About

Who's Behind DurdenBTC

A pseudonymous engineer with 20+ years of writing production software, currently leading engineering at a Fortune-1000 SaaS company. The systems here are built the same way real production systems get built — deterministically, auditably, with the failure modes mapped first.

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20+ yrs
Writing Code
Fortune 1000
Current Employer
Sr. Eng Mgr
Day Job
01 — The Short Version

Not Just Some Random Dude on the Internet

DurdenBTC is the pseudonym of a software engineer who has been shipping production code for more than twenty years. The career started in the mid-2000s building web software for advertising and consumer platforms, moved through a series of venture-backed startups across food-delivery, recruiting, media, and on-demand services, and eventually landed in enterprise SaaS where the work shifted from shipping features to building and leading engineering organizations.

The current day job is senior engineering manager at a publicly-traded, Fortune-1000 SaaS company, leading multiple engineering teams in the identity, access, and security & compliance space. The work involves production systems running in regulated cloud environments, zero-standing-access patterns, just-in-time provisioning, and the kind of slow, deliberate engineering that exists because the consequences of failure are real.

That background is the reason DurdenBTC exists in its current form. The systems on this site — MRE v06, Arsenal BTC, the live members dashboard, the daily snapshots — are built using the same instincts that get you through a security audit: deterministic logic, replayable signals, every input documented, every decision auditable, no magic numbers. The market doesn't grade on a curve. Neither does production.

02 — The Stack

What's Under the Hood

The site you're reading is a Node/Express application backed by Postgres, with the backtests and live signal pipelines written in Python. The macro and Bitcoin pipelines pull from FRED, public exchange data, and a handful of derived feeds, run through deterministic scoring logic, and surface the output as the research, charts, and member dashboards. Nothing on this site is black-box AI. Every signal you see has a published rule, a published backtest, and a published forward test.

Two decades of professional engineering across web, mobile, distributed systems, cloud infrastructure, and most recently identity and security & compliance. The toolbox is wide on purpose:

Python Node.js NestJS Elixir Postgres AWS (GovCloud) Okta FedRAMP Zero-Standing-Access Just-In-Time Provisioning SOX / SOC2 Pandas / NumPy Backtest Infrastructure
03 — The Philosophy

Why Survival Is Alpha

The longer you spend in engineering, the more you notice that the systems that survive are not the cleverest ones. They are the ones with the cleanest failure modes. Production reliability isn't a function of being right more often. It's a function of failing less catastrophically. Every senior engineer eventually arrives at the same conclusion: defense compounds harder than offense.

That insight is what the entire DurdenBTC project is built around. The core thesisSurvival Is Alpha — argues that drawdown management is itself the compounding strategy. Avoid the −80% holes, compound from a higher base, and the math takes care of the rest. The site exists because that idea is criminally undersold in retail crypto and retail macro, where the dominant cultural posture is to outrun the volatility rather than respect it.

The work on this site is open in the way good engineering should be open. The forward tests are public. The research is timestamped. The 8th Rule drawdown framework is fully documented. Nothing is hidden behind a paywall except the live members dashboard, and even that exists primarily to keep the signal-to-noise ratio honest.

04 — What This Site Is

The Working Systems

MRE v06 — the Macro Regime Engine — is a quantitative regime classifier for the S&P 500. It reads a panel of macroeconomic and market-structure signals, classifies the environment into Risk-Off, Risk-Neutral, or Risk-On, and outputs a deterministic exposure recommendation. 23-year backtest, seven independent forward tests passed, public daily snapshots.

Arsenal BTC is a trend-following framework for Bitcoin built on volatility-adjusted trend signals (VATS) and the 8th Rule drawdown gate. The backtest covers Bitcoin's full liquid history. The headline result is the asymmetry: 78,930% total return against buy-and-hold's 32,563%, with a −34% max drawdown versus buy-and-hold's −83%. That gap is the entire point of the project.

The two systems share one philosophy and almost no code. They are deliberately independent, deliberately specialized, and deliberately built to fail in different ways. If you want the full picture, the thesis page walks through the math, the research archive shows the time-stamped commentary, and the charts page is the live dashboard.

In One Line

Two decades of building production systems taught me to respect the downside. DurdenBTC is what happens when you point that instinct at markets.

05 — How to Find Me

The Channels

I write on Substack, post live signal updates and chart annotations on X / Twitter, and run a small Discord for active members. Those are the only three official channels. If someone is claiming to be DurdenBTC anywhere else, it isn't me.

One thing to flag: I'm not a financial advisor, I'm not a broker, and I'm not in the business of telling anyone what to buy. Everything on this site is the published methodology of a working engineer who built something he uses himself. Read the full disclaimer before drawing any other conclusions.

Read DurdenBTC on Substack

Free macro regime updates, system breakdowns & thesis posts.