Multi-vendor marketplace development
A marketplace is three products in one — what buyers see, what sellers manage, and what you administer. We have built all three, with real-time search and payouts, across 200+ tasks in 5 sprints.
- 10-16 weeks
- 3 separate panels
- Real-time search & payouts
What we build
Buyer, seller and admin panels
Three separate experiences with their own logic and permissions — not one interface with buttons hidden from some users.
Search that scales
OpenSearch-backed full-text search with filters and facets that stay instant as listings grow.
Payments & payouts
Split payments, commission rules, seller balances and payout schedules.
Real-time communication
Socket.io notifications, buyer-seller messaging and live order status.
Moderation & trust
Listing review, seller verification, ratings and dispute handling — the mechanics that keep a marketplace usable.
Built to grow
PostgreSQL, Redis, file storage and background jobs sized for catalog and traffic growth from the start.
What you get
- Technical spec and architecture before any code
- Sprint demos every 1-2 weeks
- Your repository, full code access throughout
- CI/CD, monitoring and error tracking
- Support and iterations after launch
Stack we use
- Next.js
- NestJS
- PostgreSQL
- Redis
- Socket.io
- OpenSearch
Proof of work
ENEZ Market — Marketplace for Ukrainian Sellers
Separate React frontends for each role on top of one NestJS API, faceted search on OpenSearch and chat over Socket.io with Redis. The project is going into production.
Read the full case study →Frequently asked questions
How long does it take to build a marketplace?
A marketplace MVP with core buyer, seller and admin flows takes 10-12 weeks. Our multi-vendor platform with three frontends, real-time notifications and full-text search came to 200+ tasks across 5 sprints.
Why is a marketplace harder than an online store?
A store has one seller — you. A marketplace has to keep many sellers honest and paid: separate panels, commission and payout logic, moderation, disputes and search across inventory you do not control. That is why it is roughly twice the work of a comparable store.
How do payments between buyers and sellers work?
Money is collected centrally, commission is deducted, and seller balances are paid out on a schedule. We implement the split, the ledger and the payout flow, and will flag early which parts of your model need a licensed payment provider.
Can it handle a large catalog?
Yes. Search runs through OpenSearch rather than direct database queries, which is what keeps filtering instant as listings scale. Storage, caching and background jobs are planned for growth in the first sprint.
Can we start with a marketplace MVP?
That is usually the right call. We launch with the core loop — list, find, buy, get paid — and add moderation, analytics and advanced seller tools once real sellers are using it.
Building a marketplace?
Tell us who your buyers and sellers are. You will get a technical assessment and an estimate within 48 hours.