Database Design & Modeling
Somewhere sensible to keep your data
A structure that matches how the business actually works, so the questions you need answered later are still possible to ask.
Photo: webandi / Pixabay 
Photo: Alexas_Fotos / Pixabay
Selected work demonstrating this service.
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Built Stripe and in‑app purchase entitlements
Built the payments and entitlements layer — Stripe alongside Apple and Google in‑app purchase — gating the directory, search and export through an 11‑table access model checked on the server.
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Built a loyalty wallet, leagues and badges
Built the loyalty and reputation system — 67 functions over a 31‑table ledger, with leagues, badges and a redemption shop — taking a row lock on the balance to close the double‑spend window.
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Built the hiring and seafarer career workspaces
Built the hiring marketplace and the seafarer career workspace — 151 stored functions across 48 tables — covering vacancies, applications, certificates, rank progression and verified sea time.
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