Web & App Development for Marketplace Startups
Two-sided platforms — buyers, sellers, listings, and payments — built to handle real transactions.
Marketplaces are some of the most complex apps to get right: two distinct user types, listings and search, messaging, payments, and trust and safety all interacting at once. AI builders are good at producing the happy-path version — browse, list, buy — but the edge cases that come up with real transactions (failed payments, disputes, payout timing) are usually left for later.
We help marketplace founders fill in those gaps — reviewing buyer and seller permissions, payment and payout logic, and the search and messaging systems that need to hold up once real money and real users are involved.
What Matters Most for Marketplaces
- Clear separation between buyer, seller, and admin roles and permissions
- Reliable payment splitting, payouts, and fee handling
- Search and discovery that scales with listing volume
- Messaging and notification systems between buyers and sellers
- Trust and safety basics — reviews, reporting, and dispute handling
How We Approach It
- Role and permission review for buyer, seller, and admin flows
- Payment splitting and payout logic review and fixes
- Search and discovery performance tuning
- Messaging and notification reliability improvements
- Basic trust and safety features such as reviews and reporting flows
Frequently Asked Questions
Our marketplace MVP handles the happy path but not edge cases — what's missing?
Common gaps include failed or partial payments, payout timing and fees, handling cancellations or disputes, and what happens when a listing is removed while it's in someone's cart. We map these out as part of an AI App Rescue audit.
Can you add seller payouts, like Stripe Connect?
Yes — implementing or hardening multi-party payment flows like Stripe Connect is a common part of marketplace rescue work.
Do you build new marketplace features or just fix existing ones?
Both — we can extend an existing marketplace with new features, like messaging or reviews, or focus purely on production-hardening what's already built.
We Also Build For
Healthcare & HealthTech
From patient portals to clinical dashboards — built with the privacy, accessibility, and reliability healthcare products demand.
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Dashboards, payment flows, and financial tools built with the security and precision your users expect.
Learn moreE-commerce
Storefronts, checkout flows, and admin dashboards that convert — and hold up under real traffic.
Learn moreBuilding for Marketplaces? Let's make sure it's production-ready.
Whether you need a security review, new features, or a full AI App Rescue, we can scope a fixed-price engagement around your stack.
Get in Touch