A guide to the key statistics areas you should master to excel in quantitative finance.

Essential Statistics Topics for Quant Finance

Drawer, Tab & Stack Navigators are fundamental build blocks to all large dynamic mobile apps. Here I demo some of the nuances of working with them.

Mobile Navigation with Flutter

A clear, practical guide to Registered Direct Offerings (RDOs): what they are, why companies use them, how they compare to IPOs, and what investors should consider.

What is an RDO and how does it differ from an IPO?

Adding illustrative features which enable customers to see the final product(cake) before its made & enabling bakeries to customize colors. Also adding Canva integration

Bake Suite: Cake & Art

Even industry leaders like Reddit can have bugs in production. This post highlights a duplicate posts issue in Reddit's mobile app and encourages developers and hiring managers to view such bugs as opportunities for growth, learning, and empathy.

Bug Report on Reddit: Lessons from a Duplicate Posts Glitch

Learn how to avoid messy nullable fields in Dart models by using inheritance and composition. Discover best practices for structuring your data classes for both list and detail views, improving code clarity and maintainability.

Handling Nullable Fields in Dart: Cleaner Models for Lists and Details

A starter template for building Python APIs using FastAPI, GraphQL, and SQLAlchemy. Includes example resources and project structure for rapid development.

FastAPI + GraphQL + SQLAlchemy Starter Template

Markets over react to positive news by HOOD on growth in the Fantasy Sports Betting industry priming DKNG for a bounce

DKNG $40/$42 1/16/26 Call Debit Spread

The US Stock Markets growth over the last 25 years

U.S. stock-market size

Learn how to set up and connect to Google Cloud Memory Store (Redis) from Cloud Run using a VPC connector.

System Design: Getting Started with Google Cloud Memory Store (Redis)

Learn what GCP VPC Connectors are, why they matter, and how to use them to enable secure private networking for your serverless applications.

System Design: Understanding Google Cloud VPC Connectors

Learn what Google Cloud Secret Manager is, its benefits, and how to securely manage secrets for your applications in GCP.

System Design: Google Cloud Secret Manager

Explore the pros and cons of three popular approaches for scheduling and running background jobs in Google Cloud: App Schedulers, Cloud Scheduler, and Cloud Run Jobs.

System Design: Comparing Background Job Techniques in GCP: App Schedulers, Cloud Scheduler, and Cloud Run Jobs

Learn what Google Cloud Scheduler is, its benefits, and how to set up a scheduled job in Google Cloud.

System Design: Getting Started with Google Cloud Scheduler

Learn how Cloud Build Triggers automate CI/CD workflows in Google Cloud, enabling automatic builds and deployments for your applications.

System Design: Automating Deployments with Google Cloud Build Triggers

Learn what Google Cloud Run is, its benefits, and how to deploy containerized applications with ease.

System Design: Getting Started with Google Cloud Run: Serverless Containers Made Easy

AI-driven vibe coding makes simple apps effortless, but when projects demand nuance, it turns into a frustrating cycle of fixing one issue only for another to pop up.

Opinion: Vibe Coding Without Coders... AKA Whack-a-Mole

How to use the SQL LAG window function to compare current and previous row values, with practical query and table output.

Lag Function: Access data in a previous row in the same result set without having to join the table to itself.

AI expands knowledge like a fractal—each layer of clarity reveals new noise, trapping us in a recursive race to find true signal.

Opinion: AI as a Fractal: Signal, Noise, and Recursive Nature of Progress

Step-by-step guide to cloning tables or data from one remote PostgreSQL database to another using pg_dump and psql.

How Do I Clone a Remote PostgreSQL Database to Another Remote Database?

Step-by-step guide to dumping a remote PostgreSQL database or schema and restoring it to a local database using pg_dump and pg_restore.

How Do I Dump and Restore a Remote PostgreSQL Database to a Local Database?

A practical guide to understanding GraphQL in system design — how it compares to REST, when to use it, and the key concepts behind building flexible and efficient APIs.

