$ whoami _
Hi, I’m Peter. I am a Fullstack Web Developer, Bug Hunter, and Hacker by Heart (more in the traditional meaning of the term.. I just love creativity, code, and technology).
I work currently as a self-employed Freelance Developer and am open for hire.
Originally I am from the beautiful Black Forest Area in Germany, but I spend as much time as possible in Thailand (Bangkok Metropolitan Area)
Curriculum Vitae
Experience
01.01.2021 - Present
Web Developer / Bughunter
Self Employed at “Peter Siebold - Software Development & Consulting”
Conception and Development of Websites including deployment. Installation and configuration of VPS with Web- and Mailserver.
01.01.2020 - 31.12.2020
Senior Web Developer, Remote
United Planet Gmbh Freiburg, Germany <-> Bangkok, Thailand
Responsible for the Development of a React based Chat Application built with TypeScript, xmpp as the underlying messaging protocol, and Jitsi for video conferencing.
Maintainer of the Web Buildsystem (TypeScript, Webpack, Babel, Jasmine, Gulp) for the Intrexx Web Frontend Code.
01.01.2017 - 31.12.2019
Web Development Team Lead
United Planet GmbH Freiburg, Germany
Planning and Coordination of Web Development projects and releases in a team of seven developers.
Introduction of TypeScript, and a node.js + webpack / babel based build system for the web code, Introduction and Integration of Unit Tests for the Web Code.
Conception and Planning of future releases and evaluation of current technology trends. As well as Preparation of various concepts and proposals for possible refactorings of the web code with modern web frameworks such as React.Js and Vue.
Part of the company's internal security team. Evaluation of security issues and security audits. Bug Hunting (OWASP Top 10, especially XSS, CRSF, SQLi, IDOR, Open Redirect)
01.05.2015 - 31.12.2019
Instructor for Apprentices
Voluntary Activity at United Planet GmbH Freiburg, Germany
Supervision and Training of the Web Development Apprentices. Guidance and Preparation for their exams.
"Training of trainers in accordance with AEVO (trainer aptitude regulations)"
01.01.2013 - 31.12.2016
Web Developer, Intrexx Web Team
United Planet GmbH Freiburg, Germany
Responsible for the mobile web development part of the company's product (enterprise business portals for the intranet and extranet).
Web Development mainly for mobile devices.
Refactoring of XML / XSLT Transformations and switch from Xalan to Saxon.
Implementation of layout grid systems and solutions for responsible design.
01.09.2010 - 31.12.2012
Online Marketing, Webdesign
United Planet GmbH Freiburg, Germany
Implementation of a simple recommendation system for the company's application store.
Maintenance and Improvement of the Company's Website with HTML, CSS, JavaScript and PHP.
Data Querying and Preparation with SQL for E-Mail Marketing and Customer Analysis.
Creation of landing pages for marketing campaigns.
Education
01.09.2010 - 01.10.2012