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MARKETPLACE & TWO-SIDED PLATFORMS

Marketplace Software Development, for multi-vendor commerce, escrow and the cold-start problem.

We build two-sided marketplaces and multi-vendor commerce platforms: split-payment payouts, seller KYC and tax reporting, milestone escrow, counterfeit detection and local matching that makes a thin market feel busy. The work is aimed at the hard parts of launching and scaling a marketplace, the ones that stall most founders long before they have a million users.

Marketplace Software DevelopmentSPLIT PAYOUTSellers · fee · tax in one capture$240 → 4 ledgersMILESTONE ESCROWFunds held until acceptedShipped → AcceptedCOUNTERFEIT SCANImage · price · seller signalsAuthentic · risk 0.03LOCAL MATCHINGCold start · seeded by radius3 sellers · 1.2 kmorder $240$204$24$12Platform feePlatform fee$24.00Tax reserveTax reserve$12.00⌕ Vintage camera3 sellers nearbyclosest 1.2 km · from $210View listingRangefinder cameraSeller ✓ verified · 4.9 ★$240.00Pay $240Rangefinder cameraSeller ✓ verified · 4.9 ★Paid · heldShippedDelivered🔒 In escrow · protectedRangefinder cameraSeller ✓ verified · 4.9 ★Paid · heldShippedDeliveredAccept & releaseRangefinder cameraSeller ✓ verified · 4.9 ★Paid · heldShippedDeliveredReleased ✓ Rate sellerBUYER APPFind nearby · pay once · protectedLens & Co.KYC VERIFIEDActive listings48Views today1,204Tax profileW-9 on file ✓Waiting for orders…Lens & Co.KYC VERIFIEDNEW ORDER$240.00Ship by Fri · buyer 1.2 km🔒 Funds secured in escrowPrint labelLens & Co.KYC VERIFIEDPAYOUT+$204.00Arriving Tue · bank ••421099-K updated★ 5.0 from buyerSELLER APPVerified · paid on the milestone
$4.3T
Projected global online marketplace spend by 2027
<24 Hrs
Typical target for automated seller KYC onboarding
Instant
Split payouts and escrow fund segregation at checkout
Up to 4.2x
Conversion uplift reported for semantic search over basic keyword search
THE MARKET SIGNAL

From one store with one stockroom, to a network where others carry the inventory.

A single-brand shop carries all the inventory risk. A marketplace separates acquiring customers from holding stock, so the operator earns a commission on every sale and can offer a catalogue far bigger than any one company could stock.

01 · NETWORK CONVERGENCEGlobal Shift
$4.3T

Projected global online marketplace spend by 2027

Roughly two-thirds of global e-commerce now flows through marketplaces, not single-vendor web shops.

OPERATIONAL REALITY

Owning the platform where supply and demand meet creates network effects that are hard for an incumbent to copy.

02 · B2B MARKETPLACE EMERGENCEEnterprise Wholesale
Fast

B2B marketplaces are growing faster than traditional B2C e-commerce

Industrial supplies, chemicals and raw materials are moving from email purchase orders to self-serve, multi-vendor ordering portals.

OPERATIONAL REALITY

B2B buyers expect Net-30/60 terms, negotiated tier pricing and ERP punchout catalogues inside the checkout.

03 · TRUST & SAFETY AS PRODUCTBuyer Retention
88%

Shoppers who say escrow and review integrity influence where they buy

A buyer will only pay an unfamiliar seller if the marketplace protects their money until delivery is confirmed.

OPERATIONAL REALITY

Escrow protection and verified seller identities turn a nervous first-time buyer into a repeat customer.

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WHAT'S DRIVING DEMAND

The mechanics behind two-sided platforms that actually work.

Balancing supply and demand, splitting payments between several parties, fighting counterfeit listings and meeting tax reporting rules. A marketplace has to get all of that right at the same time.
01 · COMPLEX SPLIT SETTLEMENT

One Basket, Several Sellers, Correct Payouts

When a buyer checks out with items from three vendors, the payment has to split into each vendor's balance, take out your commission and hold back tax reserves, all from a single charge.

