Stefan Leonhartsberger
Head Of R&D at Frequentis
Vienna, Austria
Summary
👤
Senior🎓
Top SchoolStefan Leonhartsberger is a seasoned software and systems leader with 13 years of experience, currently heading R&D at Frequentis in Vienna. He began his career building safety-critical software at Siemens Rail and later authored the initial codebase for CATS, Frequentis’ in-house testing framework for regulated markets, before moving into system architecture for the LifeX ecosystem. Stefan blends big-picture product and customer understanding with deep technical fluency across the stack—from semiconductor-level considerations to user interfaces—prioritizing efficiency, safety, and design-to-cost tradeoffs. A perpetual technophile, he actively explores and integrates emerging technologies within the constraints of safety-critical systems, and holds an MSc in Information Security that informs his pragmatic approach to robust system design.
13 years of coding experience
MSc, Information Security, MSc, Information Security at Fachhochschule Technikum Wien
Stackoverflow
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Github Skills (143)
messaging10
cloud-computing10
message-queue10
distributed-computing10
stream-processing10
cloud-native10
middleware10
computation10
golang10
high-performance10
messaging-system10
in-memory10
hazelcast10
distributed-systems10
java10
Programming languages (7)
Github contributions (5)
stefanLeo/wireshark_websocket_deflate
Aug 2017 - Jul 2018
Contributions:11 commits, 10 pushes, 1 branch in 10 months
stefanLeo/FHTW_App
Apr 2013 - Jun 2013
Contributions:8 commits in 2 months
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