MHI Vestas has been leasing part of the site from parent company Vestas since 2014, when the joint venture (JV) with Mitsubishi Heavy Industries was formed.
Last month, Vestas said it was moving some of its activities away from the West Medina Mills factory to make room for MHI Vestas' expansion.
MHI Vestas said along with additional personnel, it was also planning to add a second blade mould at the site.
"We are looking for people with the right attitude, a good work ethic, and who want to be part of something historic," said MHI Vestas' UK blade production director, James Luter.
"This is an ambitious ramp up. We have an exceptionally strong, in-house training programme, so you don't need any prior experience in this field," Luter added.
In November, the JV announced plans to open a painting and logistics facility for its blades near Southampton, just across the Solent strait from the Isle of Wight.
The facility in Fawley is located in a former oil-fired power plant.
MHI Vestas' 8.0-8.8MW version of the V164 turbine has been installed (or is set to be installed) at several UK, Dutch, Danish and German projects, with a combined total of 2.24GW.
Meanwhile, the V164-9.5MW model has a pipeline of roughly 3.7GW.
In September, MHI Vestas said the V164 would be available with a 10MW nameplate capacity.