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Marketplace / logistics · 2024
Empty repo to first paying customer in 11 weeks
A two-person team had a design and no backend. I built a lean, maintainable marketplace backend — listings, matching, payments, and notifications — that they could run themselves.
The founders needed a real backend to pilot with carriers, fast, without committing to architecture they couldn’t maintain or afford with two engineers.
// The approach
client
Web + mobile
service
API (modular monolith)
listings · matching · bids
store
PostgreSQL
single source of truth
external
Stripe Connect
idempotent webhooks
service
Notifications
email + SMS
A modular monolith — simple to run, easy to split later.
Chose deliberately boring tech: a modular monolith in TypeScript on Postgres, deployable by one person.
Built the core domain — listings, shipper/carrier matching, and a bidding flow — behind a clean API.
Integrated Stripe Connect for marketplace payouts with idempotent webhooks.
Added transactional email + SMS notifications and a minimal admin console.
Set up CI/CD, staging, and observability so the team could ship safely from day one.
stack
TypeScriptNodePostgreSQLStripeAWSGitHub Actions
“
He built us something we could actually own. Two years later we’re still on the same core — no rewrite, no regrets.
Case studies, metrics, prior companies, and testimonials in this template are illustrative and anonymized for demonstration; they do not name or represent any real client or employer and are not a guarantee of future results. Outcomes vary by system, team, and constraints.
next step
Have something that has to ship — or stay up?
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