An engineer is usually someone who has a specific degree in engineering, such as a construction engineer, which works out the design and construction of a building, but also takes into consideration the strengths and weaknesses of the materials used, load bearing capacities, etc. There are engineers for every field of endeavor. I'e., electronics engineer, broadcast engineer, structural engineer, highway engineer, etc.
A contractor is usually the company that takes the requirements and design as set forth by the engineer and creates the end result, such as a building, bridge, highway.
More than one engineer or contractor can be involved in the completion of the project, as their disciplines and specialties are varied. The engineer or contractors hired to complete the project will usually have experience in a particular field of work that involves multiple disciplines.
Both are Male
A music producer is ultimately responsible for the sound of the finished product (or perhaps more correctly, their earsare). They manage and direct the project while the audio engineers do the "hands-on" work, making changes to the mix that the producer calls for.
That will depend on the contract. Some contracts allow it, others require notification and approval of sub-contractors.
what is the difference between classical
There is no difference
nothing
principal runs a school. a contractor builds buildings.
the difference between aircraft maintenance engineer and aeronautical engineer is, aeronautical engineer dose the design work theoritically,while the aircraft engineer maintain and service the airplane
The difference between the desgineer and engineer is the math. They both do the same thing except the engineer does the math.
Power vs Signals
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a bidder is a contractor or supplier,but, .......
A residential contractor specializes in building homes which people will live in. A building contractor oversees the building of commercial property.
The main difference between a property developer and a building contractor is the developer is the person who blueprints the area and buys the land to build on. The contractor is the person who actually builds the building or subcontracts the work out.
There's no resemblance whatsoever between the general contractor and the Project Manager in job functions.
About $10/hr
The independent audio engineer would be self employed.