Full-stack developer, lead developer, scrum master

SUMMARY

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Solving complex real-world problems by utilizing a variety of different algorithmic approaches has always fascinated me. Paired with highly scalable cloud-based software solutions, I was able to prove myself as a reliable and efficient full stack and lead developer in the past.

Roles - Full-stack developer (frontend and backend), lead developer, scrum master
Methods - Project management (scrum, kanban, requirements engineering), prototyping (user stories, wireframing) , test-driven development, machine learning (time-series predictions, RNN, image classifier,...), optimisation algorithms (simulated annealing, ant colony algorithms, A* search algorithms) 
Used technologies - Java, Android, REST, RabbitMQ, SAP (connection), AWS, Azure, Kubernetes, Helm, Kops, Angular, Angular material, ThreeJS, NodeJS, Python, Gitlab, WebSocket, Spring Boot, MS SQL, C++, Qt framework, Docker, MongoDB, Elastic search, HP cloud infrastructure, Docker swarm
EXPERIENCE

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FREELANCING PROJECTS
Process automation in order management                                                                                                                    Duisburg, Germany 
Logistics / AirLiquide S.A. (via Heuremo)                                                                                                                               July 2020 - June 2021

• Automation of truck dispatching process
• Connection to existing SAP solution
• Connection to telematics solution for real-time data evaluation
• Optimisation algorithms for different key metrics, i.e. cost reduction, co2 emission reduction
• Frontend application for data management and optimisation result visualisation

Roles - Full-stack developer, lead developer, scrum master
Methods - Scrum, user stories & wireframing, optimisations (simulated annealing, ant colony algorithms, A* search algorithms)  
Used technologies - Java, RabbitMQ, SAP (connection), AWS, Kubernetes, Angular 2, Python, Gitlab, WebSocket, Spring Boot, MS SQL

AI based shift schedule management                                                                                                                             Duisburg, Germany 
Healthcare (via Heuremo)                                                                                                                                                 May 2019 - December 2020

• Rich backend backbone for highly scalable services using kubernetes hosted on Azure
• Frontend applications to manage data as well as visualisation of shifts
• Systematic and algorithmic creation of shift schedules under constant evaluation of target functions
• Calculating target values with time-series predictions using tensorflow framework

Roles - Full-stack developer, lead developer, scrum master
Methods - Scrum, user stories & wireframing, machine learning  
Used technologies - Java, RabbitMQ, Azure, Kubernetes, Angular 2, Python, Gitlab, WebSocket, Spring Boot, MongoDB, Tensorflow, Jupyterhub, Serverless

Fleet optimisation, monitoring and management                                                                                                          Duisburg, Germany 
Logistics industry (via Heuremo)                                                                                                                                 September 2018 - April 2019

• Rich backend backbone for highly scalable services using kubernetes hosted on AWS
• Frontend applications to manage data as well as visualisation of tour and cargo plans
• Event driven system for real-time event handling
• Open telematics API connection and visualisation of data
• Data mining to generate insights on key metrics, i.e. fuel usage

Roles - Full-stack developer, lead developer, scrum master
Methods - Scrum, user stories & wireframing  
Used technologies - Java, RabbitMQ, AWS, Kubernetes, Angular 2, Python, Threejs, Gitlab, WebSocket, Spring Boot, MongoDB

Augmented reality based order system                                                                                                                         Duisburg, Germany 
The coatinc company                                                                                                                                                February 2018 - September 2018

• Native android application realizing an order system including measuring steel goods for galvanisation
• Transmission of order data including measurements to existing ERP solution
• Measurement system built with ARCore

Roles - Lead developer
Methods - Scrum, user stories & wireframing  
Used technologies - Java, Android, RabbitMQ, AWS, Kubernetes, Angular 2, Python, Threejs, Python, Gitlab, WebSocket, Spring Boot, MongoDB, ARCore

Augmented reality load carrier planning                                                                                                                        Duisburg, Germany 
Klöckner & Co.                                                                                                                                                                 June 2017 - December 2017                                                                                                                                            

• Prototype conception 
• Optimization services for 3D bin packing (evolutionary algorithms)
• Frontend display of packing plans for steel products
• Browser-based application for crane operator
• Browser-based application for dispatcher

Roles - Full software developer, scrum master
Methods - Scrum, user stories & wireframing  
Used technologies - Java, RabbitMQ, AWS, Kubernetes, Angular 2, Python, Threejs, Python, Gitlab, WebSocket, Spring Boot, MongoDB

Wordpress plugin for professional photographers                                                                                                      Aachen, Germany 
Codeneric                                                                                                                                                                             May 2017 - October 2017                                                                                                                                            

• Rebuilding php application using hacklang
• Conception, implementation and testing of wordpress plugins
• Implementation of custom docker images for testing & deployment

Roles - Software developer
Methods - Kanban, user stories & wireframing, custom ci/cd for deployment
Used technologies - php, hacklang, adobe photoshop, html/css, javascript, docker


PART-TIME JOBS
Various topics                                                                                                                                                                     Aachen, Germany
Fraunhofer IPT                                                                                                                                                                      June 2017 - February 2019

• Extension of internal c++ framework to support application development
• Cooperation project with KTH Royal Institute of Technology and Scania
  • Error correction on milling processes
  • Conception & implementation of application prototype
  • Presentation at Scania in Stockholm
• Cloud-based Industry 4.0 prototype project using microservices in cooperation with Leistungszentrum
  • Build up backbone infrastructure on custom cloud solution
  • Conception and implementation of rich backend applications using spring
  • Conception and implementation of web-applications using angular
  • Deployment of various database services (mongoDB, elastic search) 
  • Deployment of software toolings (e.g. gitlab runners for CI/CD usage)

Roles - Software developer, software architect
Used technologies - c++, qt framework, angular, spring, docker, gitlab, custom cloud solution, mongoDB, elastic search, angular material, HP cloud infrastructure, docker swarm


ADIS-Technology GmbH                                                                                                                                                       Aachen, Germany
Software developer                                                                                                                                                                            Apr 2014 - Juli 2016

• Project 1 - Android Application development, including various frameworks and Client Server interactions
• Project 2 - Documentation of the usage for multiple automotive software applications 
• Project 3 - Conception and adaptation of open source project osTicket for usage as production system
• Project 4 - Conception, adaptation and deployment of ecommerce shop system

EDUCATION  -  DEGREES    

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RWTH AACHEN UNIVERSITY                    Aachen, Germany
B. Sc. Computer Science                                             May 2017


Miscellaneous    Projects

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University internship - Operating System for Atmel Atmega Microcontroller
University internship - Segway Roboter including desktop and android applications for remote control