The developer has partnered with the Nassau-Suffolk building and Construction Trades Council, and the Long Island Federation of Labor over the hiring of local workers.
Deepwater said that it expects to hire around 300 people from Long Island to work on the project through the construction phase.
While construction is not due to start until 2017, the company said it will begin employing people for the pre-construction phase as early as next year.
The developer added that it aims to work with Long Island-based contractors to develop a local supply chain.
In July 2013, the US Bureau of Ocean Energy Management (BOEM) handed Deepwater the lease to develop the project in federal waters on the outer continental shelf.
Deepwater is also developing the 30MW Block Island demonstration project. Construction of this development - also between Long Island and Rhode Island - is due to start next year.