Hello.
I'm Constantin
I'm a web dev and maker in Chicago.
I am a full-stack PHP developer. From a very early age I've been fascinated with computers, which led me to pursue a degree in Computer Science. Later, I fell in love with web development and never looked back.
Currently I work full time as a Laravel developer, building internal apps and tools for my employer.

Professional work

I've worked in a variety of industries throughout my career. Here are some of the most recent.
Parking Booking SaaS
Wrote API endpoints for running parameterized reporting in a serverless AWS Lambda environment.
Tech
Node.js • AWS
Transportation & Freight
Full lifecycle app for receiving cargo shipping orders, processing pickups and deliveries, and generating bills of lading. Internal/external APIs connecting various systems.
Tech
Laravel • Vue.js • TailwindCSS • AWS
Nocode SaaS
Front-end UI work for the SPA part of an emerging lowcode/nocode SaaS app. Secure document handling and image manipulation.
Tech
Ember.js • AWS
Online Student Testing
Built new front- and back-end modules and extended functionality for a web-based K12 testing platform.
Tech
PHP • MySQL • jQuery
eCommerce
Built a brand new website for a well-known local retailer. First year sales improved 90% compared to the old website. Made many enhancements to the site, leading to increasing sales year over year.
Tech
PHP • MySQL • jQuery

Closed Source

SaaS (Software as a Service) projects or complex applications that solve a specific problem.
1Secret.app
1Secret.app  1Secret 1secret.app
Share sensitive messages and documents securely via encrypted, short duration, self-destructing URLs.
Laravel • Vue.js • TailwindCSS • Forge • Linode
NextBike
NextBike  NextBike nextbike.mumu.sh
Data tables, charts, and statistics for your Strava cycling activities.
Laravel • Livewire • Alpine.js • TailwindCSS
SVGX
SVGX logo  SVGX svgx.app
Free desktop SVG icon & asset manager for Mac and PC. Paid source code.
Svelte • Electron • TailwindCSS $ buy source on Github
Untitled Color App
Untitled Color App logo  Untitled Color App untitled-color-app.vercel.app
Browser-based color swatch organizer.
Svelte • TailwindCSS • Vercel
Ampersand
Ampersand logo  Ampersand
Unreleased desktop HTML entity browser.
Svelte • Electron • TailwindCSS
Traildemon
Traildemon logo  Traildemon mtb.mumu.pw
Trail condition updates for local mountain bike trails.
Laravel • TailwindCSS
🔭
Secret debugging tool
A desktop debugging tool for PHP that I reversed-engineered from a commercial app, and rebuilt in my own vision. Strictly for personal use.
Svelte • Electron • TailwindCSS

Open Source

Open source projects free to use by anyone.
FileServer
FileServer
Free, open source, self-hosted Laravel application for uploading and serving your own files. Supports local disk storage and Backblaze B2 out of the box.
Laravel • Livewire Github
GitHub Diff
GitHub Diff logo  GitHub Diff git-diff.netlify.app
Get the diff between two GitHub branches, commits, or tags.
Svelte • TailwindCSS • Netlify Github
Craftnautica
Craftnautica logo  Craftnautica craftnautica.netlify.app
Crafting and inventory management tool for Subnautica and Subnautica: Below Zero. Svelte and Vue 2 versions.
Svelte • TailwindCSS • Netlify Github
Vue.js • TailwindCSS • Netlify Github
Tailwind 2 Colors
Tailwind 2 Colors tailwind2-colors.netlify.app
TailwindCSS 2 color palette visualizer.
Svelte • TailwindCSS • Netlify Github
Folio - Crypto coin portfolio
Folio
Crypto coin portfolio and price tracker desktop app.
Vue.js • Electron • TailwindCSS Github
Moviebuff - Movie watchlist
Moviebuff moviebuff.surge.sh
Simple movie watch- and seen-list.
Vue.js • Bulma • Surge.sh Github
Moviebuff monolith - Movie watchlist on Laravel
Moviebuff monolith
Similar to the static Vue app above, this version is more advanced, benefiting from a Laravel back-end. It features more complex list management: move and copy movies between existing and new lists.
Laravel • Vue.js • Bootstrap Github

Packages

PHP and Laravel packages to help me with specific tasks.
📦
php-contrast Github
PHP package for generating accessible/high-contrast color pairs.
php-simple-calendar
php-simple-calendar Github
PHP package for generating a headless representation of the days in a month, in a 7x6 or 7x5 grid. Useful when building calendars with a month overview.
📦
laravel-silent-spam-filter Github
Laravel package for silently filtering out spam in submitted forms. Add your own words and phrases to the banned list.