OpenModelica and Simulink Project

I need someone that has expertise in OpenModelica and Simulink. You also need to have experience in the following sibjects: Models and the model concept. Differential equations, difference equations. Description of statistical dynamical properties. Physically based equations for model building: energy balance, mass flow balance, Newtons laws of movement, etc. General principles for model building. Bond graphs. Model reduction. Differential algebraic equations. Identification of dynamic systems: methods to build models based om measurement data from processes. Blackbox models. Parametric estimation in linear dynamic models. System identification as model building tool. Model validation. Simulation: numeric accuracy and stability. The simulation language Simulink