About

Louis is a developer who treats security as the default,
not as an optional extra.

1. Roles and stance

  1. Roles and stance

I operate as a hybrid of Product/Project Manager, Tech Lead, and Hands-on Engineer:

  • Requirements definition, specification writing, estimation, and stakeholder coordination
  • Implementation work (WordPress/PHP, JavaScript, database and infrastructure configuration)
  • End-to-end ownership including manuals, operational flow design, and troubleshooting

I frequently act as a bridge between business and engineering, coordinating with external development vendors (including overseas) and SaaS providers while translating business requirements into technical specifications.

2．Web system development (WordPress / PHP / MySQL)

I have repeatedly built custom business applications on top of WordPress:

  • Ticket reservation and membership management systems implemented as suites of custom plugins
  • Clear separation into plugins for backend logic, back-office UI, front-end UI, access control, CSV export, mail handling, and login UX, etc.

I am experienced in database schema design and migration with PHP + MySQL:

  • Using CREATE TABLE and dbDelta together with register_activation_hook / plugins_loaded for self-healing schema management
  • Designing multiple domain-specific tables (productions, performances, reservations, members, seat types, etc.)
  • Querying information_schema to detect missing columns and patching live schemas via ALTER TABLE ... ADD COLUMN

I design and implement REST APIs:

  • Custom endpoints (e.g. under /wp-json/...) for reservations, inventory, and member data
  • Verifying and adjusting contracts between front end, back office, and backend to keep payloads and behavior consistent

I encode complex business rules and validations:

  • Seat-type restrictions, stock visibility flags, per-performance pricing, reservation deadlines, and multi-performance bookings
  • CSV import/export formats with multi-row headers and operator-friendly column structures

3．Security engineering under NDA

In parallel with product development, I currently work with three companies on a confidential, ongoing basis as a security-focused engineer:

  • Secure system and architecture design under strict NDA and confidentiality obligations
  • Hardening of existing WordPress and web application stacks, including access control, configuration, and operational safeguards
  • Establishing security-oriented operational practices that balance usability with strong controls (logging, separation of duties, least privilege, change management, etc.)

These engagements are not public by design, but they continuously inform my approach to building and operating secure, production-grade systems.

4．Online gaming domain

I oversee the product side of online gaming services:

  • Designing integration with external CRM/loyalty platforms and sportsbook providers
  • Defining signup flows and bonus schemes (e.g. bonuses, loyalty ranks), including GGR-based financial impact calculations

I work on specifications for ID, wallet, and bonus linkage between in-house membership front ends and external gaming platforms, and coordinate their implementation with development partners.

5．Frontend and BaaS / no-code integration

I use Next.js and backend-as-a-service platforms to prototype and implement sports-related and transactional applications:

  • Integrating match-listing APIs, implementing authentication, and designing routing under src/app/...
  • Connecting front-end experiences with REST/BaaS endpoints in a way that remains maintainable and testable

I actively combine no-code / low-code services with custom code, using SaaS/BaaS where it is efficient and filling the gaps with my own implementations.

6．AI and algorithmic trading (FX)

As part of a broader “AI and finance” initiative, I am designing an AI-assisted FX trading system:

  • Planning automated trading around a retail trading API/platform
  • Using Python for backtesting and live trials, with historical market data as input
  • Structuring the system into layers (observation, interpretation, decision, execution) with “capsule-like” modular design and a knowledge base (e.g. market_patterns.md) as a core artifact

I use LLMs via APIs for market interpretation and to provide a visual UI that surfaces AI reasoning to the user, both for confidence and for debugging.

7．Development environment and infrastructure

I manage my own local and server environments:

  • Windows + VS Code + PowerShell as a main development setup, with Node/NPM and Python virtual environments
  • Operating shared hosting/VPS environments for WordPress, using tools such as WP-CLI, SSH, file managers, and zip-based deployments for staging and production

I am exploring modern languages and toolchains such as Rust, and I consciously think in DevSecOps terms: repositories, automation, reducing human error, and improving observability.

8．Documentation and operations design

I regularly produce structured documentation:

  • Requirements and specification documents
  • Back-office and operations manuals
  • Development roadmaps and implementation plans
  • Investor-facing materials and numeric projections

I have a clear philosophy of reducing dependency on individuals:

  • Turning tacit knowledge into explicit rules
  • Documenting and systematizing processes instead of relying on “black boxes” in IT and operations

My overall stance is to stay close to both the code and the business, and to build systems that can actually be run, maintained, and extended in the real world.