Ecommerce FP&A Manager, Amazon FBA (Finance & Planning)
About Triptych Ventures
Triptych Ventures operates the Dunwell and Cranbury brands: hundreds of SKUs and millions of units annually sold through Amazon FBA in the US, with a Walmart marketplace launch underway in 2026. We are an eight-figure, profitable, founder-led company with a distributed team across the US, Taiwan, and Southeast Asia, and we are building our operations hub in Hanoi. Finance and planning sit at the center of how we run: every buy, price, and marketing decision is governed by contribution math and cash discipline.
The role
You will own the company's financial planning and analysis function. This is a hands-on producer role, not a supervisory one: you build the models, run the numbers weekly, and put decision-ready analysis in front of the CEO. You own the analytical layer; treasury, banking, and bookkeeping are handled by our US finance lead and outside CPA team, and category strategy is owned by the CEO and Head of Supply Chain.
What you will own
- Weekly contribution report: the full account P&L (sales, advertising, Amazon fees, refunds, disposals, COGS, net profit) with year-over-year analysis and commentary, delivered every Monday
- Rolling cash flow forecast: Amazon settlement timing, supplier and PO outflows, advertising cash-out, at weekly granularity for the near term and monthly beyond
- Demand forecasting and buy sizing: order quantities, stockout buffers, seasonal PO timing, and the math on trade-offs like sell-through versus disposal
- Landed cost and unit economics: per-SKU cost stacks (factory, freight, duties and tariffs, fulfillment fees), maintained as the company's source of truth for pricing and margin decisions across Amazon and Walmart
- Quarterly targets and variance analysis against them
- Finance liaison to our CPA team on inventory valuation, COGS methodology, and month-end close
- How we work (non-negotiables)
- Committed supplier POs are reconciled into the cash forecast every week; the forecast is never allowed to drift from the PO tracker
- The near-term forecast runs at weekly granularity, not monthly aggregates
- Models are documented and built for a second reader; material assumption changes and errors are surfaced proactively, with the delta quantified
- Every recommendation comes with the math shown
- Must have
- Demonstrable Amazon marketplace experience: you have personally run P&L or FP&A on a real Seller Central account and can speak fluently to settlements, FBA fee structures, TACOS, and reimbursements
- 4+ years of highly quantitative FP&A experience at an ecommerce company at our scale or larger (eight-figure annual revenue)
- Proven cash flow modeling: you have built and maintained a rolling cash forecast that a leadership team actually ran the business on
- Advanced Excel / Google Sheets modeling; comfortable owning a multi-tab model end to end
- Excellent written English; async-first communication. C1 on the CEFR scale.
Strongly preferred
• Sellerboard, A2X, or comparable Amazon analytics tooling
• Inventory-heavy or import businesses: landed cost, duties and tariffs, supplier payment terms
• Walmart marketplace exposure
• SQL or scripting for data pulls
Engagement details
Full-time. Based in Hanoi (remote initially; office planned). Core hours GMT+7, with 2 to 3 hours of overlap with US working hours for a weekly live review; the rest is async. Reports to the CEO.
To apply
- Answer these four questions. Applications that skip them will not be considered.
- Describe a forecast or model you built that turned out to be materially wrong. What was the error, who caught it, and what did you change in your process afterward
- What is the largest Amazon account you have personally run P&L or FP&A for Give annual revenue, SKU count, and the tools you used.
- Walk us through how you would reconcile committed supplier PO payments into a 13-week cash forecast, and how you would keep the two from drifting apart.
- Your notice period and expected monthly rate in USD.