System Design: GraphQL Crash Course

A concise reference of key numbers every engineer should know for system design interviews and rough capacity estimations — from latency benchmarks to storage calculations.

System Design: Must-Know Numbers

Agents, state spaces, goal tests, path costs & more

AI Search Agents for 15 Puzzle & Maze Path Finding

🚀 A single tool to replace pip, pip-tools, pipx, poetry, pyenv, twine, virtualenv, and more.

UV: Package Manager

Restarting a server to see changes reflected call kill velocity when working. Enable Hot Reloading to see changes to the app reflected from your code without the need for a server Restart

How to enable hot reloading in Flask?

Create an auditing system for enterprise applications which tracks user requests, resources touched & action taken. Reuse logic by leveraging hooks so that code is clean & concise. By utilizing middlewares, events & closures we're able to capture the details of requests on all our resources without duplicating code.

System Design: Build a auditing solution for collecting metadata on users of your system.

Decouple, distribute, and scale: A message queue lets your app handle tasks asynchronously, improving performance, reliability, and system flexibility.

System Design: Build a Message Queue

How to add Light/Dark mode to a Flutter application quick and easy using Flutter's built in Provider & Notification modules. Allow users to change the app's theme as well

System Design: Add Dynamic Themes & Light/Dark Mode in Flutter using Provider & Notify Listeners

A walkthrough of pair trading, portfolio construction, and mean-variance optimization in quant finance.

Pair Trading: A Quantitative Approach

A reference guide to the most important symbols, their original names, and meanings in quantitative finance.

Key Symbols in Quantitative Finance

Learn how premium flow trends help traders identify optimal entry and exit points for assets by analyzing market sentiment and momentum.

Indicators: Premium Flow

Learn what slippage is, why it happens, and how traders can minimize its impact when buying or selling in financial markets.

Slippage in Trading: What It Is and How to Avoid It

Explore the differences between institutional and retail investors, including their characteristics, strategies, and impact on financial markets.

Institutional vs. Retail Investors: Key Differences

Learn the difference between primary and secondary markets in finance, including how securities are issued and traded, and why both are important for investors.

Primary vs. Secondary Markets: Key Differences

Learn the meaning of upside and downside in trading—how these terms help assess potential gains and risks before entering a position.

Upside vs. Downside in Trading

Discover what a warrant is in finance, how it works, and how it compares to options. Learn about exercise price, expiration, and the role warrants play in trading and investing.

What is a Warrant in Finance?

Essential calculus concepts and techniques for success in quantitative finance.

Calculus for Quantitative Finance

Overview of the essential mathematics—linear algebra, statistics, calculus, and more—for success in quantitative finance.

Mathematics for Quantitative Finance

A comprehensive guide to Implied Volatility Rank (IVR), its calculation, significance in options trading, and practical applications.

Understanding Implied Volatility Rank (IVR)

How quant traders use premium flow and z scores to spot unusual options activity and trading opportunities.

Premium Flow with Z Scores

Explore the Put-Call Ratio, its calculation, interpretation, and role as a sentiment indicator in financial markets.

Understanding the Put-Call Ratio in Options Trading

A guide to understanding and using the Relative Strength Index (RSI) in finance.

Relative Strength Index (RSI): What It Is, How It Works, and Formula

Sharpe Ratio: Definition, Formula, and Examples

Learn what quadruple witching is, why it matters for traders, and how it affects stock market volatility.

Quadruple Witching Explained: Impact on Stock Market and Key Dates

Learn what Net Asset Value (NAV) means, why it matters for investors, and how to calculate it for investment funds.

Net Asset Value

Understand the concept of extrinsic value in finance, especially in options trading, and learn how it affects pricing and investment decisions.

Extrinsic Value in Finance: What It Means and Why It Matters

Learn what intrinsic value means in finance, how it is calculated, and why it is important for investors and option traders.

Intrinsic Value in Finance: What It Means and Why It Matters

Learn what mutual funds are, how they operate, their benefits and drawbacks, and why they are a popular investment choice for individuals and retirement accounts.

