Alex Demchenko
Founder at Lazy Games
Valencia, Valencian Community, Spain
Summary
🤩
Rockstar🎓
Top SchoolAlex Demchenko is a founder and seasoned technology leader with 14 years of experience building scalable Web3, GameFi, and eCommerce platforms from idea to production. He has led engineering and product at multiple startups (Clarnium, Lazy Ants, Wobbly) and shipped high-throughput Web3 tooling—ClarFun token launcher, ClarPay payments processing, and AI agent integrations—driving millions in processed value and significant user growth. A hands-on backend developer and open-source contributor, Alex has improved popular PHP payment libraries (Omnipay, Stripe drivers) adding card/customer update workflows and tests, demonstrating a focus on reliable payments and developer experience. He blends deep systems and blockchain knowledge (Solidity, TypeScript, AWS, microservices) with founder-level commercial instincts to align engineering with revenue outcomes. Based in Valencia, he also runs an open-source time-tracking project and has a background in aerospace engineering, an uncommon foundation that strengthens his systems-thinking approach.
14 years of coding experience
22 years of employment as a software developer
Full Stack Web Development, Computer Software Engineering, Full Stack Web Development, Computer Software Engineering at Free Code CampMaster of Technology - MTech, Master of Technology - MTech at National Aerospace University -'Kharkiv Aviation Institute'
English, Ukrainian, Spanish
Stackoverflow
3,726reputation
1.6mreached
8answers
0questions
database
top-1%
postgresql
top-1%
command-line
top-1%
Github Skills (25)
apim10
postgresql10
apidoc10
symfony-bundle10
ecommerce10
testing10
payment-integration10
payment-gateway10
phpunit10
omnipay10
php10
payment-processing10
api10
symfony10
command-line10
Programming languages (11)
Github contributions (5)
thephpleague/omnipay-stripe
Apr 2013 - Apr 2013
Stripe driver for the Omnipay PHP payment processing library
Role in this project:
Back-end Developer
Back-end DeveloperContributions:9 commits in 5 days
Contributions summary:Alex contributed significantly to the `omnipay-stripe` library, focusing on enhancing credit card functionalities. They implemented features for creating, updating, and deleting credit card information, as well as tests for these functionalities. The user refactored gateway requests, renamed methods, and updated test response messages, showing a focus on improving the payment processing logic and the test suite.
driveromnipayphpstripe
thephpleague/omnipay
Apr 2013 - Apr 2013
A framework agnostic, multi-gateway payment processing library for PHP 5.6+
Role in this project:Back-end Developer
Back-end DeveloperContributions:11 commits in 5 days
Contributions summary:Alex focused on adding and modifying payment processing functionality within the Omnipay library, particularly for Stripe integration. Their contributions include creating and updating requests related to customer card management (create, update, delete), adding support for the `update` request type, and implementing associated tests. The user also updated example files and core gateway functionality to incorporate the new requests.
php
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.