Positions for post-doctoral fellows and PhD students become available at different times throughout the year. Please check here and in popular websites.
We are always interested in hearing from talented and motivated individuals looking for positions or willing to apply for post-doctoral fellowships, PhD studentships, summer internships, etc. If that is your case, you can e-mail Carlos informally to discuss your interests. Please remember that some applications have tight deadlines and require lengthy submissions, so the sooner you start planning the better.
Here are some useful links that you may want to explore in conjunction with programs offered by your own country (if non-UK):
BBSRC Fellowships http://www.bbsrc.ac.uk/funding/fellowships
MRC Fellowships http://www.mrc.ac.uk/skills-careers/Fellowships/
EPSRC Fellowships http://www.epsrc.ac.uk/skills/fellows/
Wellcome Trust Fellowships http://www.wellcome.ac.uk/Funding/Biomedical-science/Funding-schemes/Fellowships/
The Royal Society https://royalsociety.org/grants/
The Leverhulme Trust http://www.leverhulme.ac.uk/funding/grant_schemes.cfm
Human Frontier http://www.hfsp.org/
Science without Borders http://sciencewithoutborders.international.ac.uk/home