We need a part-time C++ expert to maintain and add specific features to one of our 3D graphics products. Since the requirements will vary depending on how things go, and there will be lots of back-and-forth,
a fixed-price contract doesn't make sense. We don't have hard deadlines but you should be able to spare at least 10 hours per week when stuff needs to get done.
Our main requirement is that you are a C++ expert with good experience, not just with writing code, but also understanding best practices for version control, cross-platform SDK distros and large VS solution/project setup.
Pointers to projects & code you've written will help. Familiarity with 3D graphics, especially OpenGL, is a big advantage. Familiarity with mathematics is also important, and familiarity with non-linear optimization is a bonus.
Please provide some examples or explanations of your work in these areas, and your hourly rate. We can pay by cheque, Paypal, whatever.