Node.js Trading Bots & API Integration
Your rules automated in Node.js: orders, positions and live data through broker and exchange APIs over REST and WebSocket.
JavaScript · TypeScript · Node.js
JavaScript Trading Developer — Node.js Bots & Trading Web Applications
Hire a JavaScript trading developer for Node.js trading bots, broker and exchange API integration, trading dashboards and signal automation — plus custom indicators for Tradovate.
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Clear Scope, Price & Timeline
Source Code & IP Ownership
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Service overview
JavaScript Development for Trading Automation & Web Tools
Node.js applications, browser-based trading tools and custom Tradovate indicators.
Nordman Algorithms writes JavaScript trading software for traders, prop traders, small funds and trading teams. Our JavaScript trading developers work from your rules, a written specification or just a plain description — or from an existing Node.js project in JavaScript or TypeScript that needs finishing, fixing or extending.
Node.js runs the automation: bots, broker and exchange connections, incoming signals and trade copying. Browser-based tools — scanners, analytics panels, charts or bot control — can work on their own or connect to an existing trading system. On Tradovate, JavaScript also powers custom indicators on charts and the DOM.
Trading control panelWeb app
Bots
Breakout ESRunning
Mean Reversion NQRunning
Crypto MomentumPaused
Positions
ES 12-26Long 2+$425.00
NQ 12-26Short 1−$130.00
Execution log
14:05:01Breakout ES · Buy 2 filled at 5,412.50
14:05:01Stop and target placed
14:06:20Mean Reversion NQ · position synced
Browser panel for bots running on a serverIllustrative
New development
What We Build in JavaScript
Bots, web tools, signal automation and Tradovate indicators, written by our JavaScript trading programmers from your rules.
Trading Dashboards & Web Tools
Browser panels for positions and P&L, bot control, charts, scanners and monitoring of running trading systems.
Signal Automation & Trade Copiers
External signals such as TradingView alerts received and executed through an API, and trades copied between accounts where the API allows it.
Tradovate Indicators & Conversion
Custom indicators for Tradovate charts and the DOM, and indicators moved to Tradovate from thinkorswim, Pine Script, EasyLanguage or NinjaScript.
Working with existing code
JavaScript Code Services
A JavaScript trading developer working on the bots and trading tools you already have.
JavaScript Code Modification
New rules, inputs, data sources, connections and interface elements added to an existing Node.js bot, trading web tool or Tradovate indicator, without changing what already works.
For example
- New strategy rule
- New broker connection
- Panel features
- Tradovate indicator changes
Debugging & Reliability Fixes
Dropped connections, signals executed twice, positions that drift out of sync with the account, indicators that show incorrect values — traced to the cause and fixed.
For example
- Dropped connections
- Duplicate signals
- Position mismatches
- Incorrect indicator values
Optimization & Refactoring
Live data processed without falling behind, faster web interfaces, and tangled code reorganised into parts that are easier to maintain.
For example
- Faster data handling
- Responsive interface
- Cleaner structure
- Fewer moving parts
API Updates & Migration
Integrations updated when a broker or exchange changes its API, outdated libraries replaced, and existing connections moved to a new API or provider.
For example
- API version changes
- Authentication changes
- Library updates
- New provider
Development process
How a JavaScript Trading Project Works
We agree the rules, the APIs and where the software will run, and the acceptance checks with you before any code is written. Testing covers the agreed scenarios, error handling and reconnection, using a demo or test environment for trading integrations where one is available.
Project workflow
STEP 01
Rules or Code
Description · existing code · screenshots
STEP 02
Scope & Setup
APIs · accounts · where it runs
STEP 03
Fixed Quote
Scope · price · delivery schedule
STEP 04
Development
JavaScript · Node.js · web UI
STEP 05
Testing
Trading logic · API behaviour · interface checks
STEP 06
Delivery & Support
Source · setup · guidance
To Get Started
Send a description of the rules or the tool, the broker or exchange you use, and the existing code if there is any.
Rules or Tool DescriptionBroker or ExchangeExisting CodeScreenshots
At Delivery
Receive the full JavaScript source and setup instructions — plus installation on your server where the project includes it. We walk through the specified behaviour and provide technical support under the agreed terms.
JavaScript SourceSetup GuideInstallation if agreed
Why Nordman Algorithms
Why Work With Nordman Algorithms
Work with JavaScript trading programmers who build bots, trading tools and the connections between them.
Experience Across Platforms
We also build in Python, C#, Pine Script and NinjaScript, so a JavaScript tool can work with the rest of your trading setup.
Trade Copiers of Our Own
We build and sell our own trade copiers, so signal execution and multi-account copying are familiar ground.
See our trade copiers →Clear Scope and Pricing
Requirements, deliverables, fixed price and acceptance examples are agreed before development begins.
NDA and IP Ownership
An NDA is available on request. Source code and full IP ownership are transferred on delivery.
Support After Delivery
Setup help, configuration questions and technical answers within the agreed support scope.
reviews
What Clients Say
Feedback from clients across our custom trading software projects.
★★★★★
Trustpilot
4.7
★★★★★
"Dear traders, when it comes to software quality and trust and professionalism, Nordman is the right choice for you. I can only say it's a pleasure to do business with them. I wholeheartedly recommend Nordman."
★★★★★
"I've worked with Nordman on several projects, and he's always perfectly met my expectations in terms of delivery time and budget. His work is fantastic and very professional."
★★★★★
"Nordman Algorithms - 5 Stars Nordman Algorithms are a very reputable company whom deliver a high quality service. I have been working with Alexei on many projects during 2024 and very satisfied with the services, product and after sales."
FAQ
JavaScript Trading Development Questions
Practical answers about JavaScript trading bots, web tools and APIs.
Yes. We go through the existing code first, then add rules, data sources, connections or interface features — and fix what is unreliable along the way.
Usually, yes. The bot needs a way to share its state — an API, a database or a message channel. If it has none, we add one, then build the panel on top of it.
Brokers and exchanges that offer a REST or WebSocket API, such as Tradovate, Alpaca and major crypto exchanges. We confirm what your account and API access allow before development starts.
Bots usually run on a VPS or cloud server; web panels open in the browser from that server or your own hosting. If deployment is agreed, we set it up there.
Yes. Tradovate indicators are written in JavaScript and run on charts and the DOM; we build new ones and move indicators from thinkorswim, Pine Script, EasyLanguage or NinjaScript. Automated trading on Tradovate runs outside the platform, through its API.
Yes. You receive the full JavaScript source and setup instructions. Source code and full IP ownership are transferred on delivery.
Tell Us About Your JavaScript Project
Send your rules or a description of the tool, and the broker or exchange you use. We will check it and propose the scope and next steps.
Free technical assessment
Clear scope before development
Post-delivery support