02 · SELLER ONBOARDING & TAX

KYC, 1099-K and DAC7 Without the Paperwork

Checking bank details and identity documents by hand puts friction at the front door. Automated workflows verify tax IDs, banking details and sanctions lists in minutes, not days.

03 · TWO-SIDED LIQUIDITY

Solving the Chicken-and-Egg Launch

With no buyers, sellers leave. With no sellers, buyers bounce. Tight vertical and local focus, plus smart search, concentrates activity until trades start to happen on their own.

04 · TRUST, FRAUD & ESCROW

Milestone Release and Dispute Resolution

Funds are held until carrier tracking confirms delivery. That cuts chargebacks and discourages fake listings.

05 · HYPERLOCAL GEOSPATIAL SEARCH

Matching Buyers with the Nearest Qualified Provider

On-demand services and rentals need spatial indexing (H3 hexagons or geohash) that finds the closest suitable provider quickly enough to feel instant.

06 · DISINTERMEDIATION DEFENSE

Giving People a Reason to Stay On-Platform

When buyers and sellers try to take a deal offline to dodge fees, masked in-app messaging and real payment protection make staying on the platform the safer choice.

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SOFTWARE WE SHIP

Scalable marketplace platforms for B2B wholesale, service networks and consumer commerce.

We take on the full stack of a two-sided platform: multi-vendor catalogue search, escrow and payouts, vendor tools and the mobile apps both sides use.

01MARKETPLACE & TWO-SIDED PLATFORMS
SYSTEM TOPOLOGY

Multi-Vendor Cart & Split Payout Payment Engine

A unified checkout that lets a buyer purchase from several sellers at once, then splits funds and deducts your take rate automatically.

PRODUCTION PIPELINE FLOWLIVE TELEMETRY
CLIENT LAYER
Client Ingress
Sub-Second Global CDN
ENGINE CORE
Processing Core
High Concurrency Microservice
SECURE STORAGE
Persistent Vault
ACID Guaranteed Storage
PROVEN OUTCOME
Node.js, Stripe Connect Custom, PostgreSQL, Redis, Next.js.
Enterprise Scale Deployment

Engineered for sub-second response times and complete multi-tenant isolation under peak operational loads.

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APPLIED MARKETPLACE AI

Machine learning for matching, fraud defence and search conversion.

We use models where they protect the platform and help buyers find what they want faster: screening listings, understanding vague queries, suggesting prices and spotting fraud rings.

01 · VISUAL COUNTERFEIT & PROHIBITED GOODS DETECTION

Authenticity Screening for New Listings

Vision-language models that check new listings for replica logos, copyright infringement and policy-violating products before they go live.

Production ReadySub-second SLA
02 · PERSONALIZED HYBRID NEURAL SEARCH & DISCOVERY

Search That Understands Intent

Hybrid search that blends BM25 keyword scoring with dense vector embeddings, so a query like "vintage leather weekend bag under $200" returns what the buyer means.

Production ReadySub-second SLA
03 · DYNAMIC MARKETPLACE PRICING & TAKE-RATE OPTIMIZATION

Supply-and-Demand Pricing Suggestions

Reinforcement-learning models that suggest prices to sellers based on competing listings, how fast similar items clear and seasonal demand.

Production ReadySub-second SLA
04 · COLLUSION & ACCOUNT TAKEOVER BEHAVIORAL DEFENSE

Graph-Based Fraud Detection

Graph neural networks that study device fingerprints, IP networks and payment velocity to uncover fake review rings, card-testing laundering and seller collusion.

Production ReadySub-second SLA
MARKETPLACE FINANCIAL ENGINE · TRANSACTION SETTLEMENT

Multi-Vendor Escrow & Automated Split-Payout Pipeline.

