JobsGenerac

Demand Planner

Generac · Sussex, WI

Posted Aug 9, 2026 · We last checked this listing on Sep 20, 2026

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Likely interview questions for this role

Written from this job description, not a generic list. Each one notes what the interviewer is really checking.

Behavioral

Tell me about a time your forecast was significantly off. What did you find when you did the root cause analysis, and what did you change afterward?

real experience with forecast variance analysis and whether they learn from misses rather than just reporting them

Give me an example of a time you had to get Finance, Sales, and Operations to agree on a forecast assumption when they each wanted something different.

ability to influence without authority across functions, which the posting calls out directly

Tell me about a dashboard or report you built that changed how a team made decisions.

ability to turn analysis into something non-technical stakeholders actually use

What's an example of a continuous improvement idea you pushed for in a forecasting or reporting process, and how did you get it adopted?

initiative and follow-through on process improvement, which the role explicitly asks for

Technical

Walk me through how you'd build a statistical demand forecast for a product line with strong seasonality and some promotional activity mixed in.

whether the candidate understands forecasting methods beyond just pulling a number from a system

What's your experience with SAP or a similar ERP system in the context of demand planning, and what have you actually done inside it day to day?

whether their ERP experience is hands-on and specific or just surface familiarity

Describe the SIOP or IBP process at a place you've worked. What was your role in the monthly cycle?

whether they've actually operated inside a formal demand review cadence, not just heard of one

How do you decide which historical data points to include or exclude when building a baseline forecast, especially around one-time events or anomalies?

judgment in data cleaning and statistical reasoning, not just tool operation

How comfortable are you with Excel and Access for this kind of work, and can you describe something more advanced you've built, like a pivot-based model or a macro?

actual depth of tool skill versus just listing software on a resume

What does master data integrity mean to you in the context of a demand planning system, and what happens downstream if it's wrong?

understanding of why data hygiene matters beyond their own immediate task

Situational

Sales says demand is going to spike next quarter but your statistical model doesn't show it. How do you handle that conversation and what do you do with the forecast?

how they balance data-driven forecasting against stakeholder input without just caving or dismissing it

You've got three forecast reviews due this week, a data quality issue in the system, and a last-minute request from Marketing for a promotional impact estimate. How do you prioritize?

time management and prioritization under the multiple-deadlines pressure the role implies

How would you explain a forecast risk to a plant manager who doesn't think in statistical terms?

communication skill translating technical forecasting concepts to operational audiences

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The full job description

As published by Generac.

We believe power is a promise - a shared commitment to be there for others when it matters most. For more than 65 years, we've turned big ideas into solutions that help protect homes, strengthen businesses and build a more resilient, efficient, sustainable energy future. Ready to Power a Smarter World with us? Major Responsibilities • Develops, maintains, and updates accurate statistical demand forecasts within the demand planning system, incorporating business assumptions and market intelligence to support operational and financial planning across products, markets, and regions • Analyzes historical sales trends, customer demand patterns, seasonality, promotional activity, and other business drivers to support forecast development and maintenance • Support the monthly SIOP/IBP demand planning process through forecast analysis, reporting, and participation in cross-functional demand review discussions • Performs forecast variance analysis and root cause analysis to identify drivers of forecast error and recommend corrective actions • Collaborates with Sales, Marketing, Finance, Supply Planning, and Operations teams to gather inputs and improve forecast assumptions and accuracy • Prepares and distributes recurring demand planning reports, dashboards, and forecast summaries for business review • Simplifies and communicates forecast trends, risks, and insights in a clear and concise manner for both technical and non-technical audiences • Supports continuous improvement initiatives related to forecasting processes, reporting, data quality, and system utilization • Maintains data integrity and supports master data management activities associated with demand planning systems and processes • Utilizes quantitative and qualitative analysis techniques to support decision-making and identify demand trends and risks Minimum Job Requirements Education • Bachelor’s degree in Math, Business, Statistics, Supply Chain Management or other related quantitative disciplines, or equivalent experience. Work Experience • 3 years of experience in demand planning, market analysis, forecasting or related field Knowledge / Skills / Abilities • Experience with statistical analysis tools and understands how to tweak with and analyze baseline forecasts within a system • APICS CPIM/CSCP certification a plus • Ability to think, analyze, and report on diverse business segments • Ability to proficiently use without direct authority and works effectively with all levels of the organization • Able to manage multiple projects under tight deadlines • Microsoft Excel, Access, PowerPoint and Word required • Able to influence others • Experience using SAP or equivalent ERP Physical Demands: While performing the duties of this job, the employee is regularly required to talk and hear; and use hands to manipulate objects or controls.  The employee is regularly required to stand and walk.  On occasion, the incumbent may be required to stoop, bend, or reach above the shoulders.  The employee must occasionally lift up to 25 pounds. Specific conditions of this job are typical of frequent and continuous computer-based work requiring periods of sitting, close vision, and the ability to adjust focus “We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, national origin, disability status, protected veteran status, or any other characteristic protected by law.”

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