Hakan Sevimoğlu Hakan SevimoğluFreelance Developer · 18 yrs
BIST · Stocks · Trading platform

Stock Trading Software Developer: I Build Stock Analysis and Trading Platforms

I develop analysis platforms with live charts, signal and portfolio tracking systems, membership-based trader communities and automated trading infrastructure for Borsa Istanbul and crypto markets.

Quick answerA stock trading software developer is a software specialist who builds live data, charting, analysis, signal tracking, portfolio and automated trading software for stock, index and crypto markets. Hakan Sevimoğlu developed Number One Trading, a platform used by around 300 traders that offers live charts, analysis sharing and signal tracking for BIST and crypto.

Written by Hakan Sevimoğlu · Last updated:

Reference: Number One Trading

Number One Trading is an analysis platform used by around 300 traders, offering live charts, analysis sharing and signal tracking for BIST and crypto markets. Real-time data streaming, membership and permission management, notifications and reports form the core of the platform.

Types of trading software I develop

  • Membership-based analysis and signal sharing platforms for trader communities
  • Live charts, technical indicators and stock screeners
  • Portfolio, profit/loss and dividend tracking
  • Price and indicator alerts: web, mobile and Telegram notifications
  • Automated trading infrastructure with brokerage and crypto exchange APIs
  • Strategy backtesting and performance reports

Borsa Istanbul data is sourced through licensed data vendors; real-time data use and redistribution are subject to license terms, which are clarified at the start of the project. I develop software; I do not give investment advice, and there is no profit guarantee for any strategy. In Türkiye, investment advisory, portfolio management or selling signals on behalf of others is regulated by the Capital Markets Board of Türkiye (SPK); for any use beyond your own, the legal framework should be clarified in advance. For crypto: Binance bot and crypto exchange software.

What I offer

  • Live charts

    Real-time prices and indicators.

  • Signal tracking

    Analysis sharing and outcome tracking.

  • Portfolio

    Profit/loss and position tracking.

  • Alerts

    Web, mobile and Telegram notifications.

  • Memberships

    Plan, permission and subscription management.

  • Automation

    Automated trading infrastructure via API.

Technologies I use

PHPLaravelNode.jsWebSocketTradingView ChartingMySQLRedisPython

Example projects

A selection of live projects serving real users.

How we work

  1. Free intro call

    We clarify needs, existing systems and goals together.

  2. Quote & roadmap

    Scope, technology, timeline and budget within 24 hours.

  3. Staged development

    Weekly demos and a live test environment.

  4. Launch & support

    Go-live, training and ongoing maintenance.

Free pre-analysisThe first meeting and roadmap are completely free, with no obligation.

Staged delivery and approvalYou review each module on a test environment before we move on.

Written scope and rightsScope, delivery and source code rights are defined in the contract.

Frequently asked questions

What does a stock trading software developer do?

They build live data, charting, analysis, signal, portfolio and automated trading software for stock and crypto markets.

How is BIST data obtained?

Borsa Istanbul data is sourced through licensed data vendors; license terms differ for delayed and real-time data.

Can you build a platform for my trader community?

Yes. I develop membership-based platforms with analysis and signal sharing, like Number One Trading.

Can it have a mobile app as well?

Yes. iOS and Android apps with push notifications can be developed for the platform.

Is there a profit guarantee?

No. The software executes the strategy according to your rules and without errors; it does not guarantee market outcomes. I do not give investment advice.

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