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Enterprise / Enterprise Marketplace Development
Enterprise Capability

Enterprise Marketplace Development

Custom Multi-Vendor Marketplace Platforms Built for 100K+ SKUs

CTO / VP Engineering / VP Commerce at 200-5000 employee company building or scaling a multi-vendor marketplace
$100,000 - $300,000
137,000+
listings managed
NAS directory platform with structured catalog search
100K+
SKUs supported
multi-vendor inventory sync architecture
sub-200ms
real-time bid latency
auction platform proving Supabase Realtime under concurrent writes
30
languages deployed
Korean manufacturer hub with localized storefronts
Lighthouse 95+
performance score
across all enterprise commerce projects
Architecture

Headless marketplace architecture with Next.js on Vercel for ISR-powered storefronts, Supabase PostgreSQL with row-level security for multi-tenant vendor isolation, and Stripe Connect for automated split-pay commission processing. Event-driven inventory pipeline handles 100K+ SKU sync via Supabase Realtime and edge functions, with dedicated search indexing through Algolia or Meilisearch for sub-10ms faceted catalog queries.

Dónde fallan los proyectos empresariales

Here's the thing about monolithic ecommerce platforms -- they're fine until they're not And "not fine" usually hits around 100K SKUs when you've got multiple vendors trying to sync inventory simultaneously. I've watched Shopify stores grind to a halt, product pages timing out, customers seeing "in stock" on items that sold out three hours ago. That stale stock data isn't just annoying. It's abandoned carts, chargebacks, and angry emails to your support team at 2am. The revenue bleed from slow page loads alone -- Google's own data puts conversion drop-off at 4.6% per additional second -- is enough to justify rearchitecting the whole thing. Honestly, most platforms weren't built for genuine multi-vendor complexity. They were built for one store, one inventory source, one fulfillment flow. Try to bolt on 200 vendors with independent stock feeds and you're fighting the architecture every single day. What makes this so frustrating is that it's not obvious at first. You'll launch on Shopify Plus, things feel fine at 10K SKUs, maybe even at 30K. But somewhere around that 80-100K range -- especially once you've got vendors in different time zones pushing inventory updates overnight -- the cracks appear fast. Pages that used to load in 1.2 seconds start hitting 4 or 5. Your search index falls out of sync. Customers in Sydney are buying stock that a vendor in Toronto already cleared two hours prior. That's not a configuration problem. That's an architectural mismatch between what the platform was designed for and what your business actually needs.
Stripe Connect looks straightforward on paper It's not. The split-pay logic alone is manageable -- but then you hit your first multi-currency refund on a disputed order that involved three vendors, and suddenly your "naive implementation" (their words in the docs, not mine) completely falls apart. And here's the real kicker: vendors don't care about your technical debt. They care that their Thursday payout was wrong by $340. Do that twice and they're listing on a competitor's marketplace by Monday.
No tenant isolation at the database layer is the kind of shortcut that feels fine until it isn't And when it isn't, it's catastrophic. Vendor A shouldn't be able to query Vendor B's orders, pricing logic, or customer data -- full stop. It's not just a security breach risk. It's a GDPR violation, a SOC 2 audit failure, and the kind of story that ends up on TechCrunch. One exposure event and your entire vendor network evaporates overnight.
SaaS marketplace platforms -- Sharetribe, Mirakl, even Shopify Plus with multi-vendor apps -- will get you to market fast But they'll also cap your ceiling. Commission structures are often fixed or barely configurable. Workflows are theirs, not yours. So when your business model evolves (and it will), you're either hacking around platform constraints or staring down a full replatforming project that costs more than building custom did originally.

Qué entregamos

Stripe Connect Split-Pay Engine

Payment splitting here isn't just "send 80% to the vendor." We're talking configurable commission tiers -- flat rates, volume thresholds, category-specific cuts -- plus multi-currency support for vendors in London, Toronto, or Sydney getting paid in their local currency. Plus partial refund reversal that correctly unwinds each vendor's split proportionally. Pretty straightforward to describe. Genuinely complex to implement correctly.

100K+ SKU Inventory Pipeline

Vendor feeds are messy. Some vendors push via API, some upload CSVs at 3am, some fire webhooks that occasionally arrive twice or not at all. So we build an event-driven ingestion pipeline that handles all three -- with validation, approval workflows, and conflict resolution baked in. Updates hit the storefront and search index simultaneously via Supabase Realtime. Not sequentially. Not eventually. At the same time.

Multi-Tenant Vendor Dashboards

Vendor dashboards are scoped at the Supabase RLS level, not wrapped in application-layer if-statements someone could accidentally misconfigure. That distinction matters enormously. Each vendor sees their products, their orders, their payout history, their analytics -- and nothing else. The database enforces it. Not the code, not a middleware check, not a prayer.

ISR-Powered Catalog Storefront

Serving 100K+ product pages fast means you can't render on every request. Next.js Incremental Static Regeneration pre-builds pages and revalidates them on-demand the moment inventory changes -- so buyers get static-fast delivery without stale data. We're consistently hitting Lighthouse scores of 95+ in production. Not in a demo environment. In actual catalogs with real vendor complexity.

