We know because we do. We do because we can.
I'm a 'full-stack' Python developer; both a user and an author of FLOSS software. Of particular interest to me are games and financial applications. You can find my work on PyPI, Github, Bitbucket and Assembla. Look for the name tundish or see the Download page for links.
I supply electronics design and software development services. Technologies include Python, C++, C and VHDL. Projects are delivered via a test-driven methodology and validated by a Chartered Engineer. Visit Services for more details of my professional capabilities.