Career

My professional path — with the tech stack for each role.

1. 
   Apr 2024 – presentnow

   Software Development Expert – Tixx

   CTS EVENTIM · Full-time · Bremen · Hybrid

   PHPSymfony›SlimCJavaScriptVue.jsHTML5CSSGitLab›REST-API›CI/CD›Claude Code›Scrum

   • ›Ongoing development & modernisation of EVENTIM.Tixx's backoffice
   • ›Design & integration of REST APIs, single sign-on with Keycloak
   • ›Modularised existing system areas: payment, internationalisation, frontend
   • ›Built a spec-driven development framework, introduced Claude Code into the workflow
   • ›Debugged and fixed issues in a PHP extension and directly in PHP core (php-src)
   • ›Migrated the existing system from Latin encoding to UTF-8
2. 
   Feb 2019 – presentnow

   Owner

   fuewa.systems · Self-employed · Bremen · On-site

   PHPPythonFlutterAndroidiOSJavaScriptHTML5CSSMySQLLXC›KVMProxmoxWireGuardAuthentik›SSOGitLabGit›Managed Hosting›Drohnenfotografie

   • ›Freelance work: computer maintenance & custom development
   • ›iOS & Android app development with Flutter
   • ›Websites: WordPress & custom builds
   • ›Managed hosting: virtualisation, web servers, version control, system upkeep
   • ›Aerial photography
3. 
   Jan 2022 – Mar 2024

   Software Developer

   FP Digital Business Solutions · Full-time · Fürstenwalde/Spree · Hybrid

   PHPSymfony›DoctrinePythonJavaScriptHTML5CSSMySQLDockerAnsibleJenkinsGit

   • ›Backend & frontend solutions for e-government projects (PHP, Python, Perl, Symfony 5)
   • ›PHP upgrade from 5.4/6 to 8.2, Debian 7 → 12 system upgrades
   • ›Electronic signatures & cryptography
   • ›Planned, provisioned & integrated APIs (SOAP, REST)
   • ›Extended deployment pipelines with Ansible, Jenkins, Gitea, Drone
   • ›Supported software audits under BSI TR-01201
   • ›Project & architecture planning, runtime optimisation of existing software
   • ›Onboarded new colleagues, weekly 24/7 on-call
4. 
   Jul 2021 – Dec 2021

   Software Engineer – Platform Solutions

   Anexia · Full-time · Fürstenwalde/Spree · Remote

   PHPVue.jsJavaScriptHTML5CSSJiraGit

   • ›Ongoing development & maintenance of the customer portal
   • ›Customer management, IPAM, VLAN, cloud storage management
   • ›Integrated vSphere vCluster into the customer portal
   • ›Planned & provisioned REST APIs
   • ›Improved automated testing & deployment processes
   • ›Agile development following Scrum
5. 
   Apr 2020 – Jun 2021

   Software Developer

   OUTERMEDIA · Full-time · Berlin · Hybrid

   DrupalPHPJavaScriptHTML5CSSMySQL›REST-APIJiraGit

   • ›Web development with Symfony 2 / Drupal 8
   • ›Automated setup & deployment with Ansible & Jenkins
   • ›Implemented design concepts in HTML, CSS & JavaScript
   • ›Planned & provisioned REST APIs
   • ›Worked directly with clients & external vendors
   • ›Maintenance of existing client websites
6. 
   Feb 2018 – Apr 2020

   Software Developer

   CHECK24 · Full-time · Berlin · On-site

   PHPPythonReact›DoctrineJavaScriptHTML5CSSMySQLAnsibleJenkinsJiraGit

   • ›Web development with Symfony 3 / 4 / 5
   • ›Server monitoring with the ELK stack, Grafana & NewRelic
   • ›Automated setup & deployment with Ansible & Jenkins
   • ›Contributed to the website & backend systems (React, JavaScript, CSS, PHP)
   • ›Integrated cross-company APIs & software
   • ›Automated CSV data pipelines with Python & RabbitMQ, feeding the ML team
   • ›Optimised runtime & memory usage of Python code
   • ›Agile development following Kanban
7. 
   Jun 2017 – Feb 2018

   Junior Software Developer

   notebooksbilliger.de · Full-time · Berlin · On-site

   PHPSymfonyJavaScriptHTML5CSSMySQLJiraGit

   • ›Ongoing development & maintenance of the shop system (osCommerce, PHP, Symfony 3)
   • ›Migrated the existing software to Symfony
   • ›Monitoring with NewRelic & Check_MK
   • ›Worked with Apache Solr
   • ›IT service desk (daily on-call)
   • ›Built automated scripts to fix pricing-error orders
   • ›Planned & provisioned REST APIs
   • ›Agile development following Scrum & Kanban
8. 
   Aug 2014 – Jun 2017

   Apprenticeship – IT Application Developer

   Mentana-Claimsoft · Full-time · Fürstenwalde/Spree · On-site

   PHPSymfony›Java›C#C++CJavaScriptHTML5CSSMySQLJenkins›SalesforceGit

   • ›Built various backend solutions with PHP, C & Java
   • ›Electronic signatures & cryptography
   • ›Web development with Symfony 3
   • ›Built a Salesforce app
   • ›Installed & configured servers & networks
   • ›Agile development following Scrum
   • ›Graduated with 92 out of 100 points