The topic where I work is mainly the heating of plasmas (RF and NBI). The tools are the Fokker-Planck code, ray-tracing, transport code, etc. The work language is Fortran-90.
ITER is the research project without any positive power output for external users. The MIT projects you mentioned are also the research projects. Even more: SPARC is the moderate size tokamak with practically the same physical background as JET, JT-60, D-IIID and ASDEX-U. The difference is only...