OOC

[GM Marvel]

Timeworn Technology

Equipment that has been damaged or degraded over time works less consistently and is worth less money than new technological items. Such equipment is called “timeworn.”

Only technological items that consume charges (including nanite canisters) or are pharmaceutical items can be affected by these timeworn rules, though any technological item can still become broken or nonfunctional just as any other item.

Timeworn Technology Glitches 

So this feat impacts equipment like laser guns (called Inferno Pistols), Neraplast Armor, etc.

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Numerian Archaeologist:  You gain Androffan as an additional language.  You also gain 'advantage' when dealing with Timeworn tech.

So I don't think you need Technologist feat to use these feats.

As for Craft(Mechanical) you don't need the Technologist feat but it would help if you wanted to craft anything more than simple technology.

As for who has it, I know Cin has a Trait called Local Ties (engineering):

Local Ties
You have ties to a prominent local. He may have been your tutor, or a friend or business associate of your family. He may even have been your adoptive father, in which case you likely have a bond of friendship or rivalry with his adopted daughter. You have a keen insight into how technology works.

Benefit(s) Choose Disable Device or Knowledge (engineering). You gain a +1 trait bonus on checks with this skill, and it is a class skill for you. In addition, you are treated as if you possessed the Technologist feat for the purposes of resolving checks associated with that skill. If you gain the Technologist feat, your trait bonus for the selected skill increases to +3.

Technologist Feat:
You are familiar with the basic mechanics of technology.

Benefit: You are considered to be trained in any skill used against a technology-based subject. If the skill in question requires training to use even against non-technological subjects, you must still have ranks in that skill in order to gain the benefit of Technologist.

Normal: You treat all skill checks made against technology as if they were untrained skill checks. This may mean that you cannot attempt certain skill checks, even if you possess ranks in the skill in question.

So it appears you would need Technologist Feat (not Local Ties) if you want to pair it with your Craft(mechanical) because Local Ties only works with Disable device and Knowledge: Engineering.