Live · productionCase study

Production FinTech & Trading Systems

Professional FinTech work: the RTX 5 Web Terminal traders use in the browser, CRM and back-office workflows, trading analytics, and real-time market-data integrations.

Open live terminal

The trading terminal is public. CRM, back-office and backend code, internal URLs and system details are private and not shown here.

Role: Software Engineer with technical ownership across projects
When: 2026 — Present
Status: The RTX 5 Web Terminal is live at webterminal.orrnn.com. CRM and platform work continues in production.

RTX 5 Web Terminal: market watch with live bid and ask prices, a BTCUSD candlestick chart with one-click sell and buy, and the trade toolbox

Context

The problem

A trading business runs on software that handles real accounts and real money: onboarding and KYC, wallets and transactions, live market data and trading tools. It has to stay correct and available while markets move.

Solution

What I built

I built the frontend of the RTX 5 Web Terminal, a MetaTrader-style trading terminal that runs in the browser. Around it I work across CRM and admin workflows, trading analytics, real-time market data over WebSockets and FIX 4.4, and the production debugging that keeps it running.

Live product

RTX 5 Web Terminal

A MetaTrader-style trading terminal that runs in the browser, with streaming prices and one-click trading. The same frontend also runs as a desktop app.

RTX 5 Web Terminal on a phone with a chart and one-click sell and buy — Phone

Market watch with streaming bid and ask prices
Candlestick charts across nine timeframes, M1 to MN
One-click sell and buy with volume control
Drawing tools and chart controls
Navigator for accounts, indicators, automated strategies and scripts
Toolbox for trades, history, exposure, news, calendar, alerts and the journal
Multi-language interface
Live connection to the trading backend over WebSockets

Frontend stack (from the public build)

React
Vite
Zustand
WebSockets
i18next
Canvas
Web Workers

Open RTX 5 Web Terminal

Architecture

How it fits together

Interfaces
RTX 5 Web Terminal
React · WebSockets · charts
Client & admin apps
auth · OTP · KYC flows
Back office
CRM
accounts · wallets · transactions
Analytics
journal · risk metrics
APIs & real-time
REST + WebSockets
Node.js · TypeScript
Market data
FIX 4.4 · ticks · OHLC
Data & infra
PostgreSQL · Prisma
Redis
Gateway & ops
Rust · C++ · Nginx

Where my work sits. Simplified, not a system map.

Engineering

Key engineering work

Frontend of the RTX 5 Web Terminal: streaming quotes, candlestick charts from M1 to MN, one-click trading and account panels, connected to the trading backend over WebSockets.
CRM functionality for users, trading accounts, KYC, wallets, deposits, withdrawals, transactions and admin workflows.
Trading interfaces in React, Next.js and TypeScript: multi-timeframe OHLC charts, symbol switching and live chart updates over WebSockets and FIX 4.4.
Trading-journal analytics: win rate, profit factor, expectancy, risk-to-reward, maximum drawdown, reports, CSV export and Monte Carlo simulation.
Work across PostgreSQL, Prisma, Redis, REST APIs, and Rust, C++ and Node.js components in gateway and trading-system integrations.
Production debugging: HTTP 429/502 errors, authentication, WebSockets, PostgreSQL, Nginx, gateway connectivity and environment configuration.
Investigation of copy-trading execution across the open/close/modify order lifecycle, queues, retries and reconciliation.
Security review that led to server-side validation and clear trust boundaries for a client-trusted check.

Technology

Stack

React
Next.js
TypeScript
Tailwind CSS
Zustand
Node.js
PostgreSQL
Prisma
Redis
WebSockets
FIX 4.4
RTX5 / MT5 ecosystem
Rust
C++
Nginx

Status

Where it stands

The RTX 5 Web Terminal is live at webterminal.orrnn.com. CRM and platform work continues in production.

Open live terminal