Jochen Groppe
Gesellschafter-Geschäftsführer at CONSULitAS GmbH
Ruhr Region Germany
Summary
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RockstarJochen Groppe is an experienced IT executive and entrepreneur with over 11 years in leadership roles, currently serving as Gesellschafter-Geschäftsführer of CONSULitAS GmbH, delivering IT management and consultancy across the Ruhr region. He has held CIO-level responsibility for Heidelberger Stadtwerke and brings a consulting background from Kienbaum, combining strategic oversight with practical operational authority. Technically hands-on, Jochen has contributed to the widely used Marlin 3D printer firmware, adding board definitions and configurations for the Vellemann K8200—an indication of embedded/IoT familiarity beyond typical executive duties. He pairs business-savvy decision-making with direct engineering experience, able to translate hardware-specific requirements into working firmware and tested deployments. Known for bridging management and technical teams, he focuses on pragmatic, auditable solutions that scale within municipal and commercial environments. Based in Germany’s Ruhr region, he blends regional market knowledge with a developer’s attention to detail.
11 years of coding experience
Github Skills (11)
firmware10
3d-printing10
configuration-management10
embedded10
avr10
configurations10
sys10
arduino10
configuration-file10
esp328
atmel7
Programming languages (11)
Github contributions (5)
MarlinFirmware/Marlin
Jan 2015 - Jun 2016
Marlin is an optimized firmware for RepRap 3D printers based on the Arduino platform. Many commercial 3D printers come with Marlin installed. Check with your vendor if you need source code for your specific machine.
Role in this project:
Embedded Systems Engineer / IoT Developer
Embedded Systems Engineer / IoT DeveloperContributions:34 commits, 28 PRs, 4 pushes in 1 year 5 months
Contributions summary:Jochen primarily contributed to the Marlin firmware by adding and modifying example configurations for the Vellemann K8200 3D printer. This involved creating a new board definition, updating pin assignments, and modifying configuration files (Configuration.h and Configuration_adv.h) to match the Vellemann K8200's hardware and features. They ensured proper functionality of the printer, including testing with the LCD display.
vendorreprapmarlinesp32commercial
CONSULitAS/Polestar_2_MQTT_Docker
Apr 2024 - Mar 2025
Docker Container with Gateway between Polestar API and MQTT
Contributions:6 reviews, 13 PRs, 53 pushes in 11 months
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