Are you in school now? If so you could talk to your advisor and he could recommend people to talk to. If not, go to the University web pages and the department pages you're interested. Most professors have web pages discussing their research. Find a professor/project that interests you, email the professor, telling him about your interests, and asking him if he has a project suited to your skill level. If you volunteer to work for free, you'll have the freedom to choose the project that interests you most and has the best learning ROI. If you want/require compensation, naturally your pool of choices will be more limited.