About MassDOT At MassDOT, transportation is not about roads and bridges, or trains and buses – it is about people. Our mission begins with customers - individuals, businesses, municipalities, and regional transit agencies. We support programs and projects that deliver a high return on investment. MassDOT supports the economic, quality of life, and environmental goals of the Commonwealth. Position Summary Incumbents of positions in this series prepare or review plans, designs, specifications and cost estimates for engineering projects; prepare and/or review reports, studies and analytical data; perform calculations