Andreas Fackler
Software Engineer at Linera
Stockholm, Sweden
Summary
🤩
Rockstar🎓
Top SchoolAndreas Fackler is a software engineer and PhD-trained mathematician with 11+ years building robust back-end systems, currently contributing to Linera from Stockholm. After a stint at Google on web and Android platforms he transitioned to Rust-focused work across blockchain and decentralized networking projects, including substantial contributions to Casper (the reference CASPER protocol node) and MaidSafe's crust library. He brings deep expertise in Rust, distributed systems, consensus protocols and validator management, having implemented consensus-related features in parity-ethereum and worked on core chain-management logic for Linera. Comfortable as both consultant and long-term engineer, he has a track record of clean refactors, protocol integrations and improving test and documentation quality. He also speaks several languages and lived/learned Greek and Czech while working remotely across Europe, reflecting adaptability beyond pure engineering.
11 years of coding experience
14 years of employment as a software developer
Ludwig Maximilian University of Munich
English, German, French, Swedish
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (27)
consensus10
back-end-development10
peer-to-peer10
testing10
distributed-systems10
c1110
networking10
standard-library10
c1710
ethereum10
blockchain10
rust10
common-library10
c-library10
documentation10
Programming languages (12)
Github contributions (5)
linera-io/linera-protocol
Apr 2023 - Apr 2025
Main repository for the Linera protocol
Role in this project:
Back-end Developer
Back-end DeveloperContributions:3 releases, 2339 reviews, 864 PRs in 1 year 11 months
Contributions summary:Andreas's commits focus on implementing back-end functionality for the Linera protocol, including core logic and message handling for chain management and application interactions. They made modifications to the chain listener to improve its handling of notifications, and improved error handling. The user also made changes to system API calls such as open_chain and close_chain, including adding support for multi-owner chains. Furthermore, the user made contributions to various tests.
blockchainrustwasm
casper-network/casper-node
Jun 2020 - Dec 2022
Reference client for CASPER protocol
Role in this project:Back-end Developer
Back-end DeveloperContributions:1712 reviews, 1156 commits, 272 PRs in 2 years 6 months
Contributions summary:Andreas contributed to the development of the CASPER protocol node, focusing on implementing and refactoring back-end components. Their work involved fixing formatting issues, merging code from upstream repositories, and integrating updates related to validator management and execution engine interactions. The user demonstrated skills in Rust, particularly within the context of blockchain technology and distributed systems.
ethereumcasperblockchaininternet-computercasper-network
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