Engineering & Problem Solving
Outcome-driven problem solving across enterprise Magento 2 & Shopify builds, custom systems, and zero-dependency open-source developer tooling.
Methodology
Every project starts with a concrete operational constraint. Here is how I approach complex technical challenges:
01 · Diagnosis First
Uncovering structural bottlenecks—such as non-upgradeable class overrides, unindexed DB queries, or memory-leaking profilers—before writing a single line of code.
02 · Lean Footprint
Engineering zero-dependency JS libraries and single-file server systems that deliver sub-millisecond execution without bloated transitive dependencies.
03 · Upgrade Safety
Designing around clean API interfaces, DI plugins, and declarative schemas so code survives future platform updates and high-concurrency traffic spikes.
The catalogue
Showing 14 entries.
Commerce
Magento 2 and Shopify storefront builds, custom extension engineering, checkout optimization, ERP integrations, and zero-downtime cloud deployments.
Healthcare Commerce
Medical equipment sales and rental platform built around real-time availability tracking, custom deposit flows, and operational business rules.
Database Admin Tool
A modern, single-file database administration interface in PHP & Node.js for managing MySQL, PostgreSQL, and SQLite with 7 dark themes and 13 languages.
Magento 2 Extension
In-browser developer control panel for Magento Admin providing 1-click cache flushing, selective indexer runs, memory-safe log tailing, and DI wiring inspection.
Frontend Profiler
Real-time storefront profiling toolbar that measures block execution times, layout handle trees, query counts, and template hints without breaking layout.
Academic ERP
Academic result and reporting system featuring granular role-based permissions for school administrators, teachers, and students.
JS Alignment Library
Zero-dependency JavaScript alignment library rendering visual pixel rulers, drag-and-drop guides, element snapping, and distance measurements on web layouts.
60fps Scrolling Library
Hardware-accelerated 60fps infinite marquee scroll library with delta-time animation loops, hover-pause, touch swipe physics, and WCAG reduced motion support.
Media Lightbox Library
Lightweight, zero-dependency media gallery and accessible lightbox featuring multi-touch pinch-to-zoom, touch swipe physics, focus trapping, and ARIA announcements.
Positioning Engine
Sub-2KB zero-dependency tooltip library featuring automatic viewport edge collision detection, smart flipping, delay timing, and ARIA focus triggers.
Touch Carousel Engine
Zero-dependency touch carousel library with pointer-event swipe physics, infinite looping, pagination dots, adaptive height, and keyboard navigation.
Real-time App
Live scoring application handling high-frequency match updates with readable state transitions under motion.
Lead Generation
Responsive financial services site designed for trust, conversion rate optimization, and rapid lead capture.
ML / Assistive UX
Interface experiment combining facial sentiment analysis with dynamic response suggestions and UI adaptations.
Curated Repositories
A dedicated showcase of high-performance developer tools, zero-dependency UI libraries, and Magento 2 profiling extensions available on GitHub.
Database Admin · PHP / Node.js
Single-file database manager for MySQL, PostgreSQL, and SQLite. Zero setup, multi-theme dark mode, and connection pooling security.
Magento 2 Admin · Developer Panel
In-browser control panel with 1-click cache flushes, selective reindexing, memory-safe log tails, and DI class wiring inspection.
Magento 2 Storefront · Real-Time Profiler
Real-time block execution timer, layout handle tree viewer, and query counter with zero impact on real shoppers.
Vanilla JS · Grid & Ruler Overlay
In-browser pixel ruler, drag-and-drop guides, element snapping, and responsive distance measurement overlay.
Vanilla JS · 60fps Ticker
Hardware-accelerated 60fps infinite marquee scroll engine with delta-time loops, touch swipe, and WCAG reduced motion support.
Vanilla JS · Media Lightbox
Lightweight, accessible lightbox and media grid featuring multi-touch pinch-to-zoom, swipe physics, and keyboard focus trapping.
Vanilla JS · Sub-2KB Tooltip Engine
Sub-2KB zero-dependency tooltip engine with viewport collision edge detection, smart flipping, and accessible triggers.
Vanilla JS · Touch Carousel
Sub-4KB touch-enabled carousel slider with pointer-event swipe physics, infinite slide looping, and auto-play timers.
Linux Administration · Go / React
Single static Go binary web management suite with embedded React SPAs for managing Virtual Hosts, Let's Encrypt SSL, UFW Firewall, and PHP-FPM pools.
