LOS ANGELES, CA — JTM Construction Group Inc. (JTM CGI), an affiliate of JT Magen, announces four new hires in its Los Angeles, California, office: Giovanni Cangelosi, LEED AP has joined as Senior Project Manager; Richard Collinge as Project Manager; and Ratema “Bur” Ngaheu and Isai Absalom Lopez each as Superintendent.
The new hires will be responsible for leading and managing the construction of tenant improvement projects across California. They will oversee the overall planning, coordination, and execution of field operations while ensuring project efficiency and safety.
“We are excited to welcome Giovanni, Richard, Ratema, and Isai to the team,” said Jonathan Holloway, West Coast Regional Director at JTM CGI. “Each of these construction professionals brings with them a wealth of experience across multiple project sectors. Their project proficiency will be an asset to clients and play a role in supporting the company’s continued growth across Los Angeles and the greater California region.”
Cangelosi has 25 years of construction experience across several sectors, including health care, life sciences, automotive, and hospitality. Prior to JTM CGI, he spent nearly five years as a Senior Project Manager at Howard Building Corporation and led the health care division at DEB Construction. Cangelosi holds an associate’s degree from Saddleback College.
Collinge has spent more than 20 years in the construction industry and brings experience across the office, hospitality, retail, and sports sectors. Most recently, he was a Vice President at Cumming Group. Collinge holds a bachelor’s degree in business from University of Sheffield in the United Kingdom.
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Ngaheu brings more than 20 years of construction experience to JTM CGI. He most recently was a Senior Superintendent at GCX.
Lopez has more than a decade of experience in the construction industry, particularly in the financial services and hospitality sectors. He joins JTM CGI from GCX, where he was a Superintendent.

















































