Steffen Härtlein
Projektmanager at Börsenmedien AG
Bavaria, Germany
Summary
🤩
Rockstar🎓
Top SchoolSteffen Härtlein is a project manager with 11 years of tech experience, currently focused on AI and blockchain initiatives at Börsenmedien AG in Bavaria. He combines academic grounding from a M.S. in Computer Science (TU Berlin) with hands-on development experience dating back to internships and dual study programs, including Salesforce consulting and software engineering. Steffen has practical blockchain engineering chops—contributing backend work to the well-known ZoKrates zkSNARKs toolbox, notably implementing Solidity verifier export and R1CS import improvements. He spent five years managing cryptocurrency and ICO projects, blending product, regulatory and technical perspectives to drive delivery. Known for bridging deep technical detail and project leadership, he favors pragmatic refactors and reproducible tooling to reduce integration friction.
11 years of coding experience
Bachelor of Science (B.Sc.), Informatik, Bachelor of Science (B.Sc.), Informatik at Hochschule DarmstadtMaster of Science (M.S.), Computer Science, Master of Science (M.S.), Computer Science at Technische Universität Berlin
English, Spanish
Github Skills (8)
zksnark10
rust10
solidity10
ethereum10
parserator9
parser9
json7
regex6
Programming languages (4)
Github contributions (5)
Zokrates/ZoKrates
Oct 2017 - Mar 2018
A toolbox for zkSNARKs on Ethereum
Role in this project:
Back-end Developer
Back-end DeveloperContributions:16 commits, 6 pushes, 1 branch in 5 months
Contributions summary:Steffen primarily contributed to the back-end functionality of the zkSNARKs toolbox, specifically by implementing the "export-verifier" feature. They worked on generating Solidity verifier code, which involved parsing verification key files and adapting a template. Further contributions include refactoring R1CS import from JSON files, and implementing function parameters. The user also addressed build and merge issues related to the project's codebase, demonstrating a good understanding of the project's inner workings.
snarkethereumverifiable-computationtoolboxzero-knowledge
Steffen93/dist-mpc
Aug 2017 - Apr 2018
Contributions:94 commits, 1 push in 7 months
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