Gustav Stieger - Software Engineer at Toptal Developers

Gustav Stieger

Software Engineer at Toptal Developers

Morwell, Victoria, Australia

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Summary

👤

Senior

🎓

Top School

Gustav Stieger is a seasoned software engineer with 9+ years of professional experience and a long history of shipping robust systems across .NET, React, TypeScript, SQL/SSIS and ETL pipelines. He has deep blockchain expertise from leading core development at Stratis—splitting a monolithic full node, architecting cold staking, improving cross-chain transfer tracking and converting wallets to SQLite for major performance gains—and has contributed configuration and indexing fixes to the StratisBitcoinFullNode C# repo. Comfortable across backend, integrations and machine learning, he pairs production-grade engineering with AI toolkits (Python, TensorFlow, PyTorch) and a Kaggle-ranked ML entry that underscores rapid learning. A Toptal-selected freelancer based in Morwell, Australia, he combines pragmatic problem-solving (including earning roles via public developer competitions) with a passion for data ownership and privacy.

8 years of coding experience

30 years of employment as a software developer

Bachelor of Science - BS, Bachelor of Science - BS at University of the Free State

B.Sc. Hons, Computer Science, Mathematics, B.Sc. Hons, Computer Science, Mathematics at University of the Free State/Universiteit van die Vrystaat

Neural Networks for Machine Learning (Coursera), Machine Learning, 90%, Neural Networks for Machine Learning (Coursera), Machine Learning, 90% at University of Toronto

Heterogeneous Parallel Programming (Coursera), Data Science, 100%, Heterogeneous Parallel Programming (Coursera), Data Science, 100% at University of Illinois Urbana-Champaign

English

Github Skills (13)

configuration-management10

bitcoin10

bitcoins10

csharp10

n10

blockchain10

dotnet-core10

freenode10

wallet9

dotnet9

net9

asp-net9

database-design8

Programming languages (3)

C#CSSBikeshed

Github contributions (5)

stratisproject/StratisBitcoinFullNode

Jun 2017 - Oct 2020

Bitcoin full node in C#

Role in this project:

Back-end Developer

Contributions:1 review, 455 commits, 325 PRs in 3 years 4 months

Contributions summary:Gustav primarily contributed to the configuration aspects of the Bitcoin full node in C#. Their work included fixing file path handling for different operating systems, refactoring configuration file parsing to improve error reporting, and modifying the wallet configuration to prevent issues on startup. They also made code-level changes to database indexing which is a core component of the full node. Their efforts involved refactoring code and adding features like improved exception handling to provide more informative diagnostics and improved efficiency.

full-nodeblockchaincsharpcryptocurrencybitcoin

quantumagi/StratisFullNode-1

Sep 2020 - Sep 2023

Contributions:1568 pushes, 424 branches in 3 years

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