Industry · Marketplaces
Marketplace software development and QA
Hashorn supports marketplace founders and operators with senior product engineering and QA automation across supply onboarding, discovery, transactions, payouts, trust and safety, and customer support tooling. Marketplaces are uniquely hard to get right and we treat them as such.
Market context
How Marketplaces teams actually work
Why our delivery model is shaped for this market.
Marketplaces are won on liquidity, not features. We build the few features that move liquidity, not a long backlog.
Trust and safety, dispute handling, and payout reliability are existential for marketplaces.
Search and ranking quality is a product, not a feature. We treat it as one.
Compliance
What we factor into delivery
Regulatory and audit considerations we treat as first-class engineering constraints.
GDPR and CCPA-aware buyer and seller data handling.
Payments and payout compliance through Stripe Connect, Adyen for Platforms, or local equivalents.
Trust and safety frameworks aligned with platform-liability requirements.
Who we work with
Typical buyers
Seed to Series B marketplace founders.
Established marketplaces expanding into new categories or geographies.
Enterprise marketplaces inside larger commerce or services businesses.
Use cases
What we build and test
Supply-side onboarding and verification flows.
Search, ranking, and discovery with explicit relevance evaluation.
Transaction flows with escrow, holds, and dispute handling.
Payouts and reconciliation via Stripe Connect, Adyen for Platforms, or local equivalents.
Trust and safety tooling — moderation, fraud signals, banlist management.
QA automation for transactions, payouts, and trust workflows.
Services
Most relevant services for Marketplaces
FAQ
Questions clients ask before we start.
Building in Marketplaces? Let's talk.
Tell us what you're building, we'll tell you how we'd ship it.