Steffen Grohsschmiedt is a Staff Data Engineer based in Norrköping, Sweden with 11 years of experience building and operating large-scale data and ML platforms. He has led cloud engineering for Hopsworks—shaping its managed Feature Store across major clouds—and more recently joined Acast to drive data engineering at scale. His background spans core data infrastructure work at Spotify (roylaties/reporting and Hadoop-to-cloud migrations) and research-grade systems engineering from KTH and Hasso Plattner Institute. As an active contributor to the open-source Hopsworks project, he has implemented Jupyter integrations, SageMaker support, API hardening, and JDBC feature imports, showing a knack for bridging platform internals with external services. Colleagues describe him as an architecture-minded implementer who moves projects from design to production while keeping operational resilience top of mind.
11 years of coding experience
6 years of employment as a software developer
Master of Science (M.Sc.) Software Engineering of Distributed Systems, Master of Science (M.Sc.) Software Engineering of Distributed Systems at KTH Royal Institute of Technology
Bachelor of Science (B.Sc.) IT Systems Engineering, Bachelor of Science (B.Sc.) IT Systems Engineering at Hasso Plattner Institute
Hopsworks - Data-Intensive AI platform with a Feature Store
Role in this project:
Back-end Developer
Contributions:8 commits, 14 PRs, 7 pushes in 3 months
Contributions summary:Steffen primarily refactored and enhanced the Jupyter code within the Hopsworks platform. They modified Java code related to Jupyter configuration files, addressing non-localhost implementations, and added support for Amazon SageMaker, demonstrating a focus on integrating with external services. Furthermore, they made changes to feature store and project APIs, including the addition of an API key requirement for accessing feature store functionalities, and implemented JDBC connectivity for feature import. The user also made changes for removing the configuration of some dependencies.
Contributions:64 pushes, 8 branches in 5 years 8 months
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