AHFreelancer profile translated to English.
Back to original languageAbout Andreas
Mr. Herbert is characterized by his diverse professional experience as a freelancer, manager, company founder, and consultant. His expertise, accumulated over **more than 25 years**, spans the planning and implementation of complex IT projects, founding and advising startups, leading up to **75 employees**, and the role of Creative Director, uniting various company divisions.
Technically, Mr. Herbert specializes in backend development, particularly with the use ofvery large databasesin the terabyte range with many millions of customers, message queues, and the design and development of **API interfaces**.
German
Native or bilingual
English
Fluent
Spanish
Basic
Russian
Basic
Can work on-site
Karlsruhe (up to 50km)
Experience
- Startup Duels.deFounderMarch 2025 - Today (1 year and 3 months)• Founding of a startup, development of a new, browser-based online role-playing game (WIP).Used Technologies: PHP - MySQL - JavaScript - Debugger - PHPUnit - Apache• Laravel 12 - Docker - Git
- EnBW AGFreelance Software DeveloperENERGY AND UTILITIESFebruary 2020 - March 2025 (5 years and 1 month)• Further development of internal software for customer billing and market communication• Migration of the software from the service provider to in-house operation• Implementation of the gas price brake, electricity price brake, and VAT adjustments in billing• Realization of several format changes and format adjustments according to legal requirements within time and budget• Compliance with the requirements of balance sheet allocation• Reduction of contracts requiring manual intervention from 250,000 to under 40,000Used Technologies: PHP 7 - PHP 8 - MySQL - Amazon AWS - HTML5 - Scrum• Javascript - Git - Agile - Frontend - Backend - NPM - SASS - CSS3 - Azure - JSON - Postman - API - Amazon S3 - Linux - Symphony - Docker - CI/CD - Kanban• Graylog - NoSQL - Swagger - Codeception - PHPUnit - DevOps - Grafana - Conceptboard - Cleancode - Amazon RDS - Slack - Edi@Energy - EDIFACT - GPKE• IFTSTA - ORDERS - ORDRSP - MSCONS - APERAK - UTILMD - UTILTS - Sprint Planning
- Rothe-MotorsportFreelance Software DeveloperJanuary 2017 - December 2017 (11 months)• Development and customization of websites and shop softwareUsed Technologies: PHP - CMS - CSS3 - Bootstrap - JavaScript - MySQL - Magento2
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Education
- Training as a Technical Assistant for Informatics2000Ausbildung zum Technischen Assistenten für Informatik
- theoretical university entrance qualificationVocational High School1997theoretischen Fachhochschulreife