Leonid Mamchenkov
Chief Executive Officer at AlleoTech Ltd
Limassol, Cyprus
Summary
👤
Senior🎓
Top SchoolLeonid Mamchenkov is a technology executive and founder with over 20 years of hands-on engineering roots who now leads companies as CEO, translating deep backend, infrastructure and DevOps experience into strategic business outcomes. He co-founded and scaled AlleoTech and AlleoChain, delivering large-scale cloud migrations, digital transformations and blockchain storage products while recruiting and shaping high-performing engineering teams. Comfortable in both the boardroom and the code repo, he has a track record of modernizing SaaS architectures, improving development velocity, and overseeing multi-million euro portfolios for enterprise clients. An active contributor to open-source (notably enhancing Phinx migrations with MySQL BLOB and Postgres json/jsonb support), he brings pragmatic calm, operational rigor and a talent for turning technical capabilities into measurable business value. Based in Limassol, Cyprus, he is open to executive roles (CTO/CIO/COO/CEO) where steady technical leadership and operational discipline are needed.
15 years of coding experience
18 years of employment as a software developer
B.Sc., Computer Science, B.Sc., Computer Science at Intercollege
English, Russian
Stackoverflow
366reputation
71kreached
12answers
0questions
Github Skills (14)
database-migrations10
php10
database-migration10
mysql10
database-design9
documentation8
postgresql7
merge6
absolute6
cakephp6
javascript6
model-view-controller6
csv6
image-processing6
Programming languages (9)
Github contributions (5)
cakephp/phinx
May 2015 - Jul 2015
PHP Database Migrations for Everyone
Role in this project:
Backend Developer / Database Engineer
Backend Developer / Database EngineerContributions:6 commits, 3 PRs, 13 comments in 2 months
Contributions summary:Leonid primarily contributed to the database migration aspects of the Phinx project. They added support for various BLOB sizes in MySQL, including the necessary code adjustments in both the adapter and the unit tests. Furthermore, the user introduced the "uuid" column type and also updated documentation to include "json" and "jsonb" column types in the Postgres adapter. They also performed documentation updates by sorting column types alphabetically and updating the limit option information.
mysqlphp-database-migrationsphpphp71mysqli
QoboLtd/puppet-boxes
Jan 2015 - Dec 2015
Contributions:106 commits, 59 PRs, 37 pushes in 11 months
puppetlinuxvirtual-serverdesktoppuppet-masterless
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