Alexander Mamonchik
Software Engineer at WETTSTAR - AUS LIEBE ZUM RENNSPORT.
Mengen, Baden-Württemberg, Germany
Summary
🤩
Rockstar🎓
Top SchoolAlexander Mamonchik is a pragmatic software engineer with 11 years of international remote experience, specializing in payments integrations (Stripe, PayPal) and backend systems for product-focused teams. He has led technical efforts from prototype to revenue — including a backend that helped an R&D project generate over €1M — and built automation that shrank EU legal certification effort threefold. Comfortable with partially specified problems, he balances deep research and fast MVP delivery, practices TDD, and mentors growing teams. An active contributor to stripe-ruby-mock, he brings practical test-focused expertise that improves payment API reliability. Based in Baden-Württemberg, he is seeking Backend or Fullstack roles across Germany/EU where he can pair business understanding with hands-on delivery.
11 years of coding experience
15 years of employment as a software developer
technician-programmer, software computers and automated systems, technician-programmer, software computers and automated systems at Omsk State Industrial and Economic CollegeBachelor of Computer Science, Computer Systems Networking and Telecommunications, Bachelor of Computer Science, Computer Systems Networking and Telecommunications at Omsk State University (OSU)
English, Russian, German
Stackoverflow
11reputation
40reached
1answer
1question
Github Skills (8)
stripe-api10
rspec10
api-testing10
test-automation10
ruby10
ruby-on-rails6
filtering6
web-deployment6
Programming languages (4)
Github contributions (5)
stripe-ruby-mock/stripe-ruby-mock
Apr 2015 - Dec 2020
A mocking library for testing stripe ruby
Role in this project:
Back-end Developer
Back-end DeveloperContributions:3 releases, 6 reviews, 324 commits in 5 years 9 months
Contributions summary:Alexander primarily contributed to the testing and validation aspects of the Stripe mocking library. Their work involved fixing tests, particularly around the validation of plans and coupons, ensuring the library accurately simulates Stripe's behavior. Code changes focused on the `lib/stripe_mock` and `spec` directories, demonstrating a focus on implementing test scenarios and verifying the correctness of API responses. The user also contributed to the implementation of coupon support for subscriptions.
stripetestingrubymockingmocking-library
alexmamonchik/docusign-ruby-client
Sep 2017 - Mar 2019
The Official DocuSign C# Ruby Library used to interact with the eSign REST API. Send, sign, and approve documents using