Vector

A crypto trading platform rebuilt from a non-functional prototype into a working product with authentication, exchange connectivity, strategy execution, and live trading flows.

ARG rebuilt Vector from a non-functional prototype into a working trading platform. The client arrived with an interface that looked complete but had no authentication, transaction flow, or live exchange activity, so we rebuilt the backend foundation, connected the frontend to real functionality, and implemented the systems needed for automated trading.

Category
Fintech
Client
Liminality Labs
Featured engagement
6 Months
Technology
MikroORM, Next.js, Kafka, PostgreSQL, Docker, Nx, Webpack, NestJS

Services

  • Backend Rebuild
  • Authentication
  • Exchange Integrations
  • Trading Automation

What had to be solved

Vector arrived as a prototype that looked complete on the surface but could not operate as a trading product. Authentication was missing, transaction flows were not functional, the frontend was not connected to real backend behavior, and exchange activity could not be executed.

The challenge was to rebuild the product foundation without discarding the intended user experience. The platform needed secure user access, exchange integrations, automated strategy execution, and live trading flows that could turn an illustrative interface into working financial software.

How we made it work

  • Rebuilt the backend foundation around functional trading flows and secure user authentication
  • Connected the frontend to real backend behavior so the interface could move beyond static screens
  • Implemented exchange integrations for live trading activity
  • Built transaction flows for automated buy and sell execution based on strategy conditions
  • Added strategy-management functionality so users could configure or subscribe to trading logic
  • Supported QA around authentication, exchange behavior, trade execution, and dashboard state

Results

Vector moved from a non-functional prototype to a working trading platform with authentication, live exchange connectivity, automated transaction flows, and a frontend connected to real product behavior.

  • <10 ms Average production execution time
  • 5+ Exchange integrations delivered
  • 24/7 Production monitoring