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Principal R&D Engineer - Fire Hazards, Investigations, and Failure Analyses

UL, LLC

Northbrook, IL · HybridFull-time$160–200K/yrSeen 2w agoSeen in employer's feed 4 days ago

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At a glance

Compensation
$160–200K/yr
Location
Northbrook, ILHybrid
Schedule
Full-time
Work Authorization
Not specified

Olive lists jobs from US employers, including remote roles you can work from the United States.

Requirements

Credentials this posting asks for.

Certified Fire And Explosion InvestigatorIllinois Professional Engineer License

Job overview

UL Solutions seeks a Principal Engineer to lead client projects involving fire and explosion engineering analyses, failure analyses, and post-incident investigations, particularly in energy industries. The role includes executing complex analyses, mentoring colleagues, reviewing deliverables, and communicating findings to stakeholders. Candidates must have a relevant engineering degree, extensive relevant experience, CFEI certification, field evaluation experience, and Illinois professional engineering licensure; additional state licensure is preferred.

Skills & qualifications

RequiredNice to have

Skills

Fire and Explosion Engineering AnalysisFailure AnalysisCause and Origin AnalysisFact-Finding InvestigationsNumerical SimulationField Data AnalysisTest Data AnalysisField EvaluationsFire Protection EngineeringExplosion Protection EngineeringProcess Safety EngineeringIndustrial EngineeringLaboratory TestingPhysical TestingPower Generation and Distribution SystemsBuilding and Fire CodesComputational Fluid DynamicsFinite-Element AnalysisCommunicationTechnical WritingIndependent WorkTeamwork

Qualifications

Mechanical, Chemical, Fire Protection, Explosion Protection or Related Engineering DegreeMS+12 or BS+15 Years Relevant ExperienceCertified Fire and Explosion InvestigatorIllinois Professional Engineer LicenseAdditional State Licensure12+ Years Relevant Work Experience With MS or PhD15+ Years Relevant Work Experience With BS

Benefits

Medical Insurance
Dental Insurance
Vision Insurance
401(k) Match
Paid Time Off

Full job description

The UL Solutions Research and Development team is seeking an experienced Principal Engineer to lead activities in advanced fire and explosion engineering analyses, failure analyses, and post-incident fact-finding investigations. Many of these initiatives will focus on solving client problems related to fire and explosion hazards in energy industries, including energy storage and renewables. The abilities to initiate, scope and execute complex client projects, to guide and mentor team members and colleagues in completing these projects, and to provide professional review of official deliverable documents are central to this role. A successful candidate will be creative, curious, adaptable to a fast-paced and multi-disciplined environment and willing to work collaboratively with a team of other engineers, scientists and technicians to solve complex problems.

  • Initiate, plan and execute client projects primarily in the areas of fire and explosion protection engineering analysis including failure analysis, cause-and-origin analysis, and fact-finding investigations.

  • Carry out engineering analyses using combinations of numerical simulation, field data, and test data inputs.

  • Mentor and guide team members and colleagues for larger client project initiatives.

  • Complete formal technical reports of work completed, including all information and details about strategy, approach and outcome.

  • Provide professional engineering review and, where appropriate, signature for key client deliverables.

  • Work across industries / segments, collaborate with key stakeholders, and provide timeline communications to both internal and external stakeholders.

  • Stay ahead of changing technologies in the field by reading journals and scientific publications, attending academic conferences, writing, and collaborating on original publications, and delivering presentations.

  • Interprets internal/external business challenges and recommends best practices to improve products, processes or services.

  • Where appropriate, present project results and findings at academic and industry conferences.

  • Degree in mechanical engineering, chemical engineering, fire protection engineering, explosion protection engineering or other relevant discipline is required. MS or PhD preferred.

  • MS or PhD requires additional 12+ years of relevant work experience. BS requires additional 15+ years of relevant work experience.

  • Certified fire and explosion investigator (CFEI) certification and experience in field evaluations of fires and failure events is required.

  • Professional engineering licensure in the state of Illinois is required. Licensure in additional states is preferred.

  • Preferred professional experience includes:

  • Professional engineering consulting experience in fire protection engineering, explosion protection engineering, process safety engineering, or industrial engineering

  • Familiarity with laboratory and physical testing environments

  • Familiarity with power generation and distribution systems - including generators, power electronics, transformers, and high-voltage breakers

  • Familiarity with building and fire codes

  • General familiarity with computational fluid dynamics (CFD) analysis and finite-element analysis (FEA) techniques.

