Hi, I'm Thomas
I can be hired for all kinds of things that have to do with the internet (or as we call it here in Germany: "Das Internetz").
Check out things I've done below or say hi on linkedin
Or would you like to feel like a real terminal wizard? Put on your black hat and have a crack
Why am I a Cloud Engineer / DevOps?
Kubernetes / Container Orchestration
I've been knee-deep in Kubernetes and its variations like k3s since 2017, setting up apps everywhere from big cloud services to the little guys on the edge. This dive into container orchestration is my secret sauce for building tough hybrid clouds that keep services running smooth.
Cloud Native
I'm well-versed in whipping up scalable systems with Docker and LXC/LXD, and I'm handy with tools like Earthly and Helm. My skills with KubeVirt and various CNIs, plus Kubernetes operators, mean I'm all about efficient, service-driven cloud tech.
Infrastructure
I'm big on automation, using Terraform and GitOps to make infrastructure setup and management slick and efficient. My work automates not just deployments but the whole cloud management game.
DevOps and Continuous Integration/Delivery
Automation is key in my work, making delivery systems super efficient. I use GitLab, Packer, and more to build solid CI/CD pipelines, whip up VM images, and keep testing sleek. Handling k3s clusters and OpenStack instances shows my all-in DevOps approach.
Development
I kicked off with Java and Kotlin, then got hooked on Golang for cloud magic. On the frontend, I’ve mastered Vue, Angular, React, and played with Next.js and Astro.js, blending tech expertise with a creative touch across the whole dev lifecycle.
Project List
IoT / Cloud Computing
Full Stack / DevOps / Cloud Engineer
Developing a Multi-Cloud / Edge provisioning system to provide customers with seamless cloud-native technologies from edge to hyperscaler. Automation of CI/CD and deployment for development environments.
Other Responsibilities
Software Architecture, Software Design, System Architecture, Cloud Native Strategy
Development
Microservices, K8S Operators, API Clients, Command Line Clients, OS Daemons, Infra Provisioning Modules
DevOps
Gitlab CI, K8S deployment, VM Build Automation, Test Automation, GitOps, Docker / Buildkit
Infra
K8S cluster provisioning with Openstack, Kubevirt, LXD, Stateful LXC, AWS EC2, EKS, OpenVPN as a Service
- golang
- docker
- kubernetes
- openstack
- buildkit
- helmfile
- helm
- terraform
- gitlab
- earthly
- ytt
- kapp
- kotlin
- typescript
- packer
- postgres
- spring-boot
- kubevirt
- kube-ovn
- linux
Sports
Full Stack Cloud Engineer / DevOps
Conceptualising and building a software platform for an online training system for endurance sports
Other Responsibilities
Cloud Architecture, Technical Lead, Software Architecture, Software Design
Development
Microservices, Coach Frontend, Athlete Frontend
DevOps
Gitlab CI/CD, GCP cloudbuild
Infra
GCP cloudbuild, GCP Cloud Run, AWS EC2, Mongodb Atlas
- golang
- kotlin
- vuejs
- docker
- kubernetes
- spring-boot
- javascript
- git
- rest
- gitlab
- aws
- google-cloud-platform
- serverless
- mysql
- mongodb
- okta
- JUnit
- testify
- jest
Industrial IoT
Full Stack Cloud Engineer / DevOps
Conception & implementation of an Industrial IoT application platform based on Kubernetes running on and integrating both edge and embedded devices
Other Responsibilities
Technical Lead, Systems Architecture, Software Design, Cloud Architecture
Development
Microservices, OS Daemon (Windows/Linux), Dashboard Web App, Command Line Client
DevOps
Gitlab CI/CD, Multi-Target VM Build Automation, K3OS Customizing / Templating, Docker / Buildkit
Infra
IoT Edge Devices, AWS EC2, Provisioning of hybrid edge/cloud K3S cluster, Airgapped Container Distribution
- golang
- kubernetes
- k3s
- k3os
- docker
- linux
- arm
- terraform
- helm
- kustomize
- aws
- vuejs
- edgex-foundry
- gitlab
- spring-boot
- packer
- vagrant
- testify
- JUnit
- jest
QA Reporting App
Full Stack Developer
Building a suite of reporting tools for the management of QA of development & cloud platform delivery.
