Supply Chain Planning Manager

Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world.

A career at Flex offers the opportunity to make a difference and invest in your growth in a respectful, inclusive, and collaborative environment. If you are excited about a role but don't meet every bullet point, we encourage you to apply and join us to create the extraordinary.

Job SummaryFlex intends to spin off its Cloud and Power Infrastructure segment into a new, independent publicly traded company, Axiom, with the spin planned for Q1 2027. If the intended spin occurs, this role will support Axiom, a company focused on critical digital infrastructure and delivering end-to-end power and thermal management solutions for AI data centers and other mission-critical applications.

General Purpose: 

To support our extraordinary teams who build great products and contribute to our growth, we’re looking to add a Material Planning Manager located in Fontana, CA.

Reporting to the Materials Manager, the Materials Planning Manager is responsible for the Material Planning Responsible for developing, directing and coordinating material planning activities. Enhance customer service levels possible by balancing supply and demand.

Principle Accountabilities:

• Directs the team in the use of best practices in the daily execution of finished goods and WIP planning
•  Manages, coaches and mentors a team. Works with the team on continuous development and performance management.
• Directs activities of Planners to ensure that inventory level and turn goals are achieved, including reduction of back orders and enhancing customer service.
•  Meets with Senior Management to obtain strategic information that could impact the forecast. Works with team to modify the forecast for historical and environmental events. Works closely with different departments to accurately develop and maintain an accurate forecast.
• Hold cross-functional meetings to review the Supply and Demand plan

Review issues and make recommendations that deal with long-term constraints, customer service levels, inventory targets, the current forecast, and backlog.

Education/Experience

Typically requires a bachelor’s degree in a related field or equivalent experience and training. Typically requires a minimum of 4 years of related experience. 

What you'll receive for the great work you provide:

• Full range of medical, dental, and vision plans
• Life Insurance
• Short-term and Long-term Disability
• Matching 401(k) Contributions
• Vacation and Paid Sick Time
• Tuition Reimbursement

Application Deadline:

Applications for this job position will be accepted for at least five days following the job posting start date below and continuing until the end date below or until the position is filled. This posting may close sooner due to application volume.

Job Posting Start Date 10-09-2026 Job Posting End Date

The base pay range for this position is provided below. The final base rate offered will be determined using job-related, non-discriminatory criteria, including but not limited to experience, qualifications, geographic location, education, external market data, and internal equity.

$81,400.00 USD - $111,900.00 USD Annual

Job CategoryGlobal Procurement & Supply Chain

Relocation: Not eligible

Is Sponsorship Available?

No

Flex is an Equal Opportunity Employer and employment selection decisions are based on merit, qualifications, and abilities. We do not discriminate based on: age, race, religion, color, sex, national origin, marital status, sexual orientation, gender identity, veteran status, disability, pregnancy status, or any other status protected by law. We're happy to provide reasonable accommodations to those with a disability for assistance in the application process. Please email [email protected] and we'll discuss your specific situation and next steps (NOTE: this email does not accept or consider resumes or applications. This is only for disability assistance. To be considered for a position at Flex, you must complete the application process first).