Dipl.Ing.

Peter Hasitschka

Senior Fullstack Developer

Building high-performance web and mobile products and leading teams. Expert in React/TypeScript, Node.js, .NET and React Native with a passion for clean architecture and user-centric solutions.

Core Disciplines

Where I create the most value.

Fullstack Web Development

Delivering scalable solutions from database schema to polished UI.

Mobile App Development

Building cross-platform native apps with React Native.

Technical Leadership & Architecture

Guiding teams and designing robust, maintainable system architectures.

My Toolbox

Technologies and practices I use day-to-day.

Programming Languages

My multi-language skill set lets me apply the right language and ecosystem— from quick prototypes to data-heavy back-ends and performance-critical modules—exactly where each project’s requirements demand it.

TypeScript

JavaScript

C#

PHP

Python

Rust

HTML

(S)CSS

Frontend

I translate complex business ideas into fast, accessible and search-friendly interfaces that scale from MVP to enterprise portals.

React

Next.js

Angular

Tailwind

Vue.js

Redux

Zustand

React Query

Backend

Clean architectures, strong typing and thoughtful data modelling keep server logic maintainable, testable and ready for heavy traffic.

Node.js

NestJS

Express

.NET

Redis

(My)SQL, PostgreSQL

MongoDB

Mobile & Desktop

Shared codebases power native-feeling apps across iOS, Android and desktop while shortening release cycles and ensuring UX consistency.

React Native

Expo

XCode

Google Play Store

App Store

Electron

APIs & Messaging / Authentication

Robust, real-time communication and solid auth keep data flowing securely between microservices, devices and end-users.

REST API

GraphQL

Swagger / OpenAPI

Websocket

Socket.io

gRPC

SignalR

RabbitMQ

OAuth2

JWT

Keycloak

DevOps & Cloud

Automated pipelines and container orchestration turn code into resilient cloud workloads with zero-downtime releases and clear observability.

Docker

Kubernetes

Azure

Azure DevOps

GitHub Actions

Jenkins

AWS

Testing & Quality Assurance

A test-first mindset, continuous monitoring and actionable metrics bake quality into every commit and deployment.

TDD

SOLID

Jest

Playwright

React Testing Library

Cypress

ESLint

Prettier

Grafana

Prometheus

Sentry

Dev-Tools

Efficient build systems, modern package managers and collaborative IDE workflows keep delivery fast and developer focus on business value.

NPM

Yarn

Webpack

Vite

Postman

Jira

Confluence

VSCode

WebStorm

Rider

Cursor

Methodology & Soft-Skills

Agile leadership, continuous improvement and clear bilingual communication align teams and stakeholders around impactful outcomes.

Scrum

Kanban

Agile

CI/CD

German

English

Career Timeline

A concise overview of my professional journey.

2022 - Present

Freelance Fullstack Developer

Architecture and development of complex web- and cross-platform mobile-applications.
Technical consulting for digital-transformation initiatives.

2019 - 2022

Technical Lead / Senior Web Developer – Probots GmbH

Led the development department and held end-to-end technical responsibility.
Delivered large-scale, cross-corporate web projects.
Modernised pipelines and improved CI/CD processes.

2017 - 2019

Technical Lead – FOON GmbH

Spearheaded technical implementation of e-commerce and custom web solutions.
Managed and mentored a multidisciplinary development team.

2016 - 2017

Research Associate / Web Developer – Know-Center GmbH

Performed research on visual analysis of complex graphs.
Built web front-ends for interactive data analysis.

2010 - 2016

Web Developer – Lorem Ipsum web.solutions GmbH

Created online shops and bespoke web applications for various clients.