Process Engineer
westlake · US - Lenexa, KS · United States · On-site
Posted Oct 5, 2026
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Westlake offers you the potential to enrich your work life and career experience in an entrepreneurial environment. We work together to enhance peoples' lives through our products and presence in the communities in which we operate.
Process Engineer – Westlake Roofing and Stone
Westlake Royal Building Products (Westlake Royal), a Westlake company (NYSE: WLK), is a leading manufacturer of exterior and interior building products across North America. This role supports our DaVinci® Roofscapes brand—an industry leader in composite slate and shake roofing tiles that capture the authentic look of natural slate and cedar while delivering long-lasting performance (including Class A fire and Class 4 impact resistance) and are proudly made in the USA.
COMPETITIVE PAY & BENEFITS
Benefits Effective Day 1
Med, Den, Vision, 401k (4% match), Annual Retirement Contribution (3%), Life & AD&D
Paid Vacation
Tuition Assistance Program
Fitness Reimbursement Program
Opportunity for Advancement
JOB SUMMARY
Westlake Roofing and Stone is seeking a hands-on Process Engineer to develop, configure, and optimize our industrial manufacturing processes from inception through start-up. In this role, you will bridge engineering and plant operations—analyzing production data, troubleshooting equipment, and leading process improvement projects. You will ensure our manufacturing systems consistently deliver high-quality products that meet both strict internal specifications and evolving customer requirements.
ESSENTIAL FUNCTIONS
Safety Leadership : Place the utmost importance on working safely. Maintain a safe and orderly work environment for self and others at all times in strict compliance with Westlake Safety Policies and Procedures.
Process & Product Specification (Core Focus) : Establish, define, and document the precise product and process specifications required to manufacture Westlake Roofing products. Determine how our manufacturing equipment must be configured and run to successfully meet these standards and fulfill customer requirements. Develop, maintain, and optimize Bills of Materials (BOMs) within SAP for new and existing products, ensuring alignment between material structures, process specifications, and production capabilities.
Project Management : Define project scope, timelines, deliverables, and budgets in collaboration with Project Managers and Engineering. Ensure the integrity of project execution from inception to start-up.
Data, Testing, & Certification : Assess industrial processes by taking measurements, interpreting data, and assisting with official process certifications. Provide analytical support to the National Lab for reporting on technical product and process issues.
Plant Technical Support : Provide engineering leadership and support to the plants by developing technical modifications to existing equipment and workflows. Compile and deliver clear training materials to plant teams regarding newly established…