CASE 03 / 04 · cross-chain web application

Oracler V2

Cross-chain web application
PERIOD
07.2025 — 11.2025
ROLE
Architecture & tech lead
TEAM
3
STACK
Next.js · NestJS · PostgreSQL · Redis · Docker · CI/CD
[ screenshot — oracler.co — swap screen ]

One unified experience to swap and send tokens across multiple chains — integrating third-party services while staying fast, stable and ready to scale in production.

What I did

  • Led system architecture and set the technical direction for a production-ready cross-chain app.
  • Owned the core swap & send flows with strict, accurate business-logic handling.
  • Built CI/CD pipelines and the cloud deployment strategy for reliable releases and monitoring.
  • Reviewed and guided the team to hold the bar on quality, performance and security.

01 Problem

Moving tokens across chains means juggling bridges, aggregators and wallets — each with its own flow, fees and failure modes.

02 Approach

One swap & send flow on top of third-party providers, a NestJS API with Redis caching, PostgreSQL for state, and CI/CD with monitoring for safe releases.

03 Result

A production cross-chain app, live at oracler.co. [add a metric if you can share one]

decision.mdKey technical call

One adapter layer for every provider

Quotes and routes from each provider are normalized behind a single internal interface, so providers can be added or swapped without touching the core swap logic.