Sr. Category Manager

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

$111,000.00-$152,600.00 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.


The Senior Category Manager is accountable for delivering measurable business value across a highly complex, global category portfolio. This role leads category strategy, supplier performance, and commercial execution to drive cost savings, mitigate risk, and ensure supply continuity across critical operations.

This position oversees approximately $100M+ in annual spend across 10+ manufacturing plants, managing international supply chains for bituminous polymers, granules, facer, and scrim materials and other various categories

Success in this role is defined by the ability to navigate market volatility, strengthen supplier networks, and deliver consistent financial and operational results while influencing key stakeholders across the organization.

Key Performance Outcomes

1. Category Strategy & Financial Impact

• Develop and execute category strategies that consistently achieve or exceed cost savings targets across a $100M+ spend portfolio
• Actively manage pricing volatility tied to crude oil markets, implementing strategies to protect margins
• Identify and deliver cost reductions, value engineering, and demand optimization opportunities

2. Global Supply Chain & Risk Management

• Ensure reliable supply across several bituminous and ISO manufacturing plants, including critical inputs for the growing GoBoard business
• Mitigate risk by developing alternative sourcing strategies, supplier redundancy, and capacity expansion plans
• Proactively monitor global supply market trends and adjust sourcing strategies to maintain continuity and competitiveness

3. Supplier Performance & Development

• Build and manage high-performing supplier relationships across international markets, including frequent negotiations and performance reviews
• Lead new supplier development initiatives to expand capacity and improve supply resilience
• Drive supplier accountability for quality, delivery, and innovation, while addressing a higher frequency of complex quality-related challenges

4. Commercial Excellence & Contracting

• Negotiate complex agreements that deliver favorable commercial terms, improved working capital, and reduced risk exposure
• Structure contracts that align with both short-term market conditions and long-term strategic goals
• Continuously improve cost structures, payment terms, and service levels

5. Stakeholder Leadership & Influence

• Partner closely with Operations, Functional Leaders, and cross-business teams to align sourcing strategies with business priorities
• Deliver data-driven insights and recommendations that influence decision-making at the business unit level
• Lead and influence matrixed teams to execute high-impact initiatives

6. Operational Excellence & Continuous Improvement

• Leverage analytics, e-sourcing tools, and ERP systems to drive procurement efficiency and transparency
• Proactively identify and resolve risks related to cost, quality, and supply disruptions
• Implement continuous improvements to category performance and procurement processes

Qualifications

• Bachelor's degree required
• 8+ years of experience which will include strategic sourcing/procurement
• Experience managing complex, global supply chains and high-spend categories
• CPSM preferred
• Strong track record of delivering quantifiable cost savings and supplier improvements
• Advanced negotiation, contract management, and supplier relationship management skills
• Knowledge of commodity markets (preferably oil-linked), contract law, and financial analysis
• Experience with SAP or similar ERP systems and e-sourcing tools
• Strong analytical, strategic thinking, and communication skills
• Ability to influence cross-functional stakeholders in a matrixed environment

Why You'll Want This Role

1. Own a High-Impact, High-Visibility Portfolio

Manage a $100M+ global category that directly impacts manufacturing operations, business growth, and profitability-your work will be seen and valued.

2. Solve Complex, Market-Driven Challenges

Operate in a fast-moving environment shaped by global supply dynamics and crude oil volatility, where your decisions directly drive competitive advantage.

3. Play a Key Role in Business Growth

Support critical operations and contribute to the expansion of innovative products like GoBoard, positioning yourself at the center of strategic growth.

4. Shape Supplier Strategy at Scale

Lead international supplier relationships, capacity expansion, and new supplier development, giving you ownership of long-term supply strategy.

5. Career Growth & Advancement

This role is scoped at the Senior Category Manager level with clear potential to expand into broader GP&L leadership responsibilities, offering a strong path for advancement.

#LI-DNI

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.