have also worked as an IT consultant for a logistics firm, writing code to generate images of different package options. And I have worked on a couple of cryptocurrency projects.

See my Work page for more information.

Where to find me


My background is in molecular biology. I did an undergraduate Masters degree in Biochemistry (MBioch) at Oxford University. I also did a PhD in Pathology at Oxford University. My research was on metabolic enzymes in the flagellum a trypanosome (a parasite which cause human African trypanosomiasis). I then did a postdoc at the Marine Biological Association in Plymouth, researching calcium regulation in the flagella of the green algae, Chlamydomonas reinhardtii.


My scientific publications can be found on Pubmed here. Not all of them are open access, but you can download them here.

  1. Collingridge PW, Brown RW & Ginger ML Parasitology. 2010 Aug; 137(9):1467-75 Moonlighting enzymes in parasitic protozoa.
  2. Collingridge PW & Kelly S BMC Bioinformatics. 2012 May; 13:117 MergeAlign: improving multiple sequence alignment performance by dynamic reconstruction of consensus multiple sequence alignments.
  3. Ginger ML, Collingridge PW, Brown RW, Sproat R, Shaw MK & Gull K Protist. 2013 Jul; 164(4):528-40 Calmodulin is required for paraflagellar rod assembly and flagellum-cell body attachment in trypanosomes.
  4. Collingridge P, Brownlee C & Wheeler GL Current Biology 2013 Nov; 23(22):2311-8 Compartmentalized Calcium Signaling in Cilia Regulates Intraflagellar Transport.
  5. Brown WB, Collingridge PW, Gull K, Rigden DJ & Ginger ML PLoS One 2014 July 22 Evidence for Loss of a Partial Flagellar Glycolytic Pathway during Trypanosomatid Evolution.


I made this website using Wagtail, which is a CMS for django. All the icons on this page are from simpleicons.org.

I have an older website at www.petercollingridge.appspot.com - but most of the content has been moved here. I also made MergeAlign.com - a bioinformatics app to create consensus alignments.

One of my sisters has a site with her illustrations. Some of them are for sale on her Etsy site.