Hi, I'm

Fortune Zviregei.

I'm a Software Engineer.

Turning Ideas Into Impact.

Focused on creating elegant solutions to complex problems, I specialize in building modern web applications with cutting-edge technologies.

Explore My Work

Skills

Tools and methods I rely on to solve problems and ship great software.

Programming Languages

HTML
CSS
SASS
JavaScript
TypeScript
Ruby
PHP
Python
JSON

Frameworks & Libraries

React.js
Next.js
Redux
Vue.js
Angular
Ruby on Rails
Tailwind
jQuery,

Databases

PostgreSQL
MySQL
MariaDB
MongoDB
Redis

Testing & QA

Cypress
Jest
Capybara
RSpec
Jasmine icon
Jasmine

DevOps & Cloud

Docker
Azure
AWS
Kubernetes
GitHub Actions

Build Tools & Package Managers

NPM icon
NPM
Yarn
Webpack,
Vite
Babel icon
Babel
Grunt
Gulp icon
Gulp

Developer Tools, Practices & Principles

SOLID icon
SOLID
DRY
TDD icon
TDD
BDD icon
BDD

Experience

My professional journey and career milestones.

Software Developer
Treehouse
Apr 2022 - May 2025
Gdańsk, Poland
At Treehouse, an online technology school, I was responsible for building and maintaining full-stack solutions using Ruby on Rails and React. My work spanned from backend API development to frontend performance optimization and DevOps automation.
Key Achievements
Introduced asynchronous data fetching with Elasticsearch, reducing search times by 15%.
Spearheaded billing migration to Stripe, improving observability and handling $50K+ monthly.
Optimized database queries and added Redis caching, cutting server response times by 15%.
Automated CI/CD with CircleCI and Docker, improving deployment speed by 30%.
Reduced frontend JavaScript payloads by 30% using treeshaking and lazy loading.
Actively contributed to code reviews and mentored junior developers.
Technologies Used
Ruby On Rails
React.js
Git
CSS
SASS
HTML
AWS
Docker
Kubernetes
Ruby
JavaScript
Frontend Developer
Xenon Partners
Sep 2021 – Mar 2022
Gdańsk, Poland
At Xenon Partners, a venture capital firm, I focused on improving the frontend experience for their SaaS portfolio using Vue.js and React. This involved UI/UX improvements, SEO optimization, and creating reusable components.
Key Achievements
Revamped DreamFactory landing pages, increasing engagement by 18%.
Enhanced SEO and Core Web Vitals, achieving a 2-second improvement in load times.
Built reusable UI libraries using Storybook, accelerating development cycles.
Applied responsive design and cross-browser testing using Cypress and Jest.
Maintained high-quality standards through code reviews and GitFlow practices.
Technologies Used
Jekyll
Ruby On Rails
HTML
CSS
SASS
Git
AWS
TypeScript
Freelance Software Developer
Zapeture Creations
Feb 2019 - Aug 2021
Bydgoszcz, Poland
As a freelance web developer, I designed and built websites for small businesses and private clients across various industries. I handled projects end-to-end, from initial consultations and design mockups to development, deployment, and post-launch support.
Key Achievements
Delivered over a dozen responsive, SEO-friendly websites tailored to clients’ branding and business goals.
Built contact forms, booking systems, and simple CMS functionality using HTML, CSS, JavaScript, and WordPress.
Helped several local businesses establish their online presence, increasing customer reach and engagement.
Provided ongoing technical support and website maintenance, ensuring long-term client satisfaction.
Gained repeat business and referrals through high-quality work and clear communication.
Technologies Used
PHP
MySQL
Node.js
Bootstrap
HTML
CSS

Projects

A showcase of my recent work and creative solutions.

A Page a Day

A creative coding series built as a monorepo, where each day I design and develop a standalone page or component using various modern frontend technologies.

React.js

Tailwind

HTML

JavaScript

JSON Processor

A fast and user-friendly web tool for validating, formatting, and previewing JSON data in real-time. Built to enhance developer productivity with instant feedback and syntax highlighting.

Next.js

Tailwind

Zassword

A minimal, mobile-friendly password generator built with Next.js and Tailwind CSS. Zassword allows users to quickly create secure, random passwords with adjustable character rules and instant copy-to-clipboard functionality.

Next.js

Tailwind CSS

ZQR Forge

A blazing-fast QR code generator built with pure HTML, CSS, and JavaScript. ZQR Forge lets users instantly generate QR codes for any website or text input. No frameworks, no dependencies, just performance.

HTML

CSS

JavaScript

Zingo Translate

Zingo Translate is a lightweight, responsive translation app built with Next.js and Tailwind CSS. It uses the Google Translate API to deliver accurate, real-time translations across multiple languages with a minimal, ad-free UI.

Next.js

Tailwind CSS

Closed Source

Gdańsk SDA International Church Website

A modern, fast, and accessible church website with a simple admin area to manage pages, announcements, events, videos, departments (ministries), Sabbath programme, and contact/prayer request forms. Designed to be easy to update and friendly on mobile.

Closed Source

Arise Summer Camp 2025 Website

A dynamic, responsive website for a Christian summer camp taking place in Gdansk, Poland (June 19-22, 2025). The site features live activity tracking, real-time schedule updates, and comprehensive camp information.

GitHub Activity

Track my daily coding activity and contributions across various projects and repositories.

Contribution Activity

Past year of GitHub activity

View on GitHub

Less

Total

895

Commits

Pull Requests

Current Streak

Featured Articles

Sharing knowledge and experiences through articles on web development and technology.

June 28, 2025

How to Add a Dynamic Favicon in Next.js (Based on User Theme)

Learn how to add a dynamic favicon to your Next.js site that adapts to light and dark mode using the prefers-color-scheme media query. I walk through a real-world use case from a church website I built, showing exactly how to generate, organize, and implement separate favicons for each theme without any extra JavaScript. Clean, simple, and theme-aware.

Next.jsFaviconWeb Development

June 17, 2025

Introduction to Software Design Patterns

Design patterns are reusable solutions to common problems in software design. Think of them like templates or recipes that help you write cleaner, more maintainable code. They’re not rigid rules but proven strategies used by developers for decades. Whether you're coding an app from scratch or maintaining a massive codebase, patterns help make your code more understandable, flexible, and scalable.

Software Design Patterns

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Hi, I'm

Fortune Zviregei.