Crafting can be performed at the Molecular Printer, which can be found in many larger outposts/towns/POI's.
Manufacturing Job allow ARES operators to produce a wide variety of weapons and equipment for use in the field.
Refining Jobs are a critical part of building new gear. Any Raw Resource that is that is gathered in the field must be Refined before it's able to be used to Manufacture something. The refining of raw resources produces materials that can be used in manufacturing as well as sometimes a small amount of crystite.
Make sure you Refine your resources! - Firefall Molecular Printer
Research Jobs are important for dedicated Manufacturers. Learning new methods and techniques allows ARES Operators to build better and more advanced weaponry and equipment - critical in the fight against Chosen. In order to manufacture weapons, abilities or equipment one must first research the appropriate technology. For example, to build an Arsenal's Light Machine Gun one must first go to the research tab and weapons and then research their level appropriate LMG before they can use the recipe in the the manufacturing tab. Research for recipes is currently grouped by level and rarity. In order to research a higher level or more rare equipment one must first research the item's lower levels and rarities.