Mutual Funds: What They Are and How They Work

Discover how open-end funds work, their advantages and disadvantages, and why they are the most common investment vehicle for mutual funds and retirement accounts.

Open-End Fund: Definition, Example, Pros and Cons

Learn how closed-end funds operate, how they differ from open-end funds, and what makes their share structure and trading unique.

How a Closed-End Fund Works and Differs From an Open-End Fund

Index Fund: What It Is and How to Invest

A practical guide to the Black-Scholes formula, its significance in finance, and how to calculate option prices using Python.

Quant Finance: Understanding the Black-Scholes Formula for Option Pricing

A practical guide to Delta, Gamma, Theta, Vega, and Rho for options traders. Learn how each Greek affects option pricing and risk management.

Finance: The Greeks

Learn how the open frac indicator helps quantify opening vs. closing volume in options markets, and how it can be used as a signal in quantitative finance.

Finance: Understanding Open Frac as an Options Signal

Explore a comprehensive range of options trading strategies—from basic hedging and income generation to advanced volatility and arbitrage plays. Learn how each strategy works, its risk-reward profile, and how finance professionals use options to manage portfolios, enhance returns, and structure custom exposures.

Finance: Options Trading Strategies

Explore what exchange-traded funds (ETFs) are, how they work, and why they are a popular investment choice for gaining diversified market exposure.

Exchange-Traded Fund(ETF): What It Is and How to Invest

Strangles: Flexible Strategies for Options Traders. Discover how strangle strategies work and their role in options trading.

Finance: Strangles in Options Trading

Straddles: A Versatile Option Investment Strategy. Explore how straddles work and their role in option investment strategies.

Finance: Straddles in Options Trading

Condors: Balancing Risk and Reward in Options Trading. Learn how condor strategies work and their place in option investing.

Finance: Condors in Options Trading

A comprehensive guide to option spread strategies, including vertical, credit, and debit spreads. Learn how spreads manage risk, reduce cost, and enhance returns.

Finance: Spreads in Options Trading

Options aren’t just speculative bets—they serve as insurance, income generators, leverage tools, and volatility plays. Finance experts use them to reshape risk-reward profiles, hedge portfolios, and engineer custom exposures that traditional assets alone can’t provide.

Finance: Introduction to Options

How you approach complicated problems or systems. A strong answer emphasizes breaking problems into smaller parts, prioritizing tasks, simplifying patterns, collaborating with others, and iterating solutions step by step.

Question: How do I deal with complexity?

Explore your leadership style. A strong answer highlights guiding a team by setting clear goals, communicating effectively, supporting and mentoring team members, making informed decisions, and fostering collaboration and accountability.

Question: How do I lead?

A concise guide to the essential principles of system design, covering scalability, reliability, maintainability, availability, and trade-offs. This post introduces the core building blocks you need to design robust, efficient, and scalable systems—crucial knowledge for system design interviews.

System Design: Bit.ly

A distributed system is a collection of independent computers that appear to the users as a single coherent system. The key goal is to achieve scalability, fault tolerance, and high availability while maintaining consistency and performance.

System Design: Distributed Systems

Manually repeating these tests is costly and time consuming. Once created, automated tests can be run over and over again at no additional cost and they are much faster than manual tests. Automated software testing can reduce the time to run repetitive tests from days to hours.

System Design: Automated Integration Testing with Appium & Mocha

Reasons why Flutter is my framework of choice over React Native for developing cross-platform apps on desktop, mobile, & web.

Opinion: Flutter vs React Native: Why I choose Flutter before React Native

Usually an easy process but not always. With Flutter & Firebase logging hasn't been straight forward. The steps I've taken and the behavior I'm observing logging the duration of rootBundle.load() to Firebase.

Logging app load times with Firebase

Learn how to use Git pre-commit hooks to automatically run checks or scripts before committing code, with practical examples using shell and Husky.

