Johannes Binder, Developer in Vienna, Austria
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Johannes Binder

Verified Expert  in Engineering

Full-stack Developer

Vienna, Austria
Toptal Member Since
March 8, 2021

Johannes is a full-stack developer with over 15 years of experience working in a broad range of industries, including finance, insurance, and eCommerce. Besides conceptualizing and implementing systems from scratch, Johannes also worked on system integrations, legacy systems, and prototypes. Johannes is passionate about delivering high-quality solutions and optimizing the software development lifecycle.


CreativPuls Informationsservice GesmbH
Java, PHP, Adobe ColdFusion, Linux, Polymer, ASP.NET, IIS, C#...
C#, Scrum, React, Single Sign-on (SSO), SignalR, CQRS, ASP.NET...
S7 Haus der Vorsorge GmbH
C#, ASP.NET, Microsoft SQL Server, Docker, Agile, OpenShift, JavaScript, Git...




Preferred Environment

Linux, Docker, Visual Studio, Vim Text Editor, Git, Windows, IntelliJ

The most amazing...

...thing I've developed is a portfolio recommendation algorithm for a robo-advisor in the insurance industry.

Work Experience

Senior Full-stack Developer

2019 - PRESENT
CreativPuls Informationsservice GesmbH
  • Integrated external financial services to the main product line.
  • Added features to apps for some of Austria’s main financial service providers.
  • Implemented an SSO solution that controls access to third-party applications.
  • Designed and implemented an internal tool for product management.
  • Performed security audits and thereby helped increasing confidentiality and integrity of data.
  • Assisted in improving the efficiency of internal workflows.
Technologies: Java, PHP, Adobe ColdFusion, Linux, Polymer, ASP.NET, IIS, C#, Microsoft SQL Server, JavaScript, IBM Db2, MariaDB

Full-stack Developer

2013 - 2020
  • Implemented services for the WhatAVenture Innovation Platform, i.e., SSO, storage, and a data warehouse.
  • Ensured GDPR compliance throughout the platform's services.
  • Extended the Innovation Platform by adding features.
Technologies: C#, Scrum, React, Single Sign-on (SSO), SignalR, CQRS, ASP.NET, Microsoft Power BI, Azure, Git, JavaScript

Lead Full-stack Developer

2017 - 2019
S7 Haus der Vorsorge GmbH
  • Designed and implemented a robo-advisor for the insurance industry.
  • Integrated third-party systems and data into the robo-advisor.
  • Established continuous delivery and agile processes for the team.
  • Worked in and managed a small team of software developers.
Technologies: C#, ASP.NET, Microsoft SQL Server, Docker, Agile, OpenShift, JavaScript, Git, PostgreSQL

Lead Full-stack Developer

2014 - 2017
Boulesse GmbH
  • Stabilized and extended a legacy eCommerce marketplace as part of a small team.
  • Designed and implemented a follow-up marketplace system, including data migration as part of an extended team.
  • Integrated external shops via an API into the marketplace.
  • Worked with and led an international agile (hybrid-remote) team of 5-to-10 people.
Technologies: Magento, PHP, Vagrant, MySQL, Laravel, Linux, JavaScript, Agile, Git

Software Developer | Researcher

2012 - 2015
SBA Research
  • Performed research and development in the areas of software quality, semantic web, process migration, and virtualization.
  • Implemented source code quality plugins for SonarQube.
  • Implemented a tool that tracks, documents, and virtualizes the environment of business processes.
Technologies: Java, Vagrant, VirtualBox, SonarQube, OWL, Protégé, TeX, Business Process Modeling, Apache Maven, IT Security

Full-stack Developer

2009 - 2012
Itellico Internet Solutions
  • Implemented projects (mostly web applications) for clients.
  • Managed and maintained parts of the IT infrastructure.
  • Migrated legacy systems, including data, into up-to-date systems.
Technologies: WordPress, TYPO3, TypoScript, TYPO3 Flow, Drupal, Magento, Linux, Apache, MySQL, PHP, JavaScript, jQuery

Software Developer

2005 - 2008
Atronic Austria GmbH
  • Implemented games for the international gaming market.
  • Worked in embedded and cross-platform environments.
  • Collaborated with multimedia artists in cross-functional teams.
Technologies: Gaming, C++, Embedded Software, Cross-platform

ISAAC Robo-advisor

With the input of financial experts, I designed a robo-advisor and led a small team that implemented a robo-advisor using Agile principles. Because of the novelty of the system, we needed lots of flexibility to deal with changes and improvements throughout the development process.

Innovation Platform
A platform to assist the process of developing a business idea featuring real-time collaboration. I was in charge of implementing microservices for authentication, file storage, data warehousing, as well as feature development, and ensuring GDPR compliance.

Boulesse Marketplace

I designed and led the implementation of a Magento-based eCommerce marketplace for luxury goods, which started in Vienna and later expanded to countries all over Europe. We have integrated ten third-party shop systems. It offers worldwide payments and shipping and has customers all over the world.


C#, Java, PHP, C++, JavaScript, OWL, TeX, Python, Solidity, Kotlin


React, SignalR, Polymer, jQuery


Git, IntelliJ, Vim Text Editor, Visual Studio, Adobe ColdFusion, Vagrant, VirtualBox, SonarQube, Protégé, Apache Maven, Microsoft Power BI, Apache


Agile, Clean Code, Agile Software Development, Scrum, CQRS, Cross-platform


Linux, Docker, Magento, Windows, Azure, OpenShift, WordPress, Drupal, Blockchain, Ethereum, Corda


ASP.NET, Laravel, Bootstrap, TYPO3, TYPO3 Flow

Industry Expertise

IT Security


MySQL, Microsoft SQL Server, IBM Db2, MariaDB, PostgreSQL


Lean, Software Engineering, Distributed Systems, Information Systems, Business Process Modeling, IIS, Machine Learning, Single Sign-on (SSO), Gaming, Embedded Software, TypoScript, Development, Smart Contracts, DApps, Distributed Ledgers, Architecture

2011 - 2014

Master's Degree in Computer Science

Vienna University of Technology - Vienna, Austria

2008 - 2011

Bachelor's Degree in Computer Science

Vienna University of Technology - Vienna, Austria


Corda Certified Developer



Blockchain Specialization



Oracle Certified Professional: Java SE 11 Developer



Professional Agile Leadership I (PAL I)


Professional Scrum Master I (PSM I)


Machine Learning