I work writing models and simulations for various types of physical systems. Mainly using Fortran for the computational work, and JavaScript (along with HTML and CSS) for user interfaces and scripting. I also use a smattering of C++, Python, and the operating system scripting languages.
I have an interest in ode solvers, filtering, minimization routines, boundary value problems, and other numerical methods in the interest of simulation and answering scientific computing problems.
Fortran is a vastly underrated language, and just needs a few pieces of infrastructure to be considered fully modernized