I have experiences in the following fields.
Video editing: FFmpeg, AviSynth, VapourSynth;
scripting and complex filters in FFmpeg/Avisynth pairing, advanced video denoise methods (e.g.: Non-Local Means, BM3D), operations on video files, including intro creation (primarily in Blender), logo and subtitle overlays, zoom and pan by custom scripting, video stabilization, working with older VHS/MPEG2 sources, high quality deinterlacing, colorspace transformations, etc. (preferred output container formats: mp4, mkv, mov)
Preferred encoding type is H.264 with x264, though do have experiences with ProRes, H.265/x265, DivX/Xvid, MPEG2, MotionPNG, VP9, and the most recent AV1 encoder, as well as with NVEnc.
Audio editing: noise reduction and volume level normalization, working with text to speech engines, minor audio processing / correction works.
3D modelling and animation rendering: Blender / Cycles (mainly with 2.79b): examples: larger scale CPU and GPU rendering, photorealistic shaders, using HDRI environmental textures, creating and rendering animations like 3d logos, fine rotation/translation of objects & camera motion; some example works are under: "Recently completed 3D modells".
Image editing: Gimp, ImageMagick.
It also includes: high quality upscale (e.g. Spline64) and superresolution upscale methods (e.g. Waifu2x and AI based Super-Resolution image upscale methods with custom training/test sets of images (EDSR)).
Programming: including numerical modelling & optimization tasks.
(e.g.: MC simulations, optimizations, some example works are under: "Completed another programming works").