MACOM Technology Solutions Holdings IncPrincipal Modeling Engineer MACOM Technology Solutions Holdings IncPrincipal Modeling EngineerLowell, MAThe individual will be responsible for developing Process Design Kits (PDK) and device models to assist product design across the breadth of MACOMs product portfolio - GaAs, GaN, and Si based semiconductor ICs and modules. Device test support where needed and software development to automate electrical test for device characterization and model extraction.