Senior Building Performance Engineer

Primary location: Remote

Relocation offered: No 
Employment status: Full-Time 
Travel: 11%-25% 
Non-compete: No 

The estimated base salary range for this role is "$125,000 to $155,000" per year.  
Individual pay is based upon location, skills and expertise, experience and other relevant factors

​What does it mean to work at Armstrong?

It means being immersed in a supportive culture that recognizes you as a key player in Armstrong's future. We are a large company with a local feel, where you will get to know and collaborate with leadership and your colleagues across the company.

By joining us, you'll have the opportunity to make the most of your potential. Alongside a competitive remuneration package, you will receive:

A benefits package including: medical, dental, prescription drug, life insurance, 401k match, long-term disability coverage, vacation and sick time, product discount programs and many more.
Personal development to grow your career with us based on your strengths and interests.
A casual work environment where we have a recognition program for our team, and service awards. You will also be able to make the most of our fitness center and lunchtime cafe. 
A working culture that balances individual achievement with teamwork and collaboration. We draw on each other's strengths and allow for different work styles to build engagement and satisfaction to deliver results. 

​

As the Sr. Building Performance Engineer you will lead Armstrong's building-energy modeling program to quantify and communicate the performance impact of our energy-efficient products and accelerate their adoption in U.S. commercial buildings. You'll work primarily in IESVE (ModelIT, Apache/ApacheHVAC, VistaPro; VE Navigators for ASHRAE 90.1/LEED/Title 24) to consult on projects and deliver code-compliance, LEED, and owner-option analyses comparing designs using Armstrong solutions to baseline cases. Core focus areas include assessing Templok PCM ceiling tiles (and future products) for new construction and renovations; quantifying cost/benefit; and recommending design and operational strategies using the Templok model in IESVE 2025. You will also run calibrated simulations to support M&V, translate findings into reports and technical marketing content, and educate the market via webinars and conference sessions. The role blends technical sales, building-energy modeling expertise, and cross-functional collaboration to shape Armstrong's energy-solutions portfolio and accelerate market adoption with clear, defensible modeling evidence.

What's in it for you?

• Shape the future of sustainable building design by leading cutting-edge energy modeling that drives adoption of innovative, high-performance products across the U.S. commercial building sector.
• Blend technical depth with real-world impact—combine simulation expertise, design consulting, and market education to influence how architects and engineers achieve energy efficiency and comfort.
• Work at the intersection of innovation and leadership—collaborate across R&D, sales, and marketing while mentoring peers and defining modeling standards that set industry benchmarks.

What does a Sr. Building Performance Engineer do?

Technical Sales and Modeling Support

• 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.

Technical Marketing & M&V

• 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.

Product & Tooling Development

• 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.

Industry Expertise

• 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.

Travel:

• Travel to headquarters in Lancaster, PA, customer sites, and conferences (up to 20%).

Required Qualifications

• 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.

What will make you successful?

• Deep knowledge of building physics, HVAC systems, and energy modeling with rigorous QA/QC (baselines, schedules, internal loads, envelope/infiltration, unmet hours).
• Skilled in uncertainty/sensitivity analysis; able to defend assumptions to customer engineering teams, reviewers, and utilities.
• Clear communicator; translates complex simulations into actionable recommendations for technical and executive audiences.
• Strong analytical/problem-solving skills and a collaborative, team-first mindset.
• Self-starter comfortable operating in a start-up-style environment within a large enterprise.

What will make you stand out?

• 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.

Why should you join Armstrong World Industries?

Armstrong World Industries (AWI) is an Americas leader in the design and manufacture of innovative interior and exterior architectural applications including ceilings, specialty walls and exterior metal solutions. With approximately $1.4 billion in revenue, AWI has about 3,700 employees and a manufacturing network of 21 facilities in North America.

At home, at work, in healthcare facilities, classrooms, stores, or restaurants, we offer interior solutions that help to enhance comfort, save time, improve building efficiency and overall performance, and create beautiful spaces.

For more than 160 years, we have built our business on trust and integrity. It set us apart then, and it sets us apart now, along with our ability to collaborate with and innovate for the people we're here to serve - our customers, our shareholders, our communities and our employees.

We are committed to developing new and sustainable architectural solutions, with design and performance possibilities that make a positive difference in spaces where we live, work, learn, heal and play. It's an exciting, rewarding business to be in, and we're committed to continue to grow and prosper for the benefit of all of our stakeholders. We hope you join us.

Our Sustainability Ambition

"Bringing our Purpose to Life" - lead a transformation in the design and building of spaces fit for today and tomorrow.
We are committed to:

• Engaging a diverse, purpose-driven workforce.
• Transforming buildings from structures that shelter into structures that serve and preserve the health and well-being of people and planet.
• Pursuing sustainable, innovative solutions for spaces where we live, work, learn heal and play.
• Being a catalyst for change with all of our stakeholders
• Making a positive difference in the environments and communities we impact.

Armstrong is committed to engaging a diverse, purpose-driven workforce.  As part of our dedication to diversity, AWI is committed to Equal Employment Opportunity and all qualified applicants receive consideration for employment without regard for race, sex, color, national origin, ethnicity, gender, protected veteran status, disability, sexual orientation, gender identity, or religion. We are also committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If you need assistance or an accommodation due to a disability, you may contact us at by email at AWI talent acquisition and let us know the nature of your request and your contact information. Requests for accommodation will be evaluated on a case-by-case basis. Please note that only inquiries concerning a request for reasonable accommodation will be responded to from this email address.

Come and build your future with us and apply today

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