  • Excellent communication and technical writing skills are required.

  • Ability to work independently but also having a team player mindset, giving priority to team goals and maintaining good team relationships, is required.

What you’ll experience working for ULS

UL Solutions has been pioneering change since 1894 and we’re still leading the way. From day one, we’ve blazed a trail protecting the planet and everyone on it. Our teams have influenced billions of products, plus services, software offerings and more. We break things, burn things and blow things up. All in the name of safety science.

That’s where you come in — because none of it could happen without you. It takes passion to protect people, problem-solving to safeguard personal data and conviction to make the world a more sustainable place. It takes bold ideas and brilliant minds to build a better world for future generations across the globe.

This is more than a job. It’s a calling. A passion to use our expertise and play our part in creating a more secure, sustainable world today — and tomorrow. As a member of our safety science community, you’ll use your ideas, your energy and your ambition to innovate, challenge and ultimately, help create a safer world.

Everyone here is unique. But we’re also a global community, working together to help create a safer world. Join UL Solutions and you can connect with the brightest minds in the business, all bringing their distinct perspectives and diverse backgrounds together to deliver real change.

Empowering our customers to keep the world safe means thinking ahead. It means investing in training and empowering our people to learn and innovate. At UL Solutions, we help build a better future — one where everyone benefits.

Join UL Solutions to be at the center of safety. To learn more about us and the work we do, visit UL.com

Total Rewards: We understand compensation is an important factor as you consider the next step in your career. The estimated salary range for this position is $160,000 to $200,000 USD and is based on multiple factors, including job-related knowledge/skills, experience, geographical location, as well as other factors. This position is eligible for annual bonus compensation with a target payout of 20% of the base salary. This position also provides health benefits such as medical, dental and vision; wellness benefits such as mental and financial health; and retirement savings (401K) commensurate with the standard rewards offered in each individual location or country. We also provide full-time employees with paid time off including vacation (15 days), holiday and personal days (totaling 12 days) and sick time off (72 hours).

#LI-SG2

#LI-Hybrid

A global leader in applied safety science, UL Solutions (NYSE: ULS) transforms safety, security and sustainability challenges into opportunities for customers in more than 110 countries. UL Solutions delivers testing, inspection and certification services, together with software products and advisory offerings, that support our customers’ product innovation and business growth. The UL Mark serves as a recognized symbol of trust in our customers’ products and reflects an unwavering commitment to advancing our safety mission. We help our customers innovate, launch new products and services, navigate global markets and complex supply chains, and grow sustainably and responsibly into the future. Our science is your advantage.

UL LLC has been and will continue to be an equal opportunity employer. To assure full implementation of this equal employment policy, we will take steps to assure that:

Persons are recruited, hired, assigned and promoted without regard to race, color, age, sex or gender, sexual orientation, gender identity, gender expression, transgender status, religion, creed, national origin, ethnicity, citizenship, ancestry, disability, genetic information, military or veteran status, pregnancy, marital or familial status, or any other protected category under applicable law.

How this job compares

Set against the 686 open Fire Protection Engineer jobs on Olive Jobs, counted November 3, 2026.

Pay
  • This posting$160–200K/yr
  • US median$91–160K/yr507 salary ranges

This range's midpoint, $180K, is 43% above the US median midpoint ($126K) — in the top quarter of Fire Protection Engineer salary ranges across the US.

Openings
Olive Jobs lists 17 open Fire Protection Engineer jobs in Illinois and 686 across the US. 5% of them nationwide are listed as remote or flexible.
Hiring the most across the US
Experience
This posting asks for at least 12 years of experience — more than three in four Fire Protection Engineer postings that state a minimum ask for (median 7 years, across 630 postings).
Education
594 of the 686 open Fire Protection Engineer jobs (87%) ask for a bachelor's degree or higher.

Counted across the open, public US postings on Olive Jobs on November 3, 2026. Pay medians are the middle values of the low ends and of the high ends of postings that list both ends of a range in the same cadence (a yearly salary or an hourly rate); a range's midpoint is halfway between its ends. Pay and experience figures resting on fewer than 20 postings are left out.

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