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Stefan BeerSB

Stefan Beer

Fullstack Software Developer (Web/Desktop)

€750/day
Ehingen an der Donau, DE
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Stefan

Many companies work with legacy solutions, Excel spreadsheets, or multiple systems that don't integrate properly. Often, the original developers are no longer available, and no one truly understands or can further develop the existing software.

This is precisely the kind of situation I help with. I have been developing custom software for over 15 years and also take over existing applications, analyze them, and migrate them into a clean, future-proof solution. This way, a stable foundation is gradually rebuilt, upon which you can continue to build.

Instead of adapting to a standard solution, you get an application that perfectly fits your business and reflects your daily needs. This often involves simplifying workflows, making information centrally available, or intelligently connecting existing systems.

It's important to me that the solution not only works technically but also remains understandable for you and is usable in the long term. You have a dedicated contact person who knows your requirements and develops the software in a comprehensible manner.

Ultimately, it's not about the software itself, but about ensuring your business runs smoothly so you can focus on your core operations.
  • German

    Native or bilingual

  • English

    Conversational

Remote only
Primarily works remotely

Experience

  • SoftwareTheke GmbH
    Software Developer
    SOFTWARE PUBLISHING
    November 2024 - Today (1 year and 9 months)
    Ehingen an der Donau, Germany
    As Managing Director and Software Developer at SoftwareTheke GmbH, I am responsible for the conception, development, and ongoing improvement of custom software solutions for businesses. My technical focus lies in implementing modern web applications and apps based on PHP, Node.js, Vue.js, and Nuxt. I prioritize scalable architectures and work with database systems such as Redis, MongoDB, and PostgreSQL.

    Another focus of my work is the development of add-ins using .NET and C#, particularly in the context of Building Information Modeling, where I create project-specific extensions for existing systems.

    Furthermore, I design and implement SaaS solutions, manage their technical deployment, and oversee their ongoing operation. Additionally, I support companies as an external developer, familiarizing myself with existing system landscapes and developing them strategically.
    PHP Vue.js C# Kubernetes Capacitor
  • RATIOsoftware GmbH & Co. KG
    Software Developer in the Bus Tourism Industry
    SOFTWARE PUBLISHING
    April 2015 - October 2024 (9 years and 6 months)
    Ehingen an der Donau, Germany
    I was responsible for the development of desktop and web applications, working with Delphi, PHP, and JavaScript in combination with MySQL, Redis, and Interbase database systems.

    A central part of my role was the conception and implementation of a web platform using a hybrid cloud architecture, which served as an extension to the existing desktop applications. In this context, I also developed associated driver and customer apps to ensure end-to-end digital process mapping.

    Starting February 2020, I additionally took over the management of the development department and received full power of attorney. In this role, I was responsible for both technical and organizational decisions and held overall accountability for the advancement of software solutions.
    PHP JavaScript Vue.js External API Integration Delphi
  • Wilken Software Engineering GmbH
    Software Developer
    SOFTWARE PUBLISHING
    December 2011 - March 2015 (3 years and 3 months)
    Ulm, Germany
    I developed automated test cases for quality assurance of an internal ERP framework, contributing to the platform's stability and further development.

    Additionally, I enhanced the generic user interface based on Silverlight using C# and worked on the conception and implementation of a business process layer in Java to structurally map business workflows.

    Another focus was the development of a generic framework module for data import and export, supporting various formats like JSON, XML, and CSV, and allowing flexible integration into different application scenarios.
    C# BPMN Java Silverlight Research and Development

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Education

  • Computer Science Master
    Ravensburg-Weingarten University of Applied Sciences
    2011
    Anfertigung der Masterarbeit an der University of Manitoba in Winnipeg, Kanada: An Ultrasound Tomography System for Biomedical Imaging
  • Applied Computer Science Bachelor
    Ravensburg-Weingarten University of Applied Sciences
    2008
    Schwerpunkte: Netzwerktechnik und Multimedia

Certifications

  • Web Application Hacking and Security Professional (WAHS)
    EC Council
    2024
    Ethical Hacking Application Security Penetration Testing OWASP Top 10 Cybersecurity

Skill set

Categories