JB&B

Join JB&B and shape the future of the built environment! Founded in1915,Jaros, Baum & Bolleshas been a pillar of engineering innovation in New York City for over a century. Specializing in mechanical, electrical, plumbing (MEP) , JB&B has contributed to some of the most iconic buildings. In October 2025 , JB&B joined forces with Trinity Consultants, a global consulting firm focused on the natural and built environments. JB&B now operates within Trinity'sBuilt Environment division , combining its deep expertise in high-performance building systems with Trinity's strengths in acoustic design,facility operations,commissioning, andtechnology strategy. This strategic merger expands JB&B's capabilities and offers employees: Access to a broader portfolio of international projects and clients Enhanced career mobility across Trinity's global network Interdisciplinary collaboration with experts in sustainability, environmental science, and...

Who We Are Jaros, Baum & Bolles (JB&B) is a MEP engineering firm headquartered in New York City with additional offices in Boston and Philadelphia. For over 100 years, JB&B has leveraged cutting-edge technologies with sound engineering practices to create building designs that have transfigured the skyline, reimagined healthcare, and brought us closer to a sustainable, low-carbon future. We foster a collaborative, high-performing culture in which our employees share the common goal of creating a progressive, inclusive, and fun work environment. JB&B values the voices and opinions of our employees. We are a team. We are a community. About the Role: The Senior Project Engineer is a technically skilled and experienced engineer with developed communication, coordination, project management and leadership skills. The Senior Project Engineer manages larger projects and is the key lead for MEPFP fieldwork, and a liaison for the MEPFP design team. The Senior Project...

Join JB&B and shape the future of the built environment! Founded in1915,Jaros, Baum & Bolleshas been a pillar of engineering innovation in New York City for over a century. Specializing in mechanical, electrical, plumbing (MEP) , JB&B has contributed to some of the most iconic buildings. In October 2025 , JB&B joined forces with Trinity Consultants , a global consulting firm focused on the natural and built environments. JB&B now operates within Trinity's Built Environment division , combining its deep expertise in high-performance building systems with Trinity's strengths in acoustic design, facility operations, commissioning, and technology strategy . This strategic merger expands JB&B's capabilities and offers employees: Access to a broader portfolio of international projects and clients Enhanced career mobility across Trinity's global network Interdisciplinary collaboration with experts in sustainability, environmental science,...

Join JB&B and shape the future of the built environment! Founded in1915,Jaros, Baum & Bolleshas been a pillar of engineering innovation in New York City for over a century. Specializing in mechanical, electrical, plumbing (MEP) , JB&B has contributed to some of the most iconic buildings. In October 2025 , JB&B joined forces with Trinity Consultants , a global consulting firm focused on the natural and built environments. JB&B now operates within Trinity's Built Environment division , combining its deep expertise in high-performance building systems with Trinity's strengths in acoustic design, facility operations, commissioning, and technology strategy . This strategic merger expands JB&B's capabilities and offers employees: Access to a broader portfolio of international projects and clients Enhanced career mobility across Trinity's global network Interdisciplinary collaboration with experts in sustainability, environmental science,...

Join JB&B and shape the future of the built environment! Founded in1915,Jaros, Baum & Bolleshas been a pillar of engineering innovation in New York City for over a century. Specializing in mechanical, electrical, plumbing (MEP) , JB&B has contributed to some of the most iconic buildings. In October 2025 , JB&B joined forces with Trinity Consultants , a global consulting firm focused on the natural and built environments. JB&B now operates within Trinity's Built Environment division , combining its deep expertise in high-performance building systems with Trinity's strengths in acoustic design, facility operations, commissioning, and technology strategy . This strategic merger expands JB&B's capabilities and offers employees: Access to a broader portfolio of international projects and clients Enhanced career mobility across Trinity's global network Interdisciplinary collaboration with experts in sustainability, environmental science,...

Join JB&B and shape the future of the built environment! Founded in1915,Jaros, Baum & Bolleshas been a pillar of engineering innovation in New York City for over a century. Specializing in mechanical, electrical, plumbing (MEP) , JB&B has contributed to some of the most iconic buildings. In October 2025 , JB&B joined forces with Trinity Consultants, a global consulting firm focused on the natural and built environments. JB&B now operates within Trinity'sBuilt Environment division , combining its deep expertise in high-performance building systems with Trinity's strengths in acoustic design,facility operations,commissioning, andtechnology strategy. This strategic merger expands JB&B's capabilities and offers employees: Access to a broader portfolio of international projects and clients Enhanced career mobility across Trinity's global network Interdisciplinary collaboration with experts in sustainability, environmental science, and...

Join JB&B and shape the future of the built environment! Founded in1915,Jaros, Baum & Bolleshas been a pillar of engineering innovation in New York City for over a century. Specializing in mechanical, electrical, plumbing (MEP) , JB&B has contributed to some of the most iconic buildings. In October 2025 , JB&B joined forces with Trinity Consultants , a global consulting firm focused on the natural and built environments. JB&B now operates within Trinity's Built Environment division , combining its deep expertise in high-performance building systems with Trinity's strengths in acoustic design, facility operations, commissioning, and technology strategy . This strategic merger expands JB&B's capabilities and offers employees: Access to a broader portfolio of international projects and clients Enhanced career mobility across Trinity's global network Interdisciplinary collaboration with experts in sustainability, environmental science,...

Join JB&B and shape the future of the built environment! Founded in1915,Jaros, Baum & Bolleshas been a pillar of engineering innovation in New York City for over a century. Specializing in mechanical, electrical, plumbing (MEP) , JB&B has contributed to some of the most iconic buildings. In October 2025 , JB&B joined forces with Trinity Consultants, a global consulting firm focused on the natural and built environments. JB&B now operates within Trinity'sBuilt Environment division , combining its deep expertise in high-performance building systems with Trinity's strengths in acoustic design,facility operations,commissioning, andtechnology strategy. This strategic merger expands JB&B's capabilities and offers employees: Access to a broader portfolio of international projects and clients Enhanced career mobility across Trinity's global network Interdisciplinary collaboration with experts in sustainability, environmental science, and...

Join JB&B and shape the future of the built environment! Founded in1915,Jaros, Baum & Bolleshas been a pillar of engineering innovation in New York City for over a century. Specializing in mechanical, electrical, plumbing (MEP) , JB&B has contributed to some of the most iconic buildings. In October 2025 , JB&B joined forces with Trinity Consultants, a global consulting firm focused on the natural and built environments. JB&B now operates within Trinity'sBuilt Environment division , combining its deep expertise in high-performance building systems with Trinity's strengths in acoustic design,facility operations,commissioning, andtechnology strategy. This strategic merger expands JB&B's capabilities and offers employees: Access to a broader portfolio of international projects and clients Enhanced career mobility across Trinity's global network Interdisciplinary collaboration with experts in sustainability, environmental science, and...

Join JB&B and shape the future of the built environment! Founded in1915,Jaros, Baum & Bolleshas been a pillar of engineering innovation in New York City for over a century. Specializing in mechanical, electrical, plumbing (MEP) , JB&B has contributed to some of the most iconic buildings. In October 2025 , JB&B joined forces with Trinity Consultants , a global consulting firm focused on the natural and built environments. JB&B now operates within Trinity's Built Environment division , combining its deep expertise in high-performance building systems with Trinity's strengths in acoustic design, facility operations, commissioning, and technology strategy . This strategic merger expands JB&B's capabilities and offers employees: Access to a broader portfolio of international projects and clients Enhanced career mobility across Trinity's global network Interdisciplinary collaboration with experts in sustainability, environmental science,...