Senior Building Performance Engineer Job

Armstrong World Industries is a leader in the design and manufacture of innovative architectural applications. The Sr. Building Performance Engineer will lead the building-energy modeling program to promote the adoption of energy-efficient products in U.S. commercial buildings, focusing on technical sales, modeling support, and cross-functional collaboration.

Responsibilities:

• Partners with A/E firms and ESCOs from concept modeling through high-fidelity IESVE simulations to analyze design options and quantify financial cases to incorporate Armstrong products in building energy designs
• Quantifies annual energy/cost impacts, peak-load reduction, sizing changes, and first-cost trade-offs for Templok and new solutions
• Performs load calculations; support system selection and sizing (coils, fans, pumps) and psychrometrics; draft BAS sequences to leverage Templok within ASHRAE 55 comfort guidelines
• Supports code-compliance modeling and submittals (ASHRAE 90.1 PRM/Appendix G, IECC, Title 24) and LEED EA documentation leveraging Armstrong products on customer projects
• Builds early-phase screening tools and VE scripts/post-processing to accelerate building performance evaluations and highlight the contributions of Armstrong solutions
• Leads IESVE studies across building types and climates; define scenarios and present results and recommendations to technical and executive audiences
• Performs calibrated simulations (ASHRAE Guideline 14/IPMVP) for real projects; write concise M&V reports and case studies; present results to technical and non-technical audiences
• Translates results into clear value propositions/metrics for the customer: peak reduction, hours-of-exceedance, PMV/PPD, economics (payback, LCCA), etc
• Contributes to grid-interactive, load-shifting, and demand/cost analyses where applicable
• Leverages IESVE simulations and project experience to inform product roadmap
• Establishes QA/QC checklists, acceptance criteria, and reference VE files to ensure reproducibility of modeling results
• Develops a library of IESVE simulation results and parametric runs as quick-lookup reference cases to inform product performance estimates across building/climate scenarios
• Develops rough-order performance tools calibrated to VE results and first-principles heat-transfer methods for early-phase estimation and sales enablement
• Maintains current knowledge of ASHRAE 55/62.1/90.1, Standard 140, IECC, Title 24, LEED and regional programs
• Mentors junior modelers; perform formal peer reviews; deliver internal trainings on VE workflows, QA/QC, and documentation standards

Requirements:

• B.S. in Mechanical or Architectural Engineering (or related fields; M.S. preferred)
• 10+ years as a practicing building energy modeler with commercial HVAC sizing/design responsibility
• Proven delivery of ASHRAE 90.1/IECC/Title 24 compliance and LEED v4/v4.1 EA modeling through full submittal/review cycles
• Advanced Excel and PowerPoint
• IESVE expert (required); familiarity with EnergyPlus/OpenStudio/eQUEST
• ASHRAE BEMP strongly preferred, PE a plus
• LEED AP desirable; CEM/HBDP
• Advanced in Python or other scripting languages
• M.S in Mechanical, Architectural Engineering or a similar discipline