Senior Demand Planner

Job Description

Job Description

​ Build the Forecasts That Power Our Growth - Love Where You Work

Role: Senior Demand Planner
Location: San Diego, CA 92101 (Onsite at Symphony Towers)
Compensation Range: $105,000-$125,000 DOE

At Luminize, we help brands win, and as one of the top 5 Amazon sellers in the US, the decisions we make about what to buy and when move fast — and matter. We're looking for a Senior Demand Planner to build and maintain the rolling 12-month purchasing forecast that drives budgets and buying decisions across our entire brand portfolio.

In this role, you'll turn sell-through data into forward-looking purchasing plans, partner daily with our Supply Chain Analyst team to standardize forecast inputs, and work directly with Brand Management to make sure every forecast reflects what's actually happening at the brand level. You'll also serve as our go-to expert in demand and inventory forecasting, mentoring less experienced team members along the way.

If you want your next move to mean more - more ownership, more growth, and more impact - we'd love to meet you!

What You'll Be Doing

• Maintain Luminize's rolling 12-month purchasing forecast, built from sell-through data across the full brand portfolio
• Onboard new brands into the forecasting model, and maintain visibility into offboarding as brands or SKUs wind down
• Partner with the Supply Chain Analyst team to collect, standardize, and validate the inputs that feed the forecast each month
• Work directly with Brand Management to incorporate brand-level priorities, launches, and promotional plans into the forecast
• Maintain Purchasing vs. Plan variance reporting and roll forecast outputs into total business and brand-level budgets
• Resolve forecasting and inventory discrepancies, and drive continuous improvement in forecast accuracy, turnaround time, and usability
• Serve as a subject matter expert in demand and inventory forecasting, providing guidance and training to team members

✅ What You Bring

• 5+ years of experience in supply chain, demand planning, or inventory planning (8+ years preferred)
• Proven expertise in sell-through-based forecasting and purchasing planning, ideally within Amazon 1P/3P, e-commerce, or CPG
• Advanced Excel and Google Sheets skills - comfortable building and maintaining complex, multi-tab forecasting models from scratch, not just operating pre-built templates
• Advanced knowledge of inventory and logistics management within FBA
• Proven ability to manage higher-risk decisions involving significant capital
• Proven ability to mentor and train team members
• Excellent communication skills for aligning inputs across a large analyst team and non-technical brand stakeholders
• Bachelor's degree in Supply Chain Management, Finance, Business, or a related field (or equivalent experience)

Work From Symphony Towers

Your office comes with a view, literally.

• Panoramic city and coastline views from your workspace
• Free building gym access, no separate membership needed
• Exclusive discounts at tower restaurants and cafes
• Secure bike storage
• 24/7 paid parking down town, blocks from the office
• Steps from 100+ top-rated bars, restaurants, coffee shops, and Petco Park

An Office You'll Actually Want to Be In

Built for how great teams actually work.

• Ergonomic standing desks and premium workstations
• Fully stocked kitchen, snacks, espresso
• Monthly all-company lunches to celebrate wins and stay connected
• A team lounge with pool table and games for when you need a break
• Bright, modern, collaborative space designed for focus and connection

Benefits & Perks

You do great work here and we want to take care of you outside of it, too.

• Comprehensive medical coverage, choose from multiple plans through Anthem Blue Cross
• Dental & vision, including orthodontia and annual exams
• Pet benefits, savings on vet care, products, and services
• Paid Vacation, accrue 120 hours a year, with rollover
• Paid holidays and sick time
• 401(k) with company match, we invest in your future, too

Compensation Transparency
We've listed a broad salary range of $105,000-$125,000/year to account for varying levels of experience, skill sets, and forecasting depth. Where you land in the range will depend on how your background aligns with this role.

We're committed to compensating based on value and impact, not just years on paper, and we're happy to have open conversations throughout the process.

Growth & Career Opportunities at Luminize
At Luminize, growth isn't just something we drive for our clients, it's our mindset and a big priority for our people.

We offer clear career paths and leveling guidelines so you always know where you stand, what's next, and what skills and experience you need to get there. From day one, you'll have visibility into advancement opportunities and what it takes to grow into leadership, specialization, or other cross-functional roles.

We're proud of our strong track record of promoting from within. Many of our team leads and managers started in individual contributor roles and grew by consistently showing initiative, curiosity, and impact. We only hire externally when needed, because we believe the best future leaders are often already here.

You'll also benefit from:

• Mentorship from experienced managers during 1:1s and annual performance reviews
• Cross-functional exposure to departments including content, brand management, software, supply chain, operations, and catalog
• Learning resources, including Udemy course access and additional training programs and courses
• A culture that encourages asking questions, trying new things, and leveling up together

If you're excited to take ownership and grow, both in your craft and your career, you'll be in good company here.