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Commerce case study
Mining Access
A Canadian B2B marketplace connecting mining-resource buyers with providers of equipment, labor, and services.
Architecture map
Booking, payment, delivery, payout, and review lifecycle
Client experienceService boundaryData workflow
Challenge
Build the core booking and payment domains while integrating them into an existing collaborative Next.js frontend and several external services.
Solution
Built the listing and booking backend, payment-aware delivery lifecycle, Stripe Connect flows, dashboards, moderation, reviews, media, and mapping integrations.
Architecture
Express and MongoDB enforce booking transitions and role policies; Stripe webhooks drive payment truth while scheduled jobs, sockets, email, and typed frontend modules coordinate operations.
Contribution highlights
The engineering work behind the product.
- Built listings and bookings with role-aware transitions, pricing, counteroffers, availability, completion, and approval behavior.
- Implemented Stripe payments and Connect onboarding with saved methods, webhooks, transaction tracking, refunds, flags, idempotency, and payouts.
- Developed buyer, provider, and admin aggregation APIs for spending, revenue, activity, categories, and pending actions.
- Built scheduled and real-time notifications, moderation, reports, provider approval, account controls, and rate limiting.
- Built eligible reviews, provider responses, moderation, distributions, and synchronized listing rating aggregates.
- Integrated categories, favorites, S3/CloudFront media, Google Maps, typed Axios APIs, Zustand state, Zod forms, and role-aware UI workflows.
Implementation stack
Technologies grouped by responsibility.
Frontend
Next.js 15React 19TypeScriptTailwind CSSRadix UIReact Hook FormZodZustandAxiosChart.jsStripe React SDK
Backend/CMS
Express 5JWTSocket.IOAgendaWinstonHelmetCORSRate limiting
Data
MongoDBMongoose
Integrations
Stripe PaymentsStripe ConnectGoogle Maps
Infrastructure/Delivery
AWS S3CloudFront application integration
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