Custom trading platforms, built end to end

What a custom trading platform includes

Every platform is different, but most share the same building blocks. In the scoping call we agree which ones your first version needs and which can wait until users ask for them.

• Client web app: charts, watchlists, order tickets, positions and P&L, built in React and TypeScript
• Order management: order states, fills, cancels and rejects tracked against your broker or exchange of record
• Market data pipeline: WebSocket streams with reconnection, throttling and snapshot recovery
• Accounts and access: sign-up, roles, teams, subscriptions and encrypted API-key storage with trade-only permissions
• Strategy and signal layer: your own rules, TradingView alerts or bots, each with a paper mode and a live mode
• Admin and risk tools: user management, exposure views, a kill switch, an audit log and alerts
• Notifications: email, Telegram or WhatsApp messages for fills, errors and risk events

Who we build for

Trading educators and signal providers who want their own platform instead of a group chat: a members area, signal dashboards, alerts delivered to Telegram or Discord, and optional copy trading for subscribers.

Fintech founders building a first product on a broker or exchange API, who need a working MVP to put in front of users and investors.

Prop desks and small brokers who need internal dashboards, risk monitoring or client portals on top of the systems they already run.

Funds and active traders who want private tools for execution, backtesting, monitoring and reporting, owned outright instead of rented by the month.

Build on a broker API instead of becoming a broker

Most new trading products don't need their own brokerage licence. Brokers such as Alpaca and Interactive Brokers, and crypto exchanges such as Binance, Kraken and Coinbase, offer APIs for accounts, orders and market data. Your platform owns the product experience; the licensed firm holds client accounts and executes the orders.

That decision shapes cost and timeline more than any feature list, so we settle it first: which broker or exchange, which account model (your own accounts, client accounts or read-only connections), and which markets you need at launch.

The integration sits behind a normalized layer, so adding a second broker or exchange later doesn't mean rewriting the app. Regulatory obligations stay with you and your broker; we flag what the broker's API terms require as we build.

How a build runs

You work directly with the developer who writes the code, from the first call to launch day. Each step ends with something you can see and approve.

• Scoping call and written spec: version-one features, the broker or exchange, and a fixed quote split into milestones
• Architecture and clickable screens before the heavy build, so the product is agreed early
• Milestone builds on a staging environment, with a demo at the end of each milestone
• A paper-trading phase on live market data before any real order is sent
• Launch on your own cloud account with monitoring, alerts and a rollback plan
• Handover: source code in your repository, deployment notes and a walkthrough, with support after launch if you want it

The stack

React, TypeScript and Tailwind on the front end; Node.js and Python services on the back end; PostgreSQL and Supabase for data; WebSockets for live prices; and the broker and exchange APIs your product needs. It is the same stack behind PulseTrader and AITrading247.

Real-time features are designed for volatile markets, not calm ones: batched UI updates, back-pressure on data streams, and order state that survives a dropped connection.

Testing covers the parts that cost money when they fail. Order handling, reconciliation and risk limits get automated tests, and every release goes through staging before it reaches production.

What to bring to the scoping call

You don't need a full specification. A short brief makes the first call far more useful, and it is the fastest route to a fixed quote. Bring whatever you have of the following:

• Who the platform is for, and what they should be able to do in their first five minutes
• The markets and instruments at launch: equities, options, futures, forex or crypto
• The broker or exchange you want to use, or the shortlist you're choosing from
• How users connect: through your accounts, their own broker accounts, or read-only data
• Any strategy, signal or indicator logic the platform has to run, written down as far as you can take it
• Products you like, including competitors, and what you would change about them
• Your launch date, and whether a paper-trading beta should come first

Based in India, working with clients worldwide

TJ Automations is run by TJ Alam from India, with clients in the UK, the US and Europe. Calls are booked in your working hours, quotes are written and fixed before work starts, and an NDA is available on request. Track record: 493 reviews on Fiverr with a 4.9★ average.

You get senior engineering without agency overhead: no account managers between you and the code, and no handoff to a junior team after the sale.