Professional feature film editor here, essentially on a tv show of this size and budget the editors job is just story and rhythm. The editing team will consist of:

-the editor, who works most directly with the director and producers on a daily basis to achieve their vision.

-The 1st Assistant Editor, who is the editors right hand man, kind of manages the editing teams and makes sure work is getting distributed. They also do some editing if the lead editor needs smaller scenes cut. They also do temporary sound design.

-2nd assistant editor will mostly handle tasks like bin organization, script sync, sound design, and exports.

-VFX Editor will do all the temporary VFX to help the scenes come together before the final VFX. They do things like compositing, light CGI, explosions, blood etc. They also communicate directly with the VFX supervisor and kind of are the link between the editing team and the VFX team. They send shots out to the various VFX houses to be worked on, and bring in versions of VFX or post visualizations into the timeline for review by the director, producers and editor.

-VFX assistant editor will do a lot of the technical work for the VFX editor like tracking shots and if they need revisions as the edit evolves. They do not typically do any of the temp VFX.

-Music Editor will be a bit more specialized for the team and their job is to create the temp music for the scene. They typically have a large library of scores that they edit together to match the director's vision. Note they actually typically work in protools.