(00) / About

Paul Julian Heise.
Engineer. Founder. Builder.

Senior software developer from Germany, based in Prague. Ten years of shipping.

(01) / 2014 · First code

It started
with an iPhone.

iOS apps in Objective-C before anything else. Computer science through school, curiosity through everything.

(02) / 2017 · The trade

Learned the trade,
shipped for real.

IT specialist apprenticeship plus full-stack work at CDS Service GmbH. PHP, Laravel, Linux servers, real production.

(03) / 2021 · Founder

Founded once.
Then again.

OnlyFabulous, a marketing agency. Then Estateable, a blockchain real-estate platform. Product, team and the whole stack, end to end.

(04) / Today · Independent

Independent.
AI on every step.

Freelance engineer for web, APIs and databases. Frontend for INWX, one of Europe's top domain registrars. Fast, senior quality, AI-native.

Work with meThe full path
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(00) / About

About Me
Senior developer from Germany.

Paul Julian Heise avatar

Paul Julian Heise

Software Developer

/ Bio

I'm Paul. Senior software developer, originally from Germany, now working remotely from Prague.

Ten years of shipping software. Web apps, APIs, databases. Two of my own companies along the way. The instinct never changes: build it, ship it, make it better.

Ambitious. Restless. I love making things. I work with AI on every step. I move fast and ship clean. No excuses.

(01) / Path

A decade of work. Building, leading, shipping.

  • 01
    2025

    Freelancer / OSVČ

    Independent

    Web Development, Backend / API Development, Database Design

    Technologies:
    Next.js, React, Node.js, Fastify, PostgreSQL, MySQL, MongoDB, Docker, Kubernetes, Kafka, Tailwind CSS and more.

  • 02
    Since 2025
    INWX GmbH

    INWX GmbH

    Freelance / Frontend

    One of Europe's top domain registrars. Freelance frontend work on their web interfaces and user areas.

    Technologies:
    Modern Frontend Technologies

  • 03
    Feb 2023 - Feb 2025
    Estateable UG

    Estateable UG

    Founder / Developer / CEO

    Blockchain-based platform for real estate management, sale and purchase. All software built in-house. I led and engineered it as part of the development team.

    Stack:
    Next.js, Node.js, Solidity, Ethereum, PostgreSQL, Docker, Kubernetes.

  • 04
    2021 - 2023
    OnlyFabulous

    OnlyFabulous

    Founder / Developer / CEO

    Marketing agency. Branding, performance campaigns and digital products for early-stage brands. The full software stack was built by me alone. Website, management system, client onboarding flows, everything end to end.

  • 05
    2017 - 2020

    CDS Service GmbH

    Full Stack Software Developer

    Technologies:
    PHP, Laravel, JavaScript, jQuery, MySQL, REST APIs, Docker, SOAP, Linux Servers, Git

  • 06
    2017 - 2020

    Carl-Severing-Berufskolleg

    IT Specialist Apprentice

    Technologies:
    Java, Networking Basics, SQL, Linux, Docker, Linux Administration, HTML and CSS, Database Architecture, Software Architecture

  • 07
    2014 - 2017

    Rudolph Brandes Gymnasium

    A-Levels, with Focus on Computer Science

    Technologies:
    Java, Pascal, Basic C#, HTML, CSS, fundamentals of algorithms and data structures

  • 08
    2014

    Start of my IT Experience

    First Tech Experience, Developing of iOS Applications

    Technologies:
    Objective-C, Xcode, UIKit, Baisc Swift