Chroma Technology announced that Chris Karp recently rejoined the Bellows Falls company as director of sales. In his new role, Karp will lead the sales and customer-service teams and support and execute the organizational sales strategy.

Karp is an accomplished executive with core competencies in product development, management, business development and customer relations. He previously worked at Chroma from 2002 to 2011, serving in several leadership roles including sales management and product design.

The construction management firm ReArch Company in South Burlington recently welcomed four new employees to its growing team. They are project engineers Austin Hart and Sarah LeClair, estimator Justin Palker and preconstruction manager Ben Buglovsky.

Hart brings nearly a decade of construction industry experience to the ReArch team. He spent the past five years working as a civil engineer at Mott MacDonald in Boston, where he was responsible for overseeing multiple large-scale projects.