Dániel Sipos

Senior Software Engineer

My motto: an application lives as long as it is being developed — otherwise, time will pass it by.

I am a passionate software engineer who believes that a well-crafted application can simplify everyday life. I am fortunate that software development is both my profession and my passion, which keeps me motivated through long hours of coding. This field is full of challenges — continuous learning and adapting to new technologies are not just expected, but something I genuinely enjoy.

Birthday: 6 Jul 1987
Languages: Hungarian, English
Contacts
Developer pages: GitHubBLOG.siposdani87Google PlayApp Store

Programming languages

Skills

Frontend, Backend, Databases, Cross-platform, DevOps, Code analysis, Testing, Web analytics

Frontend: React
Angular
AngularJS
Next.js
Vue
Nuxt.js
Svelte
CSS3
Sass
Bootstrap
TailwindCSS
daisyUI
Material Design UI
Material UI
CryptoJS
Luxon/date-fns
D3.js
XML/XSD/XSLT
HTML5
jQuery
Astro
SolidJS
Backend: Ruby on Rails
Node.js
Express
NestJS
CakePHP
FlightPHP
Fiber
TanStack Start
FastAPI
Databases: MongoDB
MySQL
PostgreSQL
Firestore
Redis
Cross-platform: React Native
Expo
Flutter
DevOps: Ubuntu
Alpine Linux
Git
Gulp
Webpack
esbuild
Vite
Nginx
S3 Storage
Docker
Kubernetes
Bitbucket
DigitalOcean
GitHub
GitLab
Jenkins
SonarQube
Firebase
Kafka
RabbitMQ
NATS JetStream
MinIO
Prometheus
Grafana
Code analysis: Google Closure
JSDoc
ESLint
RuboCop
SonarLint
Stylelint
Lighthouse
PageSpeed
Testing: Jest
Cypress
Playwright
Testing Library
Web analytics: Google Analytics
Google Tag Manager
Google Search Console
Meta Pixel

My projects

Each project introduces my own development work, which I started as a greenfield project in the given year.

SaaSWebMobileBackend

Since 2015

TrophyMap

Hunting Club Management SaaS

TrophyMap helps hunting clubs manage their operations with confidence. It provides an accurate overview of budgets, hunts, and compliance with the game management plan across hunting seasons.

Fiber
TanStack Start
React
Flutter

View

SaaSWebMobileBackend

Since 2019

I18Nature

App Localization SaaS

Multilingualism is key to the viability of modern applications. This SaaS platform provides a centralized hub for managing translation files, enabling translators and developers to collaborate efficiently.

Flutter
Dart backend
Next.js
Firebase

View

Open sourceCLI

Since 2021

I18Nature-CLI

Command-line interface for I18Nature

A command-line tool for initializing, uploading, and downloading translation files via the I18Nature localization cloud. Supports managing multiple translation files within a single project.

Node.js
TypeScript
CLI
npm

View

Open sourceWebLibrary

Since 2014

SUI-JS

Micro Frontend Framework

A lightweight frontend micro-framework written in TypeScript, documented with JSDoc, and compiled with esbuild. Includes a rich set of predefined UI components.

TypeScript
Frontend
esbuild

View

Open sourceMobileLibrary

Since 2017

SUI-RN

React Native UI Kit

A lightweight UI library written in TypeScript for Expo and React Native. Provides a rich set of predefined form field components.

React Native
UI library
Expo

View

Open sourceMobileLibrary

Since 2018

Expo Rich Text Editor

WebView-based React Native component

A rich text editor component written in TypeScript using React Hooks. Leverages the HTML ContentEditable API and communicates with native code via WebView. Provides basic text formatting options.

Expo
React Native
npm

View

Open sourceMobileLibrary

Since 2019

Expo Maps Polygon Editor

React Native Maps-based component

A multi-polygon editor written in TypeScript for the React Native Maps component. Allows selecting, creating, and modifying areas on Apple Maps and Google Maps, with support for editing multiple polygons simultaneously.

Expo
React Native Maps
npm

View

Open sourceMobileLibrary

Since 2021

CronFormField

Flutter-based cron expression field

A Dart package for Flutter that provides a form field for editing cron expressions in an alert dialog. Extends TextField with enhanced functionality and supports both Standard and Quartz cron expressions with allowed and alternative values.

Dart
Flutter Widget
pub package

View

SaaSWeb

Since 2011

Puzzle Builder

Italian-style puzzle builder

A web-based editor for building and solving Italian-style crossword puzzles. The built-in editor is the core of the application, primarily focused on puzzle construction.

PHP
JavaScript
XML/XSD/XSLT

View

Open sourceWeb

Since 2021

BLOG.siposdani87

Software developer blog

A developer blog built with Svelte that renders markdown articles (MD/MDX/MDsveX). Covers software engineering topics and solutions to problems that are hard to find elsewhere on the web.

Svelte
MD
Vite

View

Open sourceBackendLibrary

Since 2019

Mongoid Fixture Kit

Fixtures for Rails Mongoid

A Ruby gem for loading sample data into MongoDB for testing purposes. Simplifies test data management by defining fixtures in YAML files that are loaded into the database before running tests.

Gem
Ruby
Rails
Mongoid

View

SaaSWeb

Since 2023

eBeirókönyv

Digital Hunter Book

A high-performance marketing and landing page for the TrophyMap SaaS, built with the Astro meta-framework. Features micro-transitions, animations, and SEO-optimized content for enhanced user experience and discoverability.

Astro
SolidJS
TailwindCSS

View