Senior Project Engineer - CFD
About The Position
Our CFD practice sits at the intersection of fluid dynamics, building science, and human outcomes. We are looking for a CFD Specialist who can build a rigorous model, understand when the model is telling you something real, and communicate that into guidance a design engineer or client can act on. This is a role on a small, focused team with direct impact on some of the most technically interesting building projects in the country. You'll work closely with our HVAC design engineers as an embedded technical resource, and directly with clients on projects where the stakes — occupant comfort, energy performance, and occupant health— are high.
Requirements
- B.S. or M.S. in Mechanical Engineering, Aerospace Engineering, Civil/Environmental Engineering, or a closely related field. Advanced degree preferred.
- 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.
- 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.
Nice To Haves
- Professional licensure or certifications are not required; PE/EIT or relevant building science credentials are a plus.
- Familiarity with SimScale and/or Flovent is a plus.
Responsibilities
- Develop and execute CFD (computational fluid dynamics) models using the latest software and related platforms to support HVAC design decisions across a wide range of building types.
- Evaluate thermal comfort conditions for occupants — accounting for airflow patterns, surface temperatures, radiant effects from glazing, solar gain, and more.
- Model outdoor airflow dynamics: exhaust re-entrainment, equipment air intake/discharge, wind effects at building openings.
- Simulate particulate and contaminant dispersion — pathogens, smoke, odors — in occupied spaces including critical environments (ORs, isolation rooms, labs).
- Analyze thermal microclimate effects from heat rejection sources such as heat pumps, generators, and cooling towers.
- Partner with JB&B's HVAC design engineers early in the design process to understand the real problem being solved — not just model what's handed to you.
- Help engineers and clients ask better questions; bring CFD insight to the table before problems become costly to fix.
- Serve as an internal technical resource and thought partner for the broader engineering team.
- Produce clear, well-organized simulation results with actionable recommendations.
- Develop presentation materials — visualizations, reports, executive summaries — that make complex fluid dynamics legible to non-specialists.
- Contribute to proposals, technical papers, and thought leadership content that elevates JB&B's reputation in building performance simulation.
Benefits
- Hybrid workplace offering the flexibility to work both from home and the office
- Comprehensive benefits package including 401k employer match and stock options
- Paid time off (PTO), volunteer program and employee resource groups
- Training and professional development courses through JB&B University
Stand Out From the Crowd
Upload your resume and get instant feedback on how well it matches this job.
What This Job Offers
Job Type
Full-time
Career Level
Senior
