MG Mike Gebert
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Senior Software Engineer

Mike Gebert

Robust web applications with PHP, Symfony and DevOps — with modern workflows that lighten teams' workload

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Mike Gebert

About me

For nearly a decade I have been building web applications focused on PHP and Symfony. My background is a bit unusual: before software I trained and worked as a chef — the discipline and craftsmanship from the kitchen still shape the way I build software. Across my career I have led migrations, piloted teams and shipped greenfield APIs.

Away from the computer I sail, play chess or go bouldering. When I am at it, projects of my own take shape alongside the day job — a rental management system, a CRM for a drama school, a small game. The same curiosity runs through all of it: whether new routes on the rock or new patterns in code.

10+ Years of experience
6 Positions
11 Own projects

Skills & Expertise

AI-FIRST

AI

  • Level 4/5
  • Level 4/5

Programming

  • Level 5/5 · Core strengths
  • Level 4/5
  • Level 4/5
  • Level 4/5
  • Level 4/5
  • Level 3/5
  • Level 2/5

Frameworks

  • Level 5/5 · Core strengths
  • Level 4/5
  • Level 3/5
  • Level 3/5
  • Level 3/5
  • Level 3/5
  • Level 2/5

Tools & Infrastructure

  • Level 4/5
  • Level 4/5
  • Level 4/5
  • Level 4/5
  • Level 3/5
  • Level 3/5

Languages

  • Level 5/5 · Core strengths
  • Level 4/5

Experience

united-domains AG

05/2022 — Present

PHP Software Engineer

  • Feature development
  • Project lead
  • Database specialist
  • PHP
  • Symfony
  • MySQL
  • Docker
  • Angular
  • JavaScript

Asuro GmbH

10/2021 — 04/2022

Senior Symfony PHP Developer

Team lead & senior software engineer

  • Project and team lead
  • Greenfield REST API
  • Symfony
  • REST
  • Docker
  • PHP

Liebscher & Bracht Schmerzfrei GmbH

10/2020 — 09/2021

Senior PHP Developer

  • Building Shopware plugins to integrate 3rd-party software
  • Project lead
  • Shopware
  • PHP

FormMed Healthcare AG

07/2020 — 10/2020

PHP Developer

  • Responsible for the Shopware application
  • Point of contact for the Shopware agency
  • Shopware
  • PHP

LILLYDOO GmbH

10/2017 — 06/2020

Senior Web Developer

Team pilot, project lead

  • Frontend and backend development
  • Database administration
  • Feature and migration expert
  • Sylius
  • Symfony
  • PHP
  • MariaDB
  • Docker
  • MongoDB
  • Vue.js

Sovendus GmbH

10/2015 — 09/2017

Web Developer

  • Game development in JS
  • Laravel APIs, AngularJS, Vue.js
  • JavaScript
  • HTML
  • CSS
  • Laravel
  • PHP
  • AngularJS
  • Vue.js

Projects

Client projects

Schauspielschule Lila

Web presence on a Netcup VServer using Docker, Traefik and CrowdSec.

  • Docker
  • Traefik
  • CrowdSec
  • Linux

CRM Schauspielschule

Custom CRM built with Symfony 6.4 & MariaDB 10, deployed by release tag on Netcup.

  • Symfony 6.4
  • PHP 8.4
  • MariaDB 10
  • Docker
private

Anumi Voting

Voting app for shared event rankings — a Flutter app with a Python backend and React admin.

  • Flutter
  • Python
  • React
  • Firebase

Hope for Children Kenya

Static nonprofit website built with Astro 5 & Tailwind CSS, served via Docker and Traefik.

  • Astro 5
  • Tailwind CSS
  • Docker
  • Traefik
Code on GitHub ↗

Menü-Abstimmung

Menu voting for a wedding: guests enter a choice per person, the couple follow a live dashboard, and the organisers get a daily summary by email. Since retired, the code archived.

  • Node 22
  • Fastify
  • SQLite
  • Nodemailer
  • Docker

Side projects

private

Mietfux

Rental management for room sublets, built with Symfony 7.4 & EasyAdmin 5 — including CSV-based bank reconciliation, automated rent postings and 2FA.

  • Symfony 7.4
  • PHP 8.4
  • MariaDB
  • EasyAdmin 5
  • FrankenPHP
  • Docker
offline

Movie Voting Tool

Voting app for movie nights, built on Symfony 4.4 & MongoDB.

  • Symfony 4.4
  • MongoDB
offline

Adventskalender

JavaScript advent calendar with mini games.

  • JavaScript
  • HTML
  • CSS
private

Cimbria-Fidelitas Account-Tool

Finance management for club members, built with FastAPI & SQLite.

  • FastAPI
  • SQLite
  • Docker
private

Reederei

Mobile business simulation about running a shipping company — Flutter & Flame with Riverpod, Drift and Firebase. "Reederei" is only a working title so far, not the final name.

  • Flutter
  • Flame
  • Riverpod
  • Drift
  • Firebase
private

Raspberry Pi Backup

Versioned pull backups of the Netcup server onto a Raspberry Pi — an rsync mirror plus restic snapshots, monitored via Healthchecks.io.

  • Raspberry Pi
  • restic
  • rsync
  • Healthchecks.io
  • Linux

Education & Training

Education

  • IT Specialist – Application Development

    Finish IT

    2013 — 2017 · Graduated with 86 points

  • Computer Science (no degree)

    Karlsruher Institut für Technologie (KIT)

    2013 — 2015

  • Chef apprenticeship

    2002 — 2005 · Final exam: 89 points

Conferences & Training

  • betterCode(PHP) 2023 — "Turning sticky notes into software"

    2023

  • SymfonyWorld Online 2021 — OOP & Design Patterns

    2021

  • SymfonyCon Amsterdam 2019 — API Platform, Profiling PHP

    2019

Let's talk.

Frankfurt am Main By arrangement
Download CV (PDF) ↓