Fachlicher Schwerpunkt dieses Freiberuflers

React, Javascript, nodeJS, Python, Apache Kafka, build pipelines, deployment, CI, CD, Docker

verfügbar ab
verfügbar zu
100 %
davon vor Ort
100 %
PLZ-Gebiet, Land


Einsatzort unbestimmt

50 km

Ich möchte ausschließlich für Projekte in diesen Einsatzorten kontaktiert werden.


  • CTO


03/2017 - Heute

3 Jahre 3 Monate

Maintaining infrastructure & tech stacks for projects

Software Engineer
on request
  • Maintaining infrastructure & tech stacks for Limebit projects (Python, R, Laravel, React)
  • Implementation agile Scrum development workflow (Jira, Bitbucket, CI/CD Pipelines)
  • Implementation DevOps Workflows (Bitbucket Pipelines, AWS CodePipeline, Docker, ECSClustering, Auto-Scaling, Logging & Monitoring, Networking)
  • Development Machine Learning apps (Python) & Infrastructure (especially AWS Lambda, deployments via Zappa)

12/2018 - 03/2019

4 Monate

Infrastructure & Development

Bündnis 90/Die Grünen - party of the German Bundestsag
  • Initial setup of Development & Deployment Infrastructure, setup of different micro services
  • Frontend Development with React & Typescript
  • Provided a Gatsby starter package that is now featured on the Gatsby website: https://github.com/OFranke/gatsby-typescript-scss-docker
  • Tech Stack: React (Gatsby), Docker, Gitlab, Netlify, CraftCMS, GraphQL, Algolia, Libpixel

09/2018 - 11/2018

3 Monate

Data Management Plattform

Customer Energy Sector
  • Set up a micro service infrastructure for data stream processing with Apache Kafka, Apache Spark, MongoDB
  • Build development environment for data scientists
  • Set up a complete data workflow from simulating data streams to splitting load on different Kafka workers, processing data in Spark and storing data in MongoDB
  • Tech Stack: NodeJS, Apache Kafka, Apache Spark, MongoDB

06/2017 - 10/2018

1 Jahr 5 Monate

Software Engineering

Freelance Software Engineer
About You GmbH – Shop Applications
  • Development shop application frontend (React, Typescript, MobX/Redux, Jest, Webpack), Coordination between UX team and developers
  • Relaunch of complete Frontend, including transition from Redux to MobX
  • Tech Stack: React, Typescript, MobX, Redux, Jest, Laravel (Backend PHP), Jenkins (QA and Test Automation)

02/2017 - 06/2017

5 Monate

E-Commerce Platform zoo.de

zoo.de Social Media GmbH
  • Built the biggest German platform for pet supplies (
  • 100.000 products)
  • Interim project lead, Maintaining and developing the platform (PHP, Laravel)

04/2016 - 02/2017

11 Monate

Development of customer loyalty and analytics software

Technical Lead Customer Loyalty Startup
Booni UG (haftungsbeschränkt)
  • Development of customer loyalty and analytics software in SME retail business
  • Implementation of REST-Services, React Native app development, In-store tracking with iBeacontechnology
  • Setup Server-Infrastructure on Amazon Web Services (AWS), Release Management, QA, mentor for staff and interns

02/2013 - 04/2016

3 Jahre 3 Monate

Development of open source software SugarCRM

Mitel Deutschland GmbH
  • Development of company wide used open source software SugarCRM
  • Implementation of APIs for communication with ERP-Systems and multiple inhouse apps
  • Support of global rollout for SugarCRM cloud system
  • Planning of ETL-processes and data migration from SalesForce, SAP, JDE, ProSales
  • Coordination between developers from UK, Canada, Philippines, direct cooperation with the SugarCRM team



Customer: Gridcoin Energy


  • Development of simulation software for micro grids
  • blockchain based energy trading
  • simulation of grid components (wind parks, industry consumers, storage solutions) built as micro services with Docker, connected to a real time frontend via WebSockets and WebRTC
  • Tech Stack: Docker, Django (Python), NodeJS, React, WebRTC


Produkte / Standards / Erfahrungen

About me

I am a software engineer by heart and I love to code every day – I kind of feel uncomfortable when there is no VS Code or at least a Terminal opened on my screen. I dont stick to a specific language or specific frameworks, but I feel a special love to JavaScript and Python.


  • Bachelor in Computer Science
  • Foundet [Company name on request] in 2016
  • Managed to form a small but efficient engineering team and established an agile development workflow at Limebit

Short Summary

  • 8 years of work with professional developer teams (IBM, About You, Mitel), focus on software development in national and international projects
  • Experienced with a lot of languages & technologies like NodeJS, Python, React, React Native, Redux, MobX, Webpack, nginx, Docker
  • Experience in building cloud infrastructure on Amazon Web Services (EC2, Elastic Beanstalk, ECS, CloudFormation, CodePipeline, RDS, Route53) and CI/CD Workflows (Docker, Build Environments, Bitbucket Pipelines, AWS CodeCommit, CodeBuild & CodeDeploy)
  • Experience as technical lead in IT-Startups, Implementation of SCRUM-Methods, CI/CD Workflows, DevOps

Super Strong Skills in

  • Handling data from REST APIs, GraphQL and even XML
  • Writing modular, maintainable code
  • React & Typescript
  • Handling business logic, manage application states, think about edge cases
  • Building convenient dev environments with linting, commit hooks, auto format and more
  • Setting up build pipelines and manage release processes
  • Building Infrastructure with Docker containers, microservices, networking

Things I am working on to Improve

  • Building super fancy CSS animations (though I can do basic stuff)
  • Designing things from ground – I probably have a bad taste and better leave that to real designers, though I can still comment on designs from a UX perspective
  • Actually doing test driven development - I like the things that [URL on request] is doing very much but I haven’t come to try it out yet


  • Bachelor in Computer Science