Development
Microservice, Frontend Reporting Application
DevOps
Github Actions
Infra
Gardener, SAP Neo
- vuejs
- java
- javascript
- tomcat
- neo
- rest
- jira
- github
- web-components
- lit-html
- gardener
- jest
Industrial IoT
Full Stack Cloud Engineer / DevOps
Building an IoT communication platform to collect and enrich data of the company's hardware devices
Other Responsibilities
Technical Lead, Software Design, Systems Architecture, Operation Strategy
Development
Microservices, IoT Connectors, Service Dashboards, Web Apps
DevOps
Gitlab CI/CD, Build Agent Customisation, Docker / Buildkit
Infra
MQTT cloud / edge, IoT Edge Devices, K8S/K3S
- golang
- docker
- kubernetes
- java
- kotlin
- git
- spring-boot
- gitlab
- rest
- mqtt
- mongodb
- postgres
- protobuf
- junit
- jmeter
- cucumber
- testify
- spring cloud contract
Video streaming service
Mobile Application Developer / DevOps
Development of new features for the android app / Migration from Jenkins to Gitlab
Other Responsibilities
Team Lead, Deployment & Delivery, Cloud Architecture
Development
Android App
DevOps
Jenkins, Gitlab CI/CD, Firebase Integration
Infra
AWS EC2 / AWS S3, Firebase TestLab
- java
- android
- kotlin
- gitlab
- rest
- dagger
- jenkins
- rxjava
- espresso
- JUnit
Food Retail
Full Stack Developer
Development & operation of microservices for a large scale logistics project in customer retail
Development
Microservices, Micro Frontend, Connecting to external JMQ Systems
DevOps
Jenkins CI, Docker / Docker-Compose
Infra
GCP, K8s, Minikube, Kafka
- java
- kubernetes
- docker
- spring-boot
- kafka
- amq
- polymer
- git
- google-cloud-platform
- jenkins
- mysql
- rest
- JUnit
- spring cloud contract
- jmq
Diverse
Full Stack Developer, Coach & Consultant
Supporting FE development in projects for external customers in energy & insurance
Other Responsibilities
Coach, Software Design
Development
Web Apps, Technology Coaching (WebComponents / FE Architecture)
- javascript
- polymer
- git
- docker
- lighthouse
- web-components
- lit-html
- lit-element
Travel
FE Developer, Coach & Consultant
Support and performance audit / performance improvement for a web-components based CMS
Other Responsibilities
Technical Lead, Coach, Software Design
Development
CMS Frontend, Coaching WebComponents / Polymer 2
DevOps
Gitlab CI/CD, Docker / Buildkit
- javascript
- polymer
- git
- docker
- lighthouse
- web-components
Fireworks as a service Startup
CTO
Automation of the entire process from order to execution, focusing on customer experience.
Other Responsibilities
Technical Lead, System Architecture, Cloud Architecture, Agile Person
Development
REST API, Salesforce Customisation, Slackbots, BI Customisation / SEO
DevOps
Jenkins CI/CD
Infra
Managed Server
- apex
- php
- javascript
- salesforce
- golang
- slack
- google-analytics
- google-tag-manager
- seo
- firebase
- polymer
- web-components
Video streaming service
Mobile Application Developer
Developing a new video player library based on ExoPlayer and integrating DRM
Development
Android App, DRM implementation
DevOps
Jenkins CI / CD
- java
- android
- dash/widevine
- rest
- json
- git
- jenkins
- rxjava
- drm
- JUnit
Smart Companion App
Mobile Application Developer / Project Lead
Planning & Prototyping a smart companion app for personal development.
Other Responsibilities
System Architecture, Technical Lead, Agile Person
Development
REST API, APNS Gateway, iOS App, Product Landingpages
Infra
Google App Engine, Testflight
- golang
- swift
- google-app-engine
- ios
- objective-c
- testflight
- fabric
- chrashlytics
- rest
- json
- mysql
- firebase
- apns
- http2
Video streaming service
Mobile Application Developer
Refactor & Relaunch of the mobile app
Development
ChromeCast Lib Integration, DRM, User Features
DevOps
Jenkins CI/CD
- java
- android
- rest
- json
- git
- jenkins
- chromecast
- drm
Garbage Collection Scheduler App
Mobile Application Developer
Porting a hybrid html5 app to windows mobile
Development
Cordova -> Windows Mobile
- c#
- .net
- windows-phone
- html5
- bower
- npm
- cordova
Photo Sharing Startup
Founder CEO/CTO
Innovative event-based photo albums with focus on user privacy.
Other Responsibilities
Founder, Systems / Infrastructure Architecture, Software Design, Cloud Architecture, Agile Person
Development
Rest API, QR Code Processing Service, OCR, HA Image Store, Native Mobile Applications, Web Apps, Web Widgets
DevOps
Jenkins CI/CD, Linux Server
Infra
Jira, Exim, Root Servers, Artifactory
- java
- groovy&grails
- cloud privacy
- javascript
- spring-security
- golang
- spring-acl
- android
- ios
- objective-c
- jenkins
- tomcat
- piwik
- mysql
- linux
AR
Mobile Application Developer
Development of an AR app for iOS for a sports company
Development
Mobile Application, Augmented Reality
- objective-c
- ios
- metaio
- rest
- json
- php
- xcode
Travel
Software Developer, Software Consultant
Developing a CMS for Travel Destinations, also white-labelling for various b2b customers.
Development
CMS backend, Web Apps, Mobile Apps
- html
- javascript
- php
- jquery
- css
- smarty
- soap
- xml
- rest
- json
- ovi-apps
- mysql
- java mobile
Real Estate
Software Developer, Software Consultant
Designing and developing a maintenance system for real estate assets.
Other Responsibilities
Systems Architecture / Database Design
Development
Soap Services, Web Apps, Desktop & Mobile Applications
Infra
IIS, SQLServer
- javascript
- c#
- .net
- html
- soap
- xml
- windows-server
- mssql