Faceted Search at Scale

Search across a massive multi-vendor catalog needs its own infrastructure. We integrate Algolia or Meilisearch -- depending on your budget and query volume -- with vendor-scoped facets, location-based availability filtering, and synonym handling so "sneakers" and "trainers" return the same results. Sub-10ms query response at scale. That's not marketing copy, that's what these tools actually deliver when configured correctly.

Multi-Vendor Order Orchestration

A cart with items from four different vendors isn't one order. It's four fulfillment streams that happen to share a checkout. Our split-order logic routes each line item to the correct vendor, generates vendor-specific packing slips, and tracks delivery status independently. So when Vendor C in Chicago ships late, it doesn't contaminate the order status for Vendors A, B, and D who already fulfilled perfectly.

Preguntas frecuentes

How does Stripe Connect handle split payments across multiple vendors in a single checkout?

We create a PaymentIntent with a `transfer_group` that ties all vendor splits to a single charge. Once payment clears, individual transfers go out to each vendor's connected Stripe account -- minus the platform commission, which we calculate at checkout using rules stored in Supabase. Flat rate, tiered by volume, category-specific -- all configurable without a code deploy. And refunds? They automatically reverse the correct proportion back to each party. Not an approximation. The exact right amount.

Can this architecture handle 100,000+ SKUs without performance degradation?

Yes, and here's how it actually works. Product catalog pages use Next.js Incremental Static Regeneration -- pre-built at deploy time, then revalidated on-demand whenever inventory changes rather than hammered fresh on every request. Search runs through a dedicated Algolia or Meilisearch index that handles faceted queries across 100K+ SKUs in single-digit milliseconds. Underlying database queries lean on Postgres indexes and materialized views. The result is a storefront that stays fast under real load, not just in benchmarks.

How do you handle vendor onboarding and KYC compliance?

Vendors onboard through Stripe Connect Express or Custom accounts -- Express is faster, Custom gives you more control over the UX and compliance handling. Stripe manages identity verification, bank linking, and ongoing KYC so you're not touching that liability yourself. We wire the onboarding flow directly into the vendor dashboard with status tracking, document upload, and automated step progression. Platform admins get a review queue before any vendor goes live. Nothing slips through.

What's the timeline and cost for building a custom enterprise marketplace?

Honest timeline for an enterprise marketplace build: 12-16 weeks across three phases. Foundation first -- payments, auth, basic storefront. Then scale -- inventory pipeline, search, vendor dashboards. Then polish -- performance tuning, analytics, monitoring. Investment typically runs $100K to $300K depending on vendor count, how gnarly your integration requirements are, and whether you need custom commission logic or can work with standard tiers. These aren't padded estimates. That's genuinely what it takes to build this correctly.

Why choose a custom headless stack over SaaS marketplace platforms like CS-Cart or Sharetribe?

SaaS platforms are the right call for early-stage marketplaces. Seriously. But they hit a wall -- performance, customization, commission flexibility -- somewhere around 100K SKUs and 200+ vendors. At that scale you need a custom commission engine, vendor-scoped RLS enforced at the database level, and a frontend that doesn't degrade under catalog load. What we build gives you full code ownership, infrastructure costs that scale linearly rather than per-transaction, and zero dependency on a SaaS vendor's product roadmap decisions.

How does real-time inventory sync work across hundreds of vendors?

Vendor feeds arrive in every format imaginable -- API pushes, overnight CSV uploads, webhooks that occasionally duplicate or drop entirely. We build an event-driven pipeline that handles all of it. Updates flow through validation and conflict resolution, then propagate simultaneously to the storefront via Supabase Realtime subscriptions and to the search index. Thousands of SKU updates per minute, processed without ever blocking the buyer experience. That's the architecture working the way it should.

What is enterprise marketplace?

An enterprise marketplace is a digital platform where businesses can host a variety of third-party vendors to sell their products or services alongside their own offerings. It allows enterprises to expand their product range and cater to a broader customer base without directly managing inventory for every product. According to Gartner, such marketplaces are becoming essential for digital business strategies, enabling companies to enhance customer experience by providing a one-stop-shop solution and facilitating ease of comparison and purchase for consumers.

What are the 4 types of enterprise?

The four types of enterprise typically include: sole proprietorship, partnership, corporation, and limited liability company (LLC). Sole proprietorships are owned by a single individual, offering simplicity but personal liability. Partnerships involve two or more individuals sharing responsibility and profits, with varying degrees of liability. Corporations are independent legal entities offering limited liability to owners but come with more regulations and taxation. LLCs combine elements of partnerships and corporations, providing limited liability while allowing flexibility in management and tax benefits. Each type offers unique benefits and challenges, depending on business goals and needs.

Ver esta capacidad en acción

NAS Equipment Directory Platform

137K+ listings managed with structured search and real-time updates—the same catalog-scale architecture powering marketplace storefronts

Real-Time Auction Platform

Sub-200ms bidding latency proved our Supabase Realtime and edge function architecture handles concurrent marketplace transactions

Korean Manufacturer Multi-Language Hub

30-language deployment demonstrating multi-region storefront capabilities for international marketplace operators

Headless CMS Migration Services

Enterprise content architecture patterns applied to marketplace vendor onboarding and product content management

Next.js Enterprise Development

ISR, Server Components, and edge deployment patterns that power high-performance marketplace storefronts at scale
Compromiso empresarial

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