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Interactive Brokers · TWS API

Interactive Brokers Developer — Custom IBKR Development

Hire an Interactive Brokers developer for automated trading strategies, strategy backtesting, portfolio rebalancing, signal automation and trade copiers — built as external software and connected to your account through the TWS API or another supported IBKR interface.

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    Service overview

    Custom Software for Interactive Brokers Accounts

    From a trading idea or existing application to a connected IBKR solution.

    Nordman Algorithms develops external trading software for Interactive Brokers: automated strategies, execution tools, scanners, reporting, and integrations. Your application contains the custom logic; a supported IBKR interface provides access to the account, data, and order operations required by the project.

    Our Interactive Brokers programmers start with your trading rules, target instruments, account setup, and existing systems. We select the connection method around those requirements and define how the software handles order updates, connection interruptions, and operating sessions.

    Portfolio allocation · target 25% each · ±3% bandTWS API
    4sleeves
    EquitiesUS & EU stocks34%+9Trim
    ETFsIndex & sector27%+2Hold
    FuturesIndex & commodity13%-12Add
    OptionsHedging overlay26%+1Hold
    Dashes mark the target weight · drift inside the band is left aloneIllustrative example
    Connection options

    IBKR API & Connectivity

    Different interfaces for different requirements. We help select the appropriate route before development begins.

    01

    TWS API Development

    Socket connection through TWS or IB Gateway

    Connect custom applications to a running Trader Workstation or IB Gateway session for trading, market data, and account information. The same TWS API can use either host; the choice depends on whether you also need the full trading interface.

    Python / C#Socket session
    TWS or IB Gateway? →
    02

    IBKR Web API Integration

    REST requests and WebSocket streams

    Connect applications using IBKR’s HTTP and streaming interfaces. Authentication, session requirements, and endpoint access are selected for the account and integration type. This is a separate connection option from the TWS API.

    RESTWebSocket
    REST API integrations →
    03

    IBKR FIX / CTCI Integration

    Specialized order-routing integration

    Integrate an existing order or execution system through IBKR’s FIX connectivity where the account and access requirements fit. FIX access needs a separate integration review; market data must come from another suitable interface or feed.

    Order routingExisting systems
    FIX protocol integration →

    Account permissions, market-data subscriptions, authentication, and available API functions are checked during the technical assessment.

    Development services

    What We Build for Interactive Brokers

    Choose the result you need: a trading system, a focused tool, or a connection to software you already use.

    Core Development Services

    Trading systems, testing, portfolios & connections

    IBKR Algorithmic Trading & Trading Bot Development

    Build a custom trading system around your entry and exit rules, position sizing, instrument selection, and session logic. Python or C# applications calculate decisions and manage orders through the selected IBKR interface.

    IBKR Strategy Backtesting

    Test your strategy in an external historical simulation using suitable IBKR or third-party data. Define commissions, slippage assumptions, trading sessions, and execution rules, then review trade logs and performance metrics against the agreed test scope.

    IBKR Portfolio Rebalancing Automation

    Translate target weights and allocation rules into a controlled rebalancing workflow. Calculate proposed adjustments, account for available cash and position constraints, and submit orders on a schedule, at drift thresholds, or after your approval.

    IBKR Signal Automation & Signal Copier Development

    Turn TradingView alerts, Telegram or Discord messages, webhooks, and accessible API signals into validated IBKR order instructions. Include instrument mapping, sizing rules, duplicate-signal handling, and execution feedback.

    IBKR Trade Copier Development

    Copy trading activity into or out of IBKR and between supported accounts or platforms. Define instrument mapping, quantity ratios, order updates, and position reconciliation around the interfaces available on both sides.

    IBKR Prop Trading Automation

    Develop custom automation for proprietary trading workflows on IBKR, including strategy execution, session controls, exposure limits, loss-limit actions, monitoring, and trader-specific rules. Implementation depends on the account structure, API permissions, and the firm’s trading requirements.

    Third-Party API & Data Integration

    Connect an existing application, analytics model, risk system, database, or reporting workflow to Interactive Brokers. Combine IBKR data with external market, historical, news, or fundamental feeds when your requirements call for them.

    Additional Tools & Integrations

    Interfaces, panels, scanners & reporting

    IBKR Trade Panel & Trade Manager Development

    Create focused order-entry panels and position-management tools: sizing, order templates, bracket controls, partial closes, and rule-based exits. Add the workflow you need alongside TWS, including automated management of existing positions.

