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Sr. Production Planner - Supply Optimization

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.​

SUMMARY

The position is responsible for performing planning and scheduling activities for the Polyethylene Group at Westlake’s Houston corporate office. These responsibilities include updating and maintaining the production schedule, interaction with manufacturing, sales, and logistics groups for the purpose of overall supply chain management, responding to availability inquiries, production and inventory management, vacation relief for other planners, providing input for raw material planning, responding to production schedule inquiries, supporting the S&OP process, and participating in projects and other tasks as assigned. 

DUTIES AND RESPONSIBILITIES

May include, but are not limited to, the following:

  • Develop and maintain production schedules based on sales orders, customer demand, manufacturing capacity and inventory targets
  • Work closely with Sales and Business Management to maintain inventory at optimal levels and develop options for adjusting targets as needed.
  • Act as a liaison between Sales, Manufacturing, Logistics, and other groups to resolve issues and ensure smooth workflows.
  • Assess requested changes in customer demand and provide feedback on product availability
  • Identify opportunities for improvement in order fulfillment, inventory management, and scheduling optimization.
  • Analyze production schedules and customer demand to set economic run lengths for the production assets.
  • Provide regular status updates on production schedules and project timelines to management and other affected departments
  • Serve as backup for other Planners as assigned
  • Respond to after normal working hour calls concerning production schedule, production orders and customer order commitments.
  • Any additional responsibilities or tasks as assigned.

EDUCATION, EXPERIENCE AND QUALIFICATIONS

  • Bachelor’s degree in engineering, supply chain, or other relevant field required.
  • Minimum 5 years’ experience in operations/engineering, planning, logistics, inventory management, and/or customer service. Experience with polymer manufacturing is considered a plus.
  • Strong understanding of manufacturing processes, capacity planning, and supply chain principles
  • Attentive to detail for accurate data entry, schedule maintenance, and inventory tracking.
  • Strong organizational and multitasking ability, to be able to manage multiple projects and priorities simultaneously.
  • Ability to identify issues, analyze data, and develop effective solutions to production challenges.
  • Experience with scheduling software and proficiency in Microsoft Office, particularly Excel, for data analysis.
  • Excellent project team membership and verbal/written communication skills.

PHYSICAL DEMANDS

While performing the duties of this job, the employee is frequently required to sit; stand; walk; use hands to touch, handle, or feel; reach with hands and arms; and talk or hear.  The employee is occasionally required to stoop, kneel, or crouch.  The employee must regularly lift and/or move up to 10 pounds. Specific vision abilities required by this job include close vision, distance vision, color vision, peripheral vision, depth perception, and ability to adjust focus.

WORK ENVIRONMENT

The noise level in the work environment is usually moderate as normally based in an office. This position is eligible for a hybrid work schedule.  Some work may be required in the operating units which may necessitate usage of required PPE including safety glasses, hearing protection, etc.  May also result in exposure to outside elements and may require usage of stairs and elevators.  10% travel including air travel or auto travel may occasionally be required.

Westlake is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to any characteristics protected by applicable legislation.

If you are an active Westlake employee (or an employee of any Westlake affiliates), please do not apply here. You will apply via the Jobs Hub application in Workday.

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CEO of Westlake Corporation
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Albert Chao
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Average salary estimate

$105000 / YEARLY (est.)
min
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$90000K
$120000K

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Our mission is to serve our clients by enhancing daily life through the products and services we provide, which in turn make life better for people every day.

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Full-time, hybrid
DATE POSTED
October 22, 2025
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