InApps Technology
Marketplace & Platform industry illustration
Two-Sided Platforms, Aggregators & Commerce Engines

Software Engineering for Marketplace Platforms

Build scalable, trust-driven marketplace platforms, from two-sided B2C marketplaces and service aggregators to B2B procurement portals. We engineer the matching, payments, reviews, and logistics that power platform economics.

$10M+annual GMV processed on platforms we built

The Challenges We Solve

We have worked across dozens of marketplace & platform projects. These are the pain points we hear most, and know how to fix.

Chicken-and-egg supply/demand problem: platform must attract both sides simultaneously

Payment escrow, split payments, and multi-party settlements add regulatory complexity

Search relevance and matching algorithms directly impact GMV and user retention

Trust and safety (reviews, dispute resolution, fraud) must be built from day one

Scaling from 100 to 100K listings requires re-architecting search, feeds, and notifications

Our Marketplace & Platform Solutions

From product strategy to production deployment, our dedicated teams cover the full engineering lifecycle.

Two-Sided Marketplace Engineering

End-to-end platform architecture for buyer/seller marketplaces, user onboarding, listing management, search with faceted filters, booking/cart flows, and review systems. We have shipped marketplaces processing $10M+ GMV annually with 50K+ active users.

Payment Orchestration & Escrow

Stripe Connect, PayPal for Marketplaces, and custom escrow solutions. We handle split payments, platform commissions, refund workflows, payout schedules, and 1099/tax reporting. PCI DSS compliant payment flows from day one.

Search, Matching & Recommendation

Elasticsearch-powered product/service search with ML-driven relevance ranking, geo-proximity matching, price intelligence, and personalized recommendation feeds. We optimise for conversion rate, not just result count.

Trust, Safety & Dispute Resolution

Identity verification (KYC for high-value platforms), review moderation, automated fraud detection, dispute resolution workflows, and content policy enforcement. Built to scale from launch to millions of transactions.

🏪 Platform Compliance

PCI DSS, KYC & Consumer Protection

Marketplace compliance is jurisdiction-specific. We architect configurable compliance modules that adapt to local regulations as you expand into new markets: EU, US, APAC: without rebuilding core platform logic.

PCI DSS Level 1 for payment card processing and escrow accounts

KYC/AML compliance for high-value or financial marketplace transactions

GDPR / CCPA consumer data protection and consent management

Digital Services Act (DSA) transparency and content moderation obligations

Platform liability and consumer protection regulations per jurisdiction

Relevant Tech Stack

Technologies our marketplace & platform engineering teams work with daily.

React
Next.js
Node.js
Python
PostgreSQL
Elasticsearch
Redis
Stripe Connect
AWS
Kafka
Algolia
SendGrid

Case Studies

Explore our work in the marketplace & platform sector.

Frequently Asked Questions

What types of marketplaces have you built?
We have built service marketplaces (healthcare, home services), product marketplaces (e-commerce, wholesale), rental platforms (equipment, vehicles), and B2B procurement portals. Our largest marketplace processes $1.2M+ monthly GMV with 200+ vendors.
How do you handle the cold-start / chicken-and-egg problem?
We build supply-side tools first (easy onboarding, bulk listing import, inventory sync) to attract sellers, then focus on demand-side features (search, recommendation, promotions). We also engineer referral programs, launch incentives, and managed marketplace features to bootstrap liquidity.
Can you integrate with Stripe Connect or PayPal for Marketplaces?
Yes. We are experienced with Stripe Connect (Standard, Express, Custom accounts), PayPal for Marketplaces, and custom escrow implementations. We handle onboarding flows, KYC verification, split payments, and automated payout schedules.
How do you handle search and relevance at scale?
We use Elasticsearch with custom scoring models, geo-proximity ranking, and behavioural signals (click-through rate, conversion rate) to continuously improve relevance. For product marketplaces, we integrate Algolia for real-time search-as-you-type.

Trusted by Engineering Teams Across 15+ Countries

Jollibee logo – InApps Technology client
KFC logo – InApps Technology client
Lotte logo – InApps Technology client
Prudential logo – InApps Technology client
Future Processing logo – InApps Technology client
Pegas Touristik logo – InApps Technology client
Mega Market logo – InApps Technology client
Haivanship Towage and Shipping Agency logo – InApps Technology client
Stremium logo
Two-Raw-Sisters-logo
InApps-Tessa-logo
Jollibee logo – InApps Technology client
KFC logo – InApps Technology client
Lotte logo – InApps Technology client
Prudential logo – InApps Technology client
Future Processing logo – InApps Technology client
Pegas Touristik logo – InApps Technology client
Mega Market logo – InApps Technology client
Haivanship Towage and Shipping Agency logo – InApps Technology client
Stremium logo
Two-Raw-Sisters-logo
InApps-Tessa-logo

Ready to build your marketplace & platform product?

Talk to an InApps ODC consultant. We will scope your project, recommend a team structure, and have engineers interviewing within 5 business days.