Senior Supply Planner

Security Equipment Supply; Earth City (MO); On-site; USD 84,000 - 95,000; Full time

Benefits offered by this job

Competitive compensation

Profit sharing & SEP IRA + bonuses

Health benefits

Career growth

Job summary

Security Equipment Supply, Inc. (SES) in Earth City, MO seeks a Senior Supply Planner to own end-to-end finished-goods planning in a fast-moving CPG environment. You will align demand, inventory health, supplier performance, and operations to balance cost and service.

The role emphasizes proactive problem-solving, analytical rigor, and ownership. Expect hybrid work options, rapid impact, and cross-functional collaboration across procurement, production, and distribution.

Qualifications

• Bachelor’s degree in Supply Chain, Business, or related field.
• 5+ years in supply or production planning (CPG preferred).
• Strong Excel proficiency (advanced functions expected).
• Experience building dashboards, tools, and planning models.
• ERP and inventory management system experience required.
• APICS CPIM or CSCP preferred.

Responsibilities

• Lead end-to-end supply planning to ensure product availability across channels.
• Create, manage, and adjust purchase and transfer orders with accuracy and urgency.
• Build vendor relationships and address performance issues professionally.
• Anticipate risk with long-lead items and develop contingency plans.
• Optimize inventory to prevent stockouts and reduce obsolescence.
• Analyze data trends and forecast signals to improve planning accuracy.
• Monitor KPIs and drive corrective actions.
• Lead or participate in cost-reduction and continuous improvement initiatives.
• Travel occasionally to vendors for procurement and relationship-building.

Skills

Analytical thinking

Detail oriented

Proactive

Education

Bachelor’s degree in Supply Chain, Business, or related field

Tools

ERP system

Excel

Job description

If you are unable to complete this application due to a disability, contact this employer to ask for an accommodation or an alternative application process.

Senior Supply Planner

Full Time Earth City, MO, US

2 days ago Requisition ID: 2071

Salary Range: $84,000.00 To $95,000.00 Annually

Job Title: Senior Supply Planner

Company: Security Equipment Supply, Inc. (SES)

Location: Earth City, MO

Job Type: Full-Time | Exempt

About Security Equipment Supply (SES)

Security Equipment Supply (SES) is a second-generation, family-owned distributor of low-voltage electronics. Since 1982, we've grown to 16 locations across 11 states, delivering trusted solutions in access control, fire and life safety, surveillance, home entertainment, and more.

We’re in a transformative phase—modernizing operations, investing in technology, and enhancing customer and employee experiences. SES is committed to growing talent from within and creating meaningful career paths across the organization. Most roles are hybrid, providing flexibility while driving impact.

At SES, we don’t just work here — we care for what we’ve built and the people we work with.

Work the SES Way: Curiosity Fun-Loving Spirit Commitment to Growth

Are you the kind of person whosees problems before they appear, takes ownership without waiting to be asked, and thrives on getting things right the first time?
Do you take your work seriously, move with intention, and bring a level of detail and follow-through that others simply can’t match?

If so, you may be the Senior Supply Planner we’re looking for.

About the Role

This is a high-visibility, high-accountability position owning the end-to-end supply planning of finished goods across a complex, fast-moving CPG environment. We need someone who gets up to speed quickly, thinks ahead, and proactively drives solutions—not someone who waits for direction.

You will be the central link between demand, inventory health, supplier performance, and operational readiness. This role requires a sharp mind, strong analytical capability, and a business-first approach to balancing cost, supply risk, and customer expectations.

What You’ll Do

• Lead supply planning from start to finish, ensuring product availability across all channels.
• Create, manage, and adjust purchase and transfer orders with accuracy and urgency.
• Build strong vendor relationships and confront performance issues professionally and promptly.
• Anticipate risk—especially with long-lead items—and develop contingency plans before issues escalated.
• Optimize inventory to prevent stockouts, minimize excess, and reduce obsolescence.
• Analyze data trends, supply constraints, and forecast signals to improve planning accuracy.
• Monitor and report KPIs, highlighting risks and driving corrective actions.
• Own and evolve planning tools, dashboards, and processes to improve visibility and efficiency.
• Lead or participate in cost-reduction and continuous improvement initiatives.
• Travel occasional to vendors for procurement and relationship-building.

Who You Are

Proactive & Forward-Thinking

• Doesn’t wait to be told—sees what needs to be done and does it.
• Brings ideas, not excuses; solutions, not problems.

Serious About the Work

• Professional, polite, and reliable—not the life of the party, but clear, steady, and effective.
• Communicates with intention and follows through every time.

Highly Analytical & Detail-Driven

• Spots small discrepancies before they become big issues.
• Builds accurate, actionable plans and models.

Urgent & Accountable

• Operates with a strong sense of ownership and urgency around goals and objectives.
• Meets deadlines, commitments, and expectations consistently.

A Strategic Thinker

• Understands the “why” behind the work and connects decisions to business goals.
• Thinks outside the box and challenges old processes respectfully and productively.

Qualifications

• Bachelor’s degree in Supply Chain, Business, or related field.
• 5+ years in supply or production planning (CPG preferred).
• Strong Excel proficiency (advanced functions expected).
• Experience building dashboards, tools, and planning models.
• ERP and inventory management system experience required.
• APICS CPIM or CSCP preferred.

Success Metrics

• Inventory Turnover
• Purchase Order Cycle Time
• PO Accuracy
• Cost Savings Achieved
• Forecast Accuracy
• On-Time Delivery

This job operates in a professional office environment. This role routinely uses standard office equipment such as computers, phones, photocopiers, and standard software suite(s), such as the ERP (Enterprise Resource Planning) system, and the Microsoft Suite of products.

Physical Demands

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. While performing the duties of this job, the employee is occasionally required to stand, walk or sit; use of hands and fingers, handle or feel objects, tools or controls; reach with hands and arms; climb stairs; balance; stoop, kneel, crouch or crawl; talk or hear; taste or smell. The employee must occasionally lift and/or move objects up to twenty-five pounds. Specific vision abilities required by the job include close vision, distance vision, color vision, peripheral vision, depth perception, and the ability to adjust focus.

Why Join SES?

• Competitive compensation: market-aligned salary + performance incentives
• Profit sharing & retirement: SEP IRA contributions and annual profit-sharing bonuses
• Health benefits: affordable medical, dental, and vision plans
• Career growth: ongoing development, advancement opportunities, and a promote- from-within culture