Senior Engineer, Mechanical

Join JB&B and shape the future of the built environment!

Founded in 1915, Jaros, Baum & Bolles has 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, and digital infrastructure

About the Role

We are seeking a Senior Engineer to join our dynamic Electrical team in our Boston office. This role is ideal for a professional with a proficient understanding of electrical design, project execution, and interdisciplinary coordination.

As a Senior Engineer, you will making a positive impact on the office environment by:

• Sharing technical knowledge and best practices with colleagues.

• Acting as a mentor to junior engineers, supporting their professional development.

• Actively participating in office initiatives, team‑building events, and knowledge‑sharing activities.

Key Responsibilities

• Design tenant fit‑out projects and complete specific tasks on base building/infrastructure upgrades; assemble riser diagrams, schedules, and floor plans.

• Plan and coordinate routing of major distribution, main equipment rooms, closets, shafts, and risers.

• Lead design tasks that support the overall trade system (e.g., branch circuiting, ductwork distribution, piping distribution, etc.).

• Review shop drawings, perform site visits and punch‑lists with limited supervision to verify accurate implementation.

• Understand documentation requirements and develop relevant content for each deliverable phase (e.g., SD, DD, CD, and specifications).

• Implement office procedures related to both design (e.g., archiving drawings, filing drawings and forms, etc.) and construction administration (e.g., updating shop drawing log, updating RFI log, etc.).

Minimum Qualifications

• Bachelor’s degree in electrical or mechanical engineering.

• 2+ years of experience.

• Excellent oral and written communication.

• Proficient in all design calculations and software tools (e.g., Revit, AutoCAD) applicable to the discipline.

• Knowledge of trade‑specific scope of project (e.g., proposal/add‑service), trade‑related codes (including energy, building, etc.) and required coordination with other trades.

Why Work at JB&B?

• Legacy +

Innovation: Our company blends a rich history with forward‑thinking design, including smart building systems and deep carbon reduction strategies.

• Collaborative Culture:
With over 400 professionals, our company fosters mentorship, teamwork, and continuous learning.

• Global Impact:
Now part of Trinity, our company offers opportunities to work on transformative projects across commercial, healthcare, aviation, life sciences, and data center sectors.

• Multiple office locations:
New York, Boston and Philadelphia.

What We Offer

• Hybrid workplace offering the flexibility to work both from home and the office.

• Comprehensive benefits package including 401(k) employer match and stock options.

• Paid time off (PTO), volunteer program, and employee resource groups.

• Training and professional development courses through JB&B University.

Estimated compensation range: $85,000 - $93,000 annual salary

Jaros, Baum & Bolles is an equal opportunity employer. All qualified candidates will receive consideration for employment without regard to race, ethnicity, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, marital status, military veteran status, unemployment status, or any other status protected by law.

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