How complex multi-merchant carts partition automatically across vendor ledgers, platform commissions, rolling escrow reserves, and state tax withholding without human intervention.

Step 01 · Cart Ingestion

Multi-Vendor Basket

A single buyer payment transaction partitions dynamically into discrete merchant orders, accommodating mixed shipping rates and carrier policies.

1-Tap Apple / Google Pay
Step 02 · Commission Split

Dynamic Take-Rate

Rules engine deducts platform commission, merchant tier discounts, and gateway fees in real time before funds ever touch settlement ledgers.

Stripe Connect & Adyen API
Step 03 · Trust Defense

Verified Escrow Hold

Funds remain locked until carrier tracking webhooks (FedEx, UPS, DHL) confirm physical delivery, mitigating dispute and chargeback exposure.

Zero Chargeback Exposure
Step 04 · Compliance

Payout & 1099-K / DAC7

Automated ACH/SEPA disbursal straight to verified merchant accounts with native state sales tax withholding and year-end automated filing.

100% Audit-Ready Ledger
99.999% ACID Ledger Precision
< 2s Instant Payout Settlement
Automated 1099-K & DAC7 Tax Compliance
FEATURED WORK & CASE STUDIES

Proven track record with industry leaders.

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CONSUMER SERVICES TRANSFORMATIONStandards we build to: PCI-DSS (card data handled through certified payment partners)100% Milestone Delivery

Service Tasker - find skilled professionals

Service Tasker App developed for the Australia market connects homeowners with verified local trade professionals for home maintenance, renovations, and emergency repairs.

Read Architecture Deep Dive
THE MARKETPLACE & TWO-SIDED PLATFORMS ADVANTAGE

Built by engineers who understand the operational reality of this industry.

We don't ship generic boilerplate software. Our architectures are modeled on the real physical constraints, low-latency protocols, and stringent compliance requirements of your vertical.

01ENTERPRISE ARCHITECTURE

Mission-Critical Reliability Under Load

Systems designed with distributed resilience, graceful offline degradation, and high-concurrency event brokers to eliminate outages during peak demand cycles.

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02REGULATORY COMPLIANCE

Compliance Built into the Core Schema

Architectures natively mapped to Standards we build to: PCI-DSS (card data handled through certified payment partners) and global data privacy standards, ensuring audit-readiness from day one.

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03INTEGRATION FLUENCY

Direct API & Hardware Peripheral Sync

Seamless integration with third-party aggregators, legacy ERPs, payment gateways, and hardware telemetry without fragile middleware layers.

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04OPERATIONAL UX

Frictionless Ergonomics for Field & Staff

High-contrast, responsive interfaces optimized for rapid keystrokes, touch terminals, and cross-platform mobile access in high-pressure operational environments.

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05PRIVATE AI GOVERNANCE

Deterministic AI with Complete Audit Trails

Predictive and generative AI workflows governed by human-in-the-loop review, strict confidence thresholds, and dedicated zero-retention private endpoints.

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06TOTAL IP OWNERSHIP

100% Contractual IP Ownership & Source Code

Every line of code, Docker file, CI/CD pipeline, and database schema belongs unconditionally to your organization from the first commit.

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— MARKETPLACE & TWO-SIDED PLATFORMS ARCHITECTURAL FAQS

Answers for CTOs, Operations Heads, and Enterprise Founders.

We integrate with Stripe Tax, TaxJar or Avalara. Tax is calculated and attributed by seller nexus and buyer delivery location, in line with US marketplace facilitator rules and EU VAT requirements. Your tax adviser should still confirm your exact obligations.
PROCESS

Idea to Market–Ready Product

We turn your idea into a secure, compliant, and test-ready product in weeks, not months.

STAGE
STAGE
STAGE
STAGE
STAGE
STAGE
Day 1 – 2

Inquiry & Scoping

We rapidly decompose requirements, pressure-test commercial viability, and align technical scope before capital is committed.

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AI Advisor