Guide: Git Pre-Commit Hooks Explained with Examples

Learn how to rebase in Git with step-by-step examples. Understand the difference between merge and rebase, and how to resolve conflicts when rebasing.

How to Rebase in Git (With Examples)

How to setup SQL Server using Azure SQL Edge docker image and check its working correctly. Snippets of TSQL

System Design: SQL Server setup using Azure SQL Edge Docker image

A list of the necessary skills to qualify as a mobile develop in a framework

Guide: Fundamental Mobile Developer Skills

When we want to commit part of a file to git we can!

Guide: How to stage part of a dirty file

.NET commands & shortcuts to get you up and running quick & easy.

Cheatsheet: .NET

Data Structures & Algorithms in Python

Building a Duolingo/Quizlet/Leetcode/TikTok side project because I thought these apps were all awesome and wanted to combine attributes of each one of them into a single learning platform.

Project: Semantic Stoic

Python: Useful Heap Methods

How to create a function which has access to variables defined outside its block scope

How to create a closure in Ruby

Requirements for setting up Java working environment using VSCode

Setup Java & Spring Boot

Containerize multiple services using Docker for cloud deployment. Using NPM, ExpressJS, NodeJS, and Docker we create two microservices that work together to create a web app which help users learn about the wizards of Hogwarts.

System Design: Containerization of Microservices using Docker

A review of dynamic programming and the techniques used to implement it including Brute Force, Top Down Memoization, & Bottom Up Tabulation.

Algorithms: Dynamic Programming

How to implement a custom Hash Table, analogous to a dict, using simpler data types & a hash function.

Data Structures & Algorithms: How to create a Hash Table?

Concurrency is the ability of program to handle multiple tasks simultaneously. Go uses go routines to achieve this, also known as concurrency.

What is concurrency in Go?

Multi platform frameworks like Flutter means we can build web versions of our app simultaneously with mobile. Use Netlify to reach users on the web at the same time as iOS & Android by adding a few configurations and leveraging it's CI/CD pipeline to have web builds in no time.

System Design: Flutter Web App Production Deployment with Netlify

The steps I would take to clone TikTok using Flutter. Including project structure, navigation, code snippets & more.

Project: How to build TikTok with Flutter? Part 2

Project: How to build TikTok with Flutter? Part 1

One of the most famous algorithms in the field of graph theory. Useful when finding the shortest paths between nodes in a weighted graph.

Algorithms: Dijkstra's Algorithm

Big O Notation's common complexity cases to familiarize oneself with.

Cheat Sheet: Big O Notation

The principles which guide object oriented programming

Object Oriented Programming

Platform specific solution for Android connectivity issues while developing with Flutter.

Flutter - Android app connection refused to local server when iOS & web work

Change icon name based on build helping to identify which app is installed on our device quick & easy.

How to change Android app icon name programmatically based on the build type?

Understand the difference between leading and lagging indicators—how they help predict or confirm economic and market trends, with practical examples for each.

Leading vs. Lagging Indicators in Finance

Seeding database records for our clients, understanding our records data types, and validating/designing relationships between resources.

Project: Royal Stock Exchange(RSE) - Flutter Time Series with Sync Fusion Charts - Part 5

10,000 ft overview on how we plan to scale to our first 1,000,000 concurrent users

Project: Royal Stock Exchange(RSE) - How to Scale Our System to Millions? - Part 4

Basic functionality of a stock exchange including Carousel Ticker, Line & Candlestick Charts, Portfolio page/screen & more.

Project: Royal Stock Exchange(RSE) - First "Demo-able" Work - Part 3

Project: Royal Stock Exchange(RSE) - Seeding Stock Market data in SQL - Part 2

Build a stock exchange with .NET, Entity Framework, Flutter, Azure & more. Write backend code in C# & frontend using Flutter

Project: Royal Stock Exchange(RSE). Building a Full Stack Stock Exchange - Part 1

An overview of data structures used to solve more complex problems in the field of computer science.

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Essential Statistics Topics for Quant Finance