Build the Future. Shape Your Career.
The buildings we design will stand for generations. So will the careers we help build. At JB&B, you'll find more than challenging projects. You'll find mentors who invest in your growth, colleagues who inspire your best work, and opportunities to make an impact from day one.
We invite you to be part of what's next.
At JB&B, you'll join a team of some of the industry's most accomplished engineers. Professionals who drive innovation, share knowledge openly, and are committed to making sure everyone succeeds.
Because the greatest achievements—and careers—are built together.
Fostering Our Community
Our vision of creating spaces where everyone can thrive informs our work and our commitment to people, inside and outside the firm. At JB&B, a better world starts here, and continues with you.
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Your Career Doesn't Have to Fit Inside a Box
One of the things that makes JB&B unique is our commitment to flexibility and cross-disciplinary growth. This is not a siloed organization. Engineers and consultants regularly gain exposure to different building types, industries, and markets. Someone focused on higher education today may have opportunities to contribute to life sciences, commercial real estate, mission critical facilities, or data centers tomorrow.
The result? Broader experience. Clearer growth pathways. More interesting careers.
A Seller-Doer Culture
Our leaders don't simply win projects. They help deliver them.
JB&B operates with a true seller-doer model, creating an entrepreneurial environment where the people building client relationships are also deeply involved in the work itself. This fosters stronger connections, better collaboration, and an ownership mindset throughout the firm. At every career stage, employees are encouraged to bring ideas, relationships, and opportunities to the table.
A Firm Built on Firsts
From engineering the first air-conditioned building for Tiffany & Co. to advancing electrification, sustainability, and healthy building design, innovation has always been part of who we are. As a founding member of Urban Green Council and a recognized leader in high-performance buildings and indoor air quality, we don't just follow the industry. We help shape it.
The people who join JB&B help shape it, too.
A New Chapter: Yours and Ours
As we move forward together as part of Trinity, we’re excited to welcome talented MEP engineers into this next chapter. This strategic merger gives JB&B the ability to extend our impact beyond our Boston, New York City, and Philadelphia offices—supporting a broader national and global footprint and creating new avenues for career mobility, collaboration, and growth.
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Why JB&B?
Our partnership with Trinity reinforces JB&B’s legacy of engineering excellence while amplifying what makes us unique—our people, culture, and impact. Together, we’re creating new pathways for interdisciplinary work, technical leadership, and long-term growth.
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Legacy & Innovation
From Hudson Yards and The Shed to 270 Park Avenue, we blend a legacy of experience with cutting-edge design.
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Collaborative Community
Over 450 professionals dedicated to mentorship, learning, and professional advancement.
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Global Impact
Work across commercial, healthcare, aviation, life sciences, data centers, and more.
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Multiple Office Locations
Boston, New York, and Philadelphia—with expanded opportunities across additional U.S. locations through the Trinity network.
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JB&B University
Engineering never stands still, and neither do we. At JB&B, learning is an essential part of how we innovate, solve complex challenges, and continue raising the standard for our industry.
That's why we created JB&B University, our comprehensive learning and development program designed to support continuous growth at every stage of a career.
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