Sales, Inventory, and Operations Planning (SIOP) Lead

Position

Sales, Inventory, and Operations Planning (SIOP) Lead

Location

Auburn Hills, MI 

About us

PHINIA: Advancing sustainability today, powering a cleaner tomorrow.

PHINIA is an independent, market-leading, premium solutions and components provider with over 100 years of manufacturing expertise and industry relationships, with a strong brand portfolio that includes DELPHI®, DELCO REMY® and HARTRIDGE™. With over 12,500 employees across 43 locations in 20 countries, PHINIA is headquartered in Auburn Hills, Michigan, USA.

At PHINIA, we provide fuel systems, electrical systems, and aftermarket products and solutions of the highest quality — developed and manufactured responsibly — that are designed to enhance efficiency and reduce the environmental impact of vehicles, industrial machinery, and other applications. In doing so, we contribute to a cleaner tomorrow, treat our people and surrounding communities with respect, and hold ourselves accountable to robust ethical standards.

Our Culture

PHINIA promotes and cultivates an inclusive culture and diverse perspectives, strives to maintain its reputation for excellence, thrives on the power of collaboration, and fosters the development of our talented employees. We believe in making a positive impact through our business and actions, and we take our collective responsibility seriously.

Career Opportunities

We believe in building a brighter tomorrow for our employees as well as our customers and encourage you to learn about our long history, strong culture, new technologies, and future vision. We offer a strong local presence and interesting global opportunities. Join us on this shared journey toward a brighter tomorrow.

Job purpose

As a Sales, Inventory, and Operations Planning (SIOP) Lead, you will play a pivotal role in the Aftermarket Automotive business. This high-impact position will be responsible for leading the Sales and Operations Planning process across multiple product lines, aligning demand with supply and inventory to support revenue and profitability goals. You will play a key role in enabling cross-functional decision-making and driving operational excellence through accurate forecasting, inventory planning, and collaboration with Sales, Supply Chain, and Executive Leadership.

Key Responsibilities

• Lead the Sales, Inventory & Operations Planning (SIOP) process to align revenue and inventory strategies across product lines.
• Track and analyze demand variances, integrating past sales data and forward-looking key metrics to influence future forecasts.
• Coordinate cross-functional data points and collaborate with the Sales team to track and report forecast accuracy.
• Develop and deliver data-backed presentations recommending forecast adjustments to meet revenue objectives.
• Utilize analytical tools and critical thinking to adapt to shifting business dynamics and identify customer impact drivers.
• Partner with executive leadership to analyze and adjust inventory levels and profit margins in support of financial goals.
• Collaborate with Sales, Demand Planning, and Warehouse Operations to incorporate new business opportunities into the S&OP process.
• Manage and update forecasts within multiple MRP/ERP systems to ensure customer supply and inventory readiness.

What we’re looking for

Education/Experience – Basic Qualifications:

• Bachelor’s degree in Operations Management or related fields
• 5+ Years of experience in SIOP, Demand Planning, or Supply Chain roles. Automotive aftermarket experience is a plus.
• Significant and demonstrated proficiency with Microsoft suite (Outlook, Excel, Word, PowerPoint)

Education/Experience – Preferred Qualifications:

• Proven ability to lead cross-functional planning processes and present actionable insights to senior leadership.
• Advanced Excel, Power Point, and Power BI skills; experience with forecasting tools and MRP/ERP systems.
• Strong business acumen with the ability to balance inventory efficiency with revenue goals.
• Excellent communication and presentation skills.
• Highly organized, with a strong attention to detail and a proactive, solution-oriented mindset.

Key Job Skills:

• Analytical, creative, pragmatic thinker
• Capability to apply discretion and sound judgment in managing decisions
• Strong multi-tasking skills and ability to deliver results in a fast-paced and dynamic environment
• Excellent business acumen and demonstrated competency in regional and business partnership
• Positive and professional interpersonal skills with the