Vcs, shell scripting, Static Timing Analysis, Python, Tcl Scripting, Ml, Lsf, Object Oriented Programming, Linux, Perl, Virtuoso-L, Xcelium, Cadence custom IC Virtuoso platform, Quantus, parasitic extraction tools, CAD simulation, StarRC, Synopsys custom compiler, Primesim, EM IR STA, Finesim, analog circuit simulation flows, Virtuoso-XL, Ai, XA, Cadence language, circuit simulation debugging, Spectre