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BEATOZ Treasury - Treasury Operations Platform

Treasury Infrastructure

System Description

Solo-built treasury operations monorepo for transfer, FX, reserve, settlement, and monitoring workflows. Combines a NestJS API, Next.js admin and testbench apps, Kafka ingress/outbox handling, and single-instance deployment automation.

Technologies

TypeScriptNestJSNext.jsPrismaPostgreSQLKafkaJSReactDockerAWS
BEATOZ Treasury - Treasury Operations Platform
ROLE: SOLO_DEVELOPERDOMAIN: BLOCKCHAIN
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PROBLEMThe Challenge

Needed treasury transfer, FX, reserve, and settlement flows to remain consistent across synchronous APIs and Kafka-driven ingress while preserving idempotency, DLQ replay, operator visibility, and deployability on a constrained single-instance environment.

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SOLVEDThe Solution

Built domain modules for bank/fx/ledger/reserve/transfer/monitoring/treasury-consumers, enforced idempotency and problem-details responses at the API boundary, added Kafka consumer + DLQ replay services and settlement reconciliation schedulers, shipped admin/testbench apps, and automated single-instance AWS deployment with PM2/Nginx/Postgres setup.

Scope

Solo-built treasury operations monorepo for transfer, FX, reserve, settlement, and monitoring workflows. Combines a NestJS API, Next.js admin and testbench apps, Kafka ingress/outbox handling, and single-instance deployment automation.

Proof

No public proof artifact is registered for this project.

SYSTEM_COMPONENTS

Treasury API

Core Operations Backend

Tech Stack

NestJSPrismaPostgreSQLKafkaJS

Highlights

  • →Idempotent transfer/FX/reserve APIs
  • →Problem-details error contract
  • →Settlement reconcile flows

Admin Web

Operations Dashboard

Tech Stack

Next.jsReactTypeScript

Highlights

  • →Reserve and monitoring views
  • →Transfer and settlement operations
  • →OpenBanking integration screens

Testbench + Mock Services

Flow Validation

Tech Stack

Next.jsNode.jsKafka

Highlights

  • →Scenario runner UI
  • →Billing/cross-border mock producers
  • →Kafka smoke and DLQ replay verification
Technical Deep Dive

Overview

  • ▶Solo-built treasury operations monorepo covering transfer, FX, reserve, settlement, and monitoring workflows.
  • ▶Includes an API, operator-facing dashboards, a scenario testbench, mock producers, and deployment scripts.

Key Components

Treasury API

  • ▶NestJS modules for bank, FX, ledger, reserve, transfer, monitoring, and treasury consumer ingress
  • ▶Problem-details filter + idempotency interceptor with in-memory/Prisma-backed stores
  • ▶Reconcile endpoints and scheduler hooks for settlement state management

Kafka Ingress & Replay

  • ▶Billing/cross-border ingress handlers for transfer, reserve movement, and FX execution
  • ▶DLQ publishing, replay control endpoints, replay status/recent history, and worker lock coordination
  • ▶Smoke scripts for Kafka ingress, outbox transaction flow, and DLQ replay validation

Admin + Testbench

  • ▶Next.js admin app for monitoring, reserve, FX, transfers, settlements, and operations views
  • ▶Next.js testbench app for running scenarios, inspecting logs, and exporting flow history
  • ▶Mock billing/cross-border services to validate consumer-driven workflows

Deployment & Operations

  • ▶Single-instance AWS deployment script with Postgres, PM2, and Nginx wiring
  • ▶Environment bootstrapping for API, admin, and testbench apps
  • ▶Default bank-account seeding and profile-based deploy options for test/dev