National Association of County Engineers — Hiene Junge, Pennington County, S.D., highway superintendent, has been elected president.
DayStar Technologies — Stephen DeLuca has joined the Halfmoon, N.Y.-based company as chief operating officer. Previously, he was vice president of worldwide sales for East Syracuse, N.Y.-based Inficon.
MWH — Shirley Ross, manager for the Broomfield, Colo.-based company’s Government Relations Group, has been named vice president.
Greenhorne & O’Mara — Frederick Wagner, regional vice president for Mid-Atlantic operations, has been named senior vice president of Mid-Atlantic Transportation for the Laurel, Md.-based company.
Clarity Visual Systems — Fred Hall has joined the Wilsonville, Ore.-based company as vice president of finance. Previously, he was senior vice president of human resources for Milpitas, Calif.-based Credence Systems.