Ever since I graduated with a Bachelor of Science degree as a Computer Science major, I have been wanting to get into the field of scientific computing/computational science. I have educated myself a lot by taking online courses like Scientific Computing, Computing for Data analysis, Machine Learning, Control of Mobile Robots and Introduction to Engineering Mechanics. My work background has only been doing research in Astronomy and Robotics and Tutoring at the college level in courses like Algebra, Calculus and Statistics. What I would really like to know is how come I don't see many entry level Computational Science jobs, when I go to search for them online. Are these entry level positions at academia only or should I do research in the subject in a college/university? (I live in New York City, but all it has to offer are IT jobs, software developer and web development jobs, none which catch my interest). Any help would be appreciated.