Senior CFD Engineer: Building Science & Indoor Comfort

Jaros, Baum & Bolles (JB&B); New York (NY); Hybrid; USD 110,000 - 140,000; Full time

Benefits offered by this job

401k employer match

Stock options

Paid time off

Volunteer program

Job summary

JB&B’s CFD practice seeks a dedicated CFD Specialist to advance building-scale airflow, contaminant dispersion, and thermal comfort across high-profile projects. You will embed with HVAC designers and clients to translate complex simulations into actionable guidance.

You will develop rigorous models, evaluate indoor/outdoor air flows, and contribute to proposals and thought leadership that elevates JB&B's reputation in building performance simulation.

Qualifications

• B.S. or M.S. in Mechanical Engineering, Aerospace Engineering, Civil/Environmental Engineering, or a closely related field. Advanced degree preferred.
• Professional licensure or certifications are not required; PE/EIT or relevant building science credentials are a plus.
• 4+ years of relevant experience in CFD modeling, building simulation, or computational fluid dynamics applied to HVAC or built environment applications
• Deep working knowledge of numerical methods underlying CFD — turbulence modeling, mesh sensitivity, boundary conditions, solver selection
• Hands-on experience with CFD platforms. Familiarity with SimScale and/or Flovent is a plus.
• Strong understanding of HVAC fundamentals — not just the software, but the underlying physics of heat transfer, airflow, and psychrometrics
• Experience with at least some of: hospital/healthcare design, smoke control, contaminant transport, outdoor airflow analysis, or thermal comfort assessment

Responsibilities

• Modeling and analyzing CFD models to support HVAC design decisions across a wide range of building types
• Evaluate thermal comfort conditions for occupants; account for airflow patterns, surface temperatures, radiant effects, solar gain
• Model outdoor airflow dynamics: exhaust re-entrainment, intake/discharge, wind effects at openings
• Simulate particulate and contaminant dispersion in occupied spaces including critical environments (ORs, isolation rooms, labs)
• Analyze thermal microclimate effects from heat rejection sources (heat pumps, generators, cooling towers)
• Collaborate with HVAC design engineers early in the design process to understand real problems
• Help engineers and clients ask better questions; translate CFD insight into actionable guidance
• Serve as an internal technical resource and thought partner for the engineering team
• Produce clear simulation results with actionable recommendations
• Develop presentation materials — visualizations, reports, executive summaries
• Contribute to proposals, technical papers, and thought leadership content that elevates JB&B's reputation

Skills

CFD modeling

HVAC fundamentals

Building simulation

Communication

Education

B.S./M.S. in Mechanical/Aerospace/Civil/Environmental Engineering

Tools

SimScale

Flovent

Job description

JB&B’s CFD practice seeks a dedicated CFD Specialist to advance building-scale airflow, contaminant dispersion, and thermal comfort across high-profile projects. You will embed with HVAC designers and clients to translate complex simulations into actionable guidance.

You will develop rigorous models, evaluate indoor/outdoor air flows, and contribute to proposals and thought leadership that elevates JB&B's reputation in building performance simulation.