Sr. Product Engineer - Single Ply

Johns Manville•Milan, OH

About The Position

Who We Are Johns Manville is a leading manufacturer and marketer of premium-quality insulation and commercial roofing, along with glass fibers and nonwovens for commercial, industrial and residential applications. Our products are used in a wide variety of industries including building products, aerospace, automotive and transportation, filtration, commercial interiors, waterproofing and wind energy. A proud member of the Berkshire Hathaway family of companies, we serve customers in more than 80 countries around the globe. We are committed to delivering positive and powerful experiences, because we are successful only when our employees and customers thrive. We are passionate, we care about people, we perform at a superior level, and we protect others and our environments. Pay Range $95,200.00-$130,900.00 Annual This is the base salary pay range that an applicant can expect to make upon hire. Pay within this range will vary based upon relevant experience, skills, and education among other factors. In addition, this position is eligible for an incentive bonus. Make an Impact Where Innovation Meets Performance Are you passionate about materials science, product innovation, and solving complex engineering challenges? Join our Roofing Systems team as a Senior Product Engineer – Single Ply, where you’ll play a critical role in advancing high‑performance TPO membrane technologies from concept through full commercialization. In this role, you’ll be a technical leader; driving formulation excellence, supporting manufacturing plants, and collaborating across R&D, product management, supply chain, and operations. Your work will directly influence product quality, customer satisfaction, and the next generation of roofing solutions. What You’ll Do: As a Senior Product Engineer, you will provide technical and formulation leadership across both existing products and new developments. Your responsibilities will span laboratory research, manufacturing support, and large‑scale commercialization. Your Day to Day: Product Development & Formulation Leadership Lead new TPO product and process development from R&D through manufacturing scale‑up Drive formulation development for both commercialized and in‑development TPO products Design and execute experimentation, trials, and testing to assess product performance and success Lead trial work, scale‑ups, and full commercialization of new TPO products Identify requirements and develop clear, value‑driven product definitions aligned with customer needs Manufacturing & Technical Support Provide internal and external technical support, including troubleshooting customer complaints and product issues Support manufacturing plants during emergencies and ongoing product or process issues Support equipment design solutions to maintain and improve product quality Work directly in production environments during trials to ensure successful implementation Provide technical support to external partners, including suppliers and vendors, as it relates to the TPO product line Project Leadership & Commercialization Plan, design, and lead TPO projects using safety, quality, production, cost, and data‑driven Six Sigma principles Drive excellence in staged product development and project management within the Innovation Commercialization Group Lead multiple projects across the division through benchmarking and cross‑functional coordination Execute Division goals, standardization efforts, and best‑practice sharing across applicable Roofing Systems plants Support AOP initiatives, CAPEX planning, and strategic business projects Quality, Data & Continuous Improvement Perform root‑cause and corrective‑action analysis to resolve product and process issues Support development of manufacturing specifications by linking product requirements to manufacturing capabilities through complex experimentation Analyze data to drive product, process, and quality improvements Ensure findings are properly documented, tracked, and shared through formal reports and presentations within the quality management system Cross‑Functional Collaboration & Market Insight Collaborate closely with R&D, product management, process engineering, supply chain, and operations teams Partner with internal experts and external resources to advance core TPO technologies Monitor competitor technologies and market intelligence, feeding insights back to innovation and business teams Support second‑source raw material initiatives and identify new technical supply options with the supply chain team Safety, Compliance & Leadership Actively support and promote a strong safety culture by encouraging safe behaviors and engagement Demonstrate an aggressive intellectual property protection mindset for new developments Supervise or lead individuals or project teams by setting priorities, providing direction, and supporting milestone achievement What You’ll Bring to the Team: You’ll bring a strong technical foundation, proven leadership skills, and the ability to thrive in both laboratory and manufacturing environments. This role requires curiosity, accountability, and a hands‑on approach to innovation. Please Keep in Mind If you do not meet 100% of these requirements, we at JM still want to hear from you. So, if you are interested in the role, we encourage you to apply so we can learn how your skills and talents can contribute to our team. Benefits Johns Manville (JM) offers a wide range of benefits to employees. Some are subsidized by the company and others are fully employee-paid. Health benefits include a choice of comprehensive medical plans, a dental plan, vision plan, wellness program and critical illness insurance. JM sponsors a 401(k) plan which includes a sizeable company match. JM offers paid vacation and also provides paid sick and parental leave for eligible employees. Additionally, Johns Manville provides basic life Insurance, short-term and long-term disability coverage, an employee assistance program, and business travel accident coverage. Supplemental life insurance and accidental death and dismemberment insurance are available as well. The company also offers a variety of tax saving accounts; health spending account, traditional flexible spending account, and a dependent care spending account. JM also offers a tuition reimbursement program for undergraduate and certain graduate programs. Johns Manville supports employee growth with vast educational opportunities and a company-wide mentoring program. This program pairs employees and leaders to grow skills, build stronger internal networks and strengthen the company’s succession planning process. Johns Manville also offers soft and hard skills training facilitated by internal and external presenters. Our talent management team prioritizes the holistic growth of our workforce. Diversity & Inclusion Johns Manville believes diversity and inclusion in our workplace is critical for the long-term success of our company. We are committed to retaining, developing and attracting a diverse workforce that fosters an inclusive work environment in which all employees are treated with dignity and respect. This is the right thing to do for our employees, our company and our communities. Incumbent must be physically able to perform essential job functions. Reasonable accommodations may be made to enable individuals with disabilities to perform essential job functions. We are proud to be an Equal Opportunity/Affirmative Action employer. We maintain a drug-free workplace and perform pre-employment substance abuse testing. Johns Manville is a proud member of the Berkshire Hathaway family of companies, serving customers in more than 80 countries, supplying innovative products to the construction, aerospace, automotive, filtration and energy industries. With a more than 160-year legacy, we understand that our story continues to grow only with the right people saying, thinking and doing the right things. Make your story our story. Johns Manville believes diversity and inclusion in our workplace is critical for the long-term success of our company. We are committed to retaining, developing and attracting a diverse workforce that fosters an inclusive work environment in which all employees are treated with dignity and respect. This is the right thing to do for our employees, our company and our communities.

