Cedar Rapids-based engineering and technical consulting business HR Green named company veteran Jason Poppen as its next CEO.Poppen will take over the role Jan. 1. Current CEO, Steven Heyer, will assume the role of principal and retire April 2019.“I’m looking forward to working with everyone at HR Green to expand our footprint, develop new businesses and to never lose sight of the great opportunity to partner with our clients to build communities and improve lives,” Poppen said in a prepared statement.Poppen, who started with the company in 2002, is president of HR Green’s Transportation Business Line and based in Houston.