Finance Web App · Next.js / Postgres
Full-stack personal finance application built with Next.js App Router, Prisma ORM, and PostgreSQL for budget tracking and cash flow analytics.
Fitness PWA · Next.js / Offline
Military-style 7-day progressive calisthenics PWA featuring 800+ exercise database, progressive overload wave calculator, and local storage data persistence.
Network Utility · Python CLI
Async Python CLI tool to collect, validate, measure response latency, and export HTTP, HTTPS, and SOCKS proxy lists.
Engineering Writing
First-person engineering articles on why these tools exist, how they were architected, and what problems they actually solve.
Magento 2 · Developer Tooling
Flashing caches, tailing logs, and inspecting DI wiring in Magento 2 burns hours in terminal tabs. The story and architecture behind Admin Dev Tools — 1-click cache flushes, memory-safe log tailing, and live DI inspection right inside the Admin GUI.
Magento 2 · Storefront Profiler
Native template hints wrap blocks in red borders that destroy layout math. The CONFIG_MAGE_PROFILER dump inflates page height and invalidates Core Web Vitals. Frontend Dev Tools injects a clean floating toolbar that profiles microsecond block render times without touching a real shopper's session.
Database Administration · PHP / Node.js
phpMyAdmin requires Apache, MySQL, PHP extensions, and a config file — before you can even log in. Dabiro is a single file you drop on any server. MySQL, PostgreSQL, SQLite, 7 dark themes, 13 languages, connection pooling security, and no external dependencies.
Linux Administration · Go / React
Managing Linux web servers without a $50/month control panel. Webadmin is a single static Go binary with embedded React SPAs for Virtual Hosts, Let's Encrypt SSL, UFW Firewall, and PHP-FPM pool management — with no runtime dependencies.
Vanilla JS · Layout Alignment
Translating Figma specs into exact browser CSS alignment is imprecise without visual reference lines. ruler-js renders horizontal and vertical pixel rulers, draggable alignment guides, element snapping, and responsive distance measurement overlays on any web container — zero dependencies.
Vanilla JS · 60fps Ticker
CSS-only marquees stutter on repaint. jQuery plugins bring 30KB of dependencies for an animation loop. marquee-js delivers hardware-accelerated 60fps infinite scroll using a delta-time animation loop, hover-pause, touch swipe physics, and WCAG reduced-motion support — in a single file.
Vanilla JS · Accessible Lightbox
Most lightbox libraries fail on keyboard navigation, focus trapping, and pinch-to-zoom on iOS. gallery-js is a zero-dependency media gallery with proper ARIA announcements, multi-touch physics, and keyboard focus trapping — built to pass accessibility audits out of the box.
Vanilla JS · Positioning Engine
Popper.js is 25KB just to position a tooltip. tooltip-js is sub-2KB — with automatic viewport edge collision detection, smart top/bottom/left/right flipping, configurable delay, and declarative HTML auto-init via data-tooltip attributes. No configuration needed for 95% of use cases.
Vanilla JS · Touch Carousel
Swiper.js is 140KB for a carousel. slider-js delivers pointer-event swipe physics, infinite looping, auto-play timers, pagination dots, and adaptive height in under 4KB compressed — with no external dependencies and full keyboard navigation support.
About this catalogue
Insights into how these solutions were architected and how engagements are handled.
I focus on root-cause diagnostics over superficial symptom patches. Before altering code, I trace the execution path—whether it is identifying memory leaks in log parsers, unindexed queries in Magento catalog collections, or CPU-thrashing timers in ticker scripts. Every solution is engineered to be upgrade-safe, zero-dependency where possible, and fully accessible.
Yes — all open-source projects (Dabiro, admin-dev-tools, frontend-dev-tools, ruler-js, marquee-js, gallery-js, tooltip-js, slider-js, Webadmin, Orqa, Iron Discipline, and proxy-harvester-validator) are public on GitHub and linked above. Each has a deep-dive architectural article on the blog and a dedicated usage reference at modracx.com/docs/.
Both, with inherited codebases comprising the majority. Inherited Magento 2 and Shopify systems, broken upgrades, slow storefronts failing Core Web Vitals, and platform migrations are standard entry points.
They are core delivery requirements rather than separate add-ons. Crawlability, structured JSON-LD data, Core Web Vitals profiling, security hardening, input validation, and dependency hygiene are built into the architecture from day one.
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