Brad Roberts joined GZA’s board of directors. Roberts, who is based in the firm’s Norwood, Mass., headquarters, has experience that includes environmental and geotechnical engineering and remediation efforts on projects throughout New England. He presently manages GZA’s offices and engineers. Roberts specializes in geotechnical engineering, non-destructive foundation testing (PDA, CSL, TIP and static testing) and geotechnical instrumentation.

Colliers Project Leaders has hired Joseph Naughton as managing director based in the firm’s Boston office. Naughton will focus on growing the company’s footprint in the region served by the Boston and Agawam, Mass., offices. Naughton’s expertise is in project and construction management, architecture and urban and regional planning. His projects for major construction and project management firms have included high-rise buildings, urban renewal, mixed-use developments, residential and commercial buildings, educational and health care facilities, hotels, laboratories and medical research facilities, community centers, parking garages and renewable energy projects.

Brenda Enos, a Burns & McDonnell project manager in the firm’s aviation group, was elected to the Airports Council International World Environmental Committee Steering Group. In this role, Enos, who is based in Boston, helps lead discussions and shape policies on environmental impacts and sustainability issues for the global trade representative of the world’s airports. Enos has extensive experience in managing environmental permitting, environmental compliance and environmental management systems. Prior to joining Burns & McDonnell in 2017, Enos worked for Massachusetts Port Authority. At Massport, she was assistant director of environmental management which included developing, launching and implementing Massport’s resiliency program. Additionally, she initiated the development of Massport’s Disaster Infrastructure Resiliency Planning Study, one of the first of its kind in the aviation industry.

Suffolk has hired Andrew Quirk as chief operating officer for health care and science and technology. Quirk will oversee the planning, design and construction of energy-efficient facilities for Suffolk’s clients in those sectors nationwide. Most recently, Quirk served as senior vice president and national director of Skanska’s Centers of Excellence. In that role he oversaw Skanska’s health care construction business in the U.S.  He also served as an architect on staff at Memorial Sloan-Kettering Cancer Center and as an architect with RTKL, where he was involved in programming, design, management and construction of notable health care and medical research laboratories, including at the National Institutes of Health.

Hancock Associates, a Massachusetts-based land surveying, civil engineering and wetland science services firm, has hired Rene Gagnon in the firm’s civil engineering department as a senior project manager. Based out of Hancock’s Marlborough, Mass., office, Gagnon has worked as a project manager and civil engineer at several engineering firms, including most recently as a senior engineer at BL Cos. His areas of expertise include land development planning and design, erosion and sedimentation control, construction administration and inspections in all aspects of commercial and residential planning and construction.