Portfolio

April 2024 - March 2025

Siemens Internal References

Migration of Siemens internal references app from monolithic server to edge computing.

January 2021 - April 2024

IT management system

Developed an IT management system to streamline data management processes and improve functionality and reliability.

May 2022 - January 2024

Livil Flags App

Message aggregation and assistant app for in-car and mobile usage.

October 2020 - December 2022

Senior Manager Frontend Developer for www.sixt-leasing.de

Working on the migration from Angular to React for the six-neuwagen.de website, integrating Drupal CMS with GraphQL, and advocating for a monorepo structure.

December 2021 - December 2021

Bar Webpage with Google Sheets Integration using Wix.com

A webpage for a bar with a menu, store and contact form. The menu is managed through Google Sheets and the contact form and store is managed through Wix.com.

January 2020 - September 2020

Frontend developer at Relaxdays GmbH

Created a tool for the content team to supprot retail platform, implemented UI/UX designs, contributed to PHP Laravel backend development, coached team on tool usage and comprehensive understanding of product development, optimized Scrum processes, supported DevOps in deploying applications to Kubernetes cluster, collaborated with API backend developer for efficient data exchange.

January 2016 - December 2019

Web App for License and User management

Led the development of a global product management and license system for sales representatives. Successfully deployed the application across diverse environments worldwide.

January 2018 - December 2019

Product Manager for wireless EMS System

Managed hardware, firmware, Android and iOS mobile apps, and Google Firebase-based cloud infrastructure. Successfully managed various stakeholders, including the Development Team. Ensured synchronization for the Tecnatives System development. Aligned diverse teams using Scrum initially, later adapted for specific team needs. Implemented extended Scrum for hardware team flexibility and time management. Designed software Scrum processes to meet team requirements without compromising overall quality. Prioritized comprehensive quality assurance, continuous integration, and continuous delivery for firmware development. Integrated Flutter SDK for mobile development, connecting backend and web application components under a single team. Successfully managed a 15-member team, adapting and extending Scrum for various needs.

January 2018 - December 2019

Flutter App for iOS and Android

Spearheaded Flutter framework adoption for mobile development. Customized UI to fulfill special requests, ensuring user satisfaction. Managed store pages and app store listings, optimizing customer engagement.

January 2015 - December 2019

Firebase Cloud for product license and user management

Successfully migrated license management code to Firebase, ensuring seamless integration and improved global backend operations. Introduced cloud functions for enhanced security, maintainability, and scalability. Designed an optimized database schema, optimizing performance, scalability, and data integrity.

October 2014 - December 2019

Embedded Firmware for EMS Devices

Developed a revised codebase crucial for the successful expansion to a broader range of embedded hardware and chips.

January 2015 - December 2018

Microservice cloud to handle world wide product traffic

Spearheaded the introduction of microservices architecture and advocated for a strategic approach to handle concurrent users and high-volume data transfer. Utilized Go, Docker and Kubernetes for efficient deployment and orchestration. Selected MongoDB as the database for scalability and data management.

November 2018 - November 2018

Unreal Engine VR App to Showcase EMS Suit

Developed a virtual reality demo using Unreal Engine 4 and C/C++ to showcase the capabilities of an electrical muscle stimulation (EMS) suit. The demo was designed to be used with an iOS device and integrated Bluetooth technology to communicate with the EMS suit.

November 2014 - December 2016

Native iOS App for EMS Training

Led the development of the iOS app, implementing Bluetooth communication and custom UI elements.

August 2013 - October 2014

Advanced Driver Assistant System Recording and Replay

Developed high-performance data acquisition and replay system for ADAS software, addressing memory leak issues and ensuring system stability during prolonged operations.