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Sébastien Bernaz

2026 – ongoing · Remote

BandS — an operations agent for a buy-and-resell activity

Entrepreneuriat personnel — Web projects run independently from 2005 to 2011, and the first sites delivered to clients.

Personal project launched in October 2026 to equip an activity of buying in clearance stores and reselling on a consumer-to-consumer platform. The goal: to know quickly and accurately whether the activity is sustainable, and to cut the time it takes. Four flows: purchases, listings, shipments and steering.

Role held: AI Product Manager — technology stack selection, setup of the AI-assisted development environment (rules written before the first line of code, one skill per flow, a dedicated operations agent), design of the business rules. The agent turns unstructured input into structured rows: a photographed till receipt becomes purchase lines and lots, photos become a listing ready to publish, a sale email becomes a transaction and a parcel preparation sheet. It publishes nothing itself — automated publishing would expose the account to a ban — and computes no management figure: margins, stock and contributions are spreadsheet formulas that it feeds.

Three gains: time given back on repetitive entry and preparation tasks, an activity that flags itself rather than on request, and financial tracking readable at a glance. Tracking relies on dashboards and monthly charts, a morning brief generated every day and a report on the first of the month. Inconsistencies are flagged, never silently fixed: a receipt whose lines do not add up to the amount paid is not written, and an ambiguous sale is not matched by guesswork. The code is written with Claude Code and covered by automated tests.

Achievements

Skills applied

Technical environment