Requirements

Bachelor’s in Chemical/Mechanical or related STEM field with 5 years experience or Master's degree and 3 years experience or PhD with 1 year process and/or product engineering
Relevant engineering experience with 5 years, 3 years or 1 year
Lead design and development of new/enhanced products
Advance knowledge of engineering principles and problem-solving techniques.
Experience with feasibility studies, validation testing
Lead cross‑functional teams
Lead design reviews, FMEAs, root cause analysis
Demonstrated success in launching new products or driving improvement initiatives that have had resulted in successful business impacts
Analyze data to drive improvement
Ensure compliance with standards and policies
Coordinate for component selection and sourcing
Strong understanding of testing, validation, QA
Proven leadership and collaboration skills
Proficient in Microsoft Word, Excel, PowerPoint, Outlook
Strong interpersonal, verbal, and written communication skills
Ability and willingness to work in a production environment during trials
Ability to execute on deliverables
Ability to work independently and with cross‑functional teams
Heavy travel required (20%–35%)
Supervises/Leads individuals or a project team to achieve milestones and objectives by setting priorities and providing direction.
May provide feedback for performance evaluations.
May be required to lift, carry, push or pull up to and including 25 pounds.
Work environment is typical of a research and development facility; during plant trials may be exposed to environmental conditions of cold, heat, high noise levels, moving mechanical parts, heights, dust/mist/gas/fumes, extensive walking or climbing, etc.

Nice To Haves

Experience in plastics extrusion, plastics, and rubber like materials is a plus
Experience with complex DOE for technology improvement is a plus
Master’s degree and/or Doctorate degree in an advanced chemical, materials, plastics, or relevant STEM field is a plus but not required

Responsibilities

Lead new TPO product and process development from R&D through manufacturing scale‑up
Drive formulation development for both commercialized and in‑development TPO products
Design and execute experimentation, trials, and testing to assess product performance and success
Lead trial work, scale‑ups, and full commercialization of new TPO products
Identify requirements and develop clear, value‑driven product definitions aligned with customer needs
Provide internal and external technical support, including troubleshooting customer complaints and product issues
Support manufacturing plants during emergencies and ongoing product or process issues
Support equipment design solutions to maintain and improve product quality
Work directly in production environments during trials to ensure successful implementation
Provide technical support to external partners, including suppliers and vendors, as it relates to the TPO product line
Plan, design, and lead TPO projects using safety, quality, production, cost, and data‑driven Six Sigma principles
Drive excellence in staged product development and project management within the Innovation Commercialization Group
Lead multiple projects across the division through benchmarking and cross‑functional coordination
Execute Division goals, standardization efforts, and best‑practice sharing across applicable Roofing Systems plants
Support AOP initiatives, CAPEX planning, and strategic business projects
Perform root‑cause and corrective‑action analysis to resolve product and process issues
Support development of manufacturing specifications by linking product requirements to manufacturing capabilities through complex experimentation
Analyze data to drive product, process, and quality improvements
Ensure findings are properly documented, tracked, and shared through formal reports and presentations within the quality management system
Collaborate closely with R&D, product management, process engineering, supply chain, and operations teams
Partner with internal experts and external resources to advance core TPO technologies
Monitor competitor technologies and market intelligence, feeding insights back to innovation and business teams
Support second‑source raw material initiatives and identify new technical supply options with the supply chain team
Actively support and promote a strong safety culture by encouraging safe behaviors and engagement
Demonstrate an aggressive intellectual property protection mindset for new developments
Supervise or lead individuals or project teams by setting priorities, providing direction, and supporting milestone achievement

Benefits

Johns Manville (JM) offers a wide range of benefits to employees.
Some are subsidized by the company and others are fully employee-paid.
Health benefits include a choice of comprehensive medical plans, a dental plan, vision plan, wellness program and critical illness insurance.
JM sponsors a 401(k) plan which includes a sizeable company match.
JM offers paid vacation and also provides paid sick and parental leave for eligible employees.
Additionally, Johns Manville provides basic life Insurance, short-term and long-term disability coverage, an employee assistance program, and business travel accident coverage.
Supplemental life insurance and accidental death and dismemberment insurance are available as well.
The company also offers a variety of tax saving accounts; health spending account, traditional flexible spending account, and a dependent care spending account.
JM also offers a tuition reimbursement program for undergraduate and certain graduate programs.
Johns Manville supports employee growth with vast educational opportunities and a company-wide mentoring program.
This program pairs employees and leaders to grow skills, build stronger internal networks and strengthen the company’s succession planning process.
Johns Manville also offers soft and hard skills training facilitated by internal and external presenters.
Our talent management team prioritizes the holistic growth of our workforce.