LEEDS – Sebago Technics Inc., a multi-discipline, land development engineering firm with offices in Westbrook and Lewiston, announces the promotion of Jan B.S. Wiegman, P.E., to site-civil team leader.

Wiegman, of Leeds, will oversee the company’s Lewiston office and team, including client service and development, project management and personnel. He has been with Sebago Technics since 2004 as a senior project manager, and has worked on large- and small-scale retail developments, subdivisions, and industrial/commercial developments.