Aleksey Yeschenko
Software Engineer at Apple
London, England, United Kingdom
Summary
🤩
Rockstar🎓
Top School
Top expert inDistributed Data Systems and Analytics Technology
Aleksey Yeschenko is a software engineer with 17 years' experience in backend and distributed systems, currently at Apple and previously at DataStax where he worked on Cassandra-related technologies. An Apache Cassandra Committer and PMC member, he blends deep database and systems knowledge with pragmatic engineering practice. His open-source contributions span languages and ecosystems—from Erlang's gen_smtp to enhancements in the Io dynamic language, including networking, caching (Memcached), and JSON/list improvements. Based in London, he brings a mix of production-grade refactoring, protocol-level fixes, and language-level feature work that few backend engineers combine.
17 years of coding experience
8 years of employment as a software developer
Belarusian State University of Informatics and Radioelectronics
English, Russian
Github Skills (16)
plugin-development10
socket-io10
smtpd10
socket10
erlang10
addin10
smtp10
smtps10
addon10
memcached10
concurrency9
refactoring8
json8
refactor8
architectures7
Programming languages (6)
Github contributions (5)
gen-smtp/gen_smtp
Mar 2010 - Sep 2010
The extensible Erlang SMTP client and server library.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:11 commits in 6 months
Contributions summary:Aleksey primarily focused on the core functionality of the Erlang SMTP server library. Their contributions included removing unused code, ensuring proper module termination calls, and refactoring code for clarity and maintainability. Key changes involved adding and modifying callbacks within the server session, as well as introducing new start functions for the server. The user also addressed code style issues by bringing back tabs and corrected typos.
erlangsmtp-client
IoLanguage/io
Jan 2009 - Mar 2009
Io programming language. Inspired by Self, Smalltalk and LISP.
Role in this project:Back-end Developer
Back-end DeveloperContributions:9 commits in 1 month
Contributions summary:Aleksey primarily contributed to the Io programming language project, focusing on enhancements and new features related to core functionalities. They implemented a new `readBytes` method for sockets and added a new Beanstalk addon. Furthermore, the user introduced a Memcached addon, integrating it with Io to provide caching capabilities. The user also improved the List methods and JSON conversions.
lispprogramming-languagesmalltalk
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