Peter Windschmitt has joined national rail and transit firm Quandel Consultants as director of railroad operations. Windschmitt has worked in the rail industry for more than 15 years and brings expertise in freight operations, transportation planning and freight and passenger systems integration.

IMEG Corp. has promoted Jim Kappeler to client executive for education and government in IMEG’s St. Louis office. At the firm’s Quad Cities office in Moline, Ill., Josh Heacock has been promoted to client executive for IMEG’s health care team.

Weston Tanner has joined Oakbrook Terrace, Ill.-based Graycor Construction as director of construction technology and innovation. Tanner has 15 years of architecture and construction technology experience, including similar roles over the last seven years with the Walsh Group.

Steve Raasch has been promoted to president and CEO of Zimmerman Architectural Studios in Milwaukee. Raasch succeeds Dave Stroik, who has led the firm since being named president and CEO in 1999. With over 30 years of architectural planning, design and project management experience, Raasch has focused on projects delivered within the health care environment for over two decades.

Doug Bottorff has been promoted to vice president and office director of Shive-Hattery’s Iowa City office. Bottorff has 23 years of service with the architecture and engineering firm and has held a variety of leadership and management roles throughout his career.

John Greidanus has joined the Milwaukee office of GZA as senior power and energy consultant, where he will focus on expanding the firm’s business in the Midwest region. Greidanus brings to GZA 40 years of program and development management experience in hydroelectric, wind and other power and energy market project types.

Amanda Waeghe has joined the Green Bay, Wis., office of H.J. Martin and Son as an interior designer. She will assist customers in the selection of products that fit their space, budget and personal design style from the company’s Green Bay showroom.

Ryan Freeman has joined PayneCrest Electric Inc. in St. Louis as the electrical contractor’s president. David Payne, who has served as PayneCrest’s president for 34 years, will remain CEO of the firm. Freeman has 18 years of experience in construction management and executive leadership, mostly at McCarthy Building Cos., where he had been senior vice president.

Tim Morgan has been promoted to HNTB Corp.’s office leader position for the firm’s U.S. offices in Missouri, Kansas, Oklahoma and Iowa. A vice president, Morgan has 15 years of technical expertise and leadership experience in transportation infrastructure in the region. He served as HNTB’s Oklahoma practice leader for the past two years.