About

About Coder Trader

Hi, I'm Dongmin Park — a Korean software engineer based in Ingolstadt, Germany. With over 10 years of hands-on trading experience across global markets, I'm currently in a research and documentation phase, sharing the frameworks and lessons I've accumulated over the years.

Why I Built This Blog

After a decade of active trading — through multiple bull markets, crashes, COVID volatility, and several crypto cycles — I've reached a point where I want to step back, reflect, and document what I've learned.

Most trading blogs are written by influencers claiming daily wins. This blog takes a different approach: a research archive from someone who has done the trading and is now organizing the lessons.

The trading education space suffers from two problems:

  1. Influencers selling "signals" without ever showing verifiable long-term results
  2. Complex strategies presented without the discipline of rule-based execution

Coder Trader is my public archive: rule-based frameworks, historical chart analysis, and Pine Script tools — all grounded in years of practical experience.

The International Perspective

Trading Korean and American markets while living in Germany has given me an unexpected advantage: the more physical distance you have from a market, the less emotional you become about it.

This natural detachment forced me to build systematic frameworks — because I couldn't watch every tick anyway. That discipline shaped everything I share on this blog.

My Trading Background

  • Korean Securities Account — opened in 2016, with 10+ years of equity and derivatives trading history (KOSPI stocks, ETFs, and US options through Korean brokers)
  • Upbit Account — opened in 2020, with 6+ years of cryptocurrency trading experience across BTC, ETH, and select altcoins
  • Futures Trading — MNQ (Micro Nasdaq) contracts through international brokers
  • Trading Style — 100% rule-based frameworks, applied across multiple market cycles
  • Current Focus — Documentation, framework refinement, and Pine Script tool development

My Professional Background

  • Software Engineer with 15+ years of experience in embedded systems, spanning automotive and defense industries
  • Programming Languages — Python, C, C++, C#, Pine Script
  • Career Journey — Started my software engineering career in Seoul, South Korea. Relocated to Ingolstadt, Germany in 2022 to continue working in embedded systems for European automotive and defense projects
  • Currently based in — Ingolstadt, Germany 🇩🇪
  • Origin — South Korea 🇰🇷 (born and raised)

Content Philosophy

Every post on this blog follows these principles:

  • ✅ Rule-based frameworks only — no discretionary "gut feeling" trading
  • ✅ Grounded in real experience — a decade of active trading across market cycles
  • ✅ Historical chart analysis — with detailed annotations and reasoning
  • ✅ Lessons from failure — my losses taught me more than my wins
  • ✅ Pine Script code shared publicly on GitHub, so you can verify and modify
  • ✅ Engineering rigor applied to trading — testable, repeatable, documented

What You Won't Find Here

  • ❌ "Guaranteed" strategies or unrealistic return promises
  • ❌ Signal services, paid Discord groups, or subscription "insider tips"
  • ❌ Live trade calls or predictions about specific markets
  • ❌ Copy-paste strategies from other creators without deep analysis
  • ❌ Vague "market feel" analysis without measurable rules
  • ❌ Financial advice tailored to your personal situation (see disclaimer below)

What Makes This Blog Different

Most trading blogs are written by full-time traders trying to sell their next signal, or by marketers with no real trading experience. I'm neither.

I'm a software engineer who spent a decade applying engineering discipline to markets, and I'm now organizing that knowledge in one place. This blog is my public research archive, not a live signal service.

This means:

  • 🔧 I approach trading the way I approach software problems — testable, repeatable, documented
  • 📚 Content focuses on frameworks and principles, not predictions
  • 📊 Analysis uses historical charts and public data, freely accessible to all
  • 💡 The value is in the thinking process, not the specific trade

Important Disclaimer

This blog is for educational and informational purposes only. Nothing here constitutes financial, investment, tax, legal, or trading advice. All content reflects my personal experience, research, and opinions.

Trading futures, options, cryptocurrencies, stocks, and other leveraged instruments involves substantial risk of loss and is not suitable for every investor. Past performance never guarantees future results. You can lose more than your initial deposit.

Always consult a licensed financial advisor and conduct your own research before making any trading or investment decisions. See our full Disclaimer and Privacy Policy for details.

Get In Touch

I read every email personally. Feel free to reach out with questions, corrections, feedback, or just to say hello:

For business inquiries, sponsorships, or collaboration proposals, please use the email above with the subject line "[Business]".

I typically respond within 2-3 business days.

Thanks for stopping by. If you find value in what I share, please consider bookmarking the site or sharing with a fellow trader who thinks in systems, not signals.

— Dongmin
Ingolstadt, Germany · 2026

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