Digital To Analoge

We are a Australian based company in development of Electronics, to run Piazo Printhead. I am looking for a engineer with experience in sending Digital Data to a DAC setup and amplified via Mosfets. Digital Data will be implemented on a Xilinx FPGA. Trapezoidal waveform needs to be written in VHDL so that circuit and Code simulation can be done in Tina software. An explanation of the VHDL code to be supplied so that code can be changed at any time in the future.