    IBKR Scanner & Dashboard Development

    Find and monitor instruments with custom filters, ranked watchlists, technical conditions, and alerts. Combine available market data with positions, orders, and live account metrics in a desktop dashboard built for your workflow.

    IBKR Reporting & Analytics Automation

    Automate retrieval and processing of account reports, executions, and portfolio records. Use suitable API data and configured Flex reports for custom P&L calculations, performance analysis, scheduled exports, and reconciliation with your own records.

    Have an Interactive Brokers task that is not on this list?

    Not every requirement fits a predefined category. Send a description, reference files, or existing Python or C# source code — we will review it and tell you what is possible through the IBKR interfaces and what it would take.

    Discuss Your IBKR Project
    development process

    How Your IBKR Project Works

    An Interactive Brokers developer takes the project from initial requirements to delivery in six clear steps. Scope, price, and timeline are agreed before development begins.

    Project workflow
    STEP 01
    Technical Assessment
    Trading rules · account access · target instruments · data · existing systems
    STEP 02
    Requirements & Scope Definition
    Functions · order behaviour · sizing · risk rules · exceptions
    STEP 03
    Fixed Quote
    Price · scope · timeline agreed before development
    STEP 04
    Architecture & Development
    API selection · application logic · interface · integration
    STEP 05
    Testing & Fine Tuning
    Strategy scenarios · API responses · paper-account checks where supported
    STEP 06
    Delivery & Support
    Project files · source code · setup assistance · technical support
    To Get Started

    A complete technical specification is not required. Send whatever material you already have; we clarify the remaining requirements with you during the assessment.

    Trading Rules / Project DescriptionScreenshots / ExamplesExisting Code / ApplicationIBKR Account & InstrumentsData / API Requirements
    At Delivery

    The exact project files and delivery scope are confirmed before development begins.

    Project Source CodeCompiled / Build Files Where ApplicableInstallation & Setup AssistancePost-Delivery Technical Support
    Technology & connectivity

    IBKR Development Technologies & Interfaces

    The connectivity block above answers which interface suits a project. This one answers what we build with each — the software, the workflows, and where each interface earns its place.

    What we build in Python

    Python

    IBKR trading applications written in Python: strategy execution and order management, portfolio and rebalancing tools, scanners, scheduled jobs, and the data handling around them.

    Strategy executionPortfolio toolsScanners
    Explore Python →
    What we build in C#

    C# / .NET

    Desktop applications and background services for IBKR accounts — trade panels, monitoring tools, and components that run beside software you already use.

    Trade panelsMonitoringIntegrations
    Explore C# / .NET →
    What we do over HTTP

    REST API

    Connecting an existing application to an IBKR account, placing and amending orders, reading positions and balances, and keeping an external system in step with the account.

    App integrationOrder placementAccount sync
    Explore REST API →
    What we do with streaming

    WebSocket API

    Keeping software current as things change: order and execution updates delivered as they happen, position state kept in sync, and realtime data handled where the account is entitled to it.

    Order updatesState syncLive data
    Explore WebSocket API →
    Where FIX fits

    FIX Protocol

    High-volume order flow and execution reporting over a FIX session, including session management and recovery. Connectivity is arranged with IBKR and carries its own requirements.

    High-volume flowExecution reportsEligibility & onboarding
    Explore FIX Protocol →
    What the socket API adds

    IBKR TWS API

    A broad trading and market-data interface through TWS or IB Gateway — contract search, historical bars, market depth and complex order types among them. Software built on it runs alongside a logged-in session, so daily restarts, reconnection and gateway supervision are part of the work.

    Broad trading accessHistorical & depth dataSession supervision
    Markets

    IBKR Development Across Financial Markets

    Interactive Brokers provides access to markets across a large global exchange network from one account. Which instruments a project can trade follows the trading permissions on your account; market-data access is arranged separately and can also come from an external provider.

    Listed equity markets

    Stocks & ETFs

    Scanners that filter on your own conditions, trading systems around entry and exit rules, and portfolio rebalancing across equity and ETF holdings.

    Stock Automation →
    Listed options trading

    Options

    Contract selection from the chain, analytics on the positions you hold, and position management including rolls, adjustments and multi-leg structures.

    Options Automation →
    Exchange-traded contracts

    Futures

    Execution logic built around contract specifications and session hours, with rollover between expiries handled as part of the strategy rather than by hand.

    Futures Automation →
    Currency markets

    Forex

    Automation of currency strategies with pair selection, position sizing and exposure controls across the balances the account holds.

    Forex Automation →
    Digital asset markets

    Crypto

    Trading logic for the digital assets available in your account, with pair selection, sizing rules and the same exposure controls as the rest of the portfolio. Availability depends on account eligibility, region and the supported crypto provider.

    Crypto Automation →
    Why Nordman Algorithms

    Why Work With Nordman Algorithms

    IBKR development planned around the trading workflow, connection requirements, and delivery scope of your project.

    Built on the IBKR Interfaces

    TWS API, Web API and FIX behave differently and grant different permissions. We work with all three, so scope matches what your account allows.

    Built Around Your Environment

    Your instruments, account permissions, data sources, existing applications, and operating requirements are considered from the start.

    Clear Scope and Pricing

    Requirements, project scope, milestones, price, and expected delivery are agreed before development begins.

    NDA and IP Ownership

    Confidential project discussions, source code delivery, and intellectual-property terms are agreed for the project.

    Support After Delivery

    Receive setup guidance, technical clarification, and the agreed post-delivery support for your IBKR application.

    reviews

    What Clients Say

    ★★★★★
    Trustpilot
    4.7

    Client feedback on Nordman Algorithms projects across trading platforms.

    ★★★★★
    "Alexei understood exactly what I needed for my NinjaTrader strategy. Delivered on time, clean code, and took the time to walk me through the installation. Will use again."
    MR
    Mark R.
    Trustpilot review
    ★★★★★
    "Complex MT5 trade copier across 3 accounts — different brokers, different symbols. Nordman mapped everything perfectly. Support after delivery was excellent."
    SP
    Stefan P.
    Trustpilot review
    ★★★★★
    "Built a risk-controlled EA according to the specification. The logic was clear, the communication was professional, and the final version matched the requested workflow."
    JK
    James K.
    Trustpilot review
    FAQ

    Interactive Brokers Development Questions

    Practical answers about custom IBKR software, API access, testing, and project delivery.

    Trader Workstation (TWS) is the full trading application. The TWS API is the programming interface used by external software to exchange data and order instructions with IBKR. IB Gateway is a lighter alternative host for the same API. Both TWS and IB Gateway require an authenticated session; the choice depends on how you want to run and monitor the software.

    No. IBKR Web API uses HTTP and WebSocket interfaces with its own access, authentication, and session requirements. The TWS API uses a socket connection through TWS or IB Gateway. Client Portal Gateway, used in some Web API setups, is different from IB Gateway. We select the route after reviewing the account and required functions.

    Yes. We can implement your strategy in an external Python application and connect it to Interactive Brokers. The scope can include market-data processing, entry and exit logic, sizing, order management, logging, and monitoring. The data source, operating sessions, and behaviour after connection interruptions are agreed as part of the specification.

    Yes. An application can combine suitable IBKR data with licensed historical, market, news, or fundamental data from other sources. We review coverage, timestamps, contract mapping, and usage rights. External data can be useful where the strategy requires a different history, resolution, or dataset from the one available through IBKR.

    We implement the agreed strategy in an external historical-testing workflow using appropriate data and execution assumptions. The scope defines instrument coverage, trading costs, sessions, and the outputs to review. Historical simulation and paper-account testing answer different questions: the latter checks the live integration using simulated orders. Neither reproduces every condition of live execution.

    Signal automation receives instructions from a source such as TradingView, Telegram, Discord, or an API and converts them into IBKR orders. A trade copier follows trading activity from a source account or platform. Both require accessible interfaces and clear rules for instruments, sizing, order updates, and handling repeated events.

    We can develop tools for a trader whose prop arrangement uses an IBKR account that permits the required API access and automation. The firm’s trading rules, account permissions, and allowed execution methods are reviewed first. The scope can include strategy automation, session controls, exposure monitoring, and risk responses; availability is specific to the account and firm.

    Yes. Send the source code you are authorized to share, setup instructions, and a description of the current behaviour and remaining requirements. We review the architecture and connection method before agreeing whether to extend the existing application, replace a component, or complete the integration and testing.

    The estimate depends on the trading rules, interfaces, instruments, data requirements, and testing scope. After the initial assessment, we provide a defined scope, price, and expected timeline before development begins. Existing code and API-access requirements are considered in the estimate.

    Source code delivery, intellectual-property terms, project files, setup assistance, and support are agreed before development. NDA arrangements are available for confidential requirements. The delivery scope identifies what is included and what account access or third-party subscriptions you need to provide.

    Discuss Your Interactive Brokers Project

    Share your trading rules, current application, or integration requirements. We will review the technical scope and outline the next development steps.

    Free technical assessment
    Clear scope before development
    Post-delivery support