Ivan Appel
Rust DeFi Software Engineer at C11 Labs
Amsterdam, North Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolIvan Appel is a Rust DeFi software engineer based in Amsterdam with 15 years of experience building low-latency, production-grade systems across trading, SRE, and backend domains. He has led architecture and engineering at BlockTech, shipping algorithmic options and futures trading platforms, and now focuses on Rust-native DeFi work at C11 Labs. Ivan blends deep systems and SRE experience from Optiver with hands-on development in Python, Node.js, TimescaleDB and Docker, enabling reliable, observable infrastructure for high-throughput applications. Known for getting things done with humility, he routinely moves between coding, mentoring, and architecture while keeping operational resilience front and center. His background in physical electronics and early work on telecom and finance systems give him a practical edge in designing robust, low-level solutions. Colleagues value him for pragmatic leadership: tackling complex problems without ceremony and ensuring mission-critical systems keep running.
15 years of coding experience
17 years of employment as a software developer
Lyceum #31engineer Physical Electronics, engineer Physical Electronics at South Ural State University (SUSU)
English, Russian, Dutch
Stackoverflow
3,209reputation
543kreached
33answers
3questions
python
top-5%
Github Skills (7)
python9
language-features6
socket6
programming-language6
javadoc6
google-app-engine6
java6
Github contributions (5)
geekyfox/multiverse
Mar 2011 - Jul 2013
Contributions:64 commits in 2 years 4 months
geekyfox/antiblog.hs
Oct 2014 - Jun 2016
Contributions:1 release, 51 commits, 57 pushes in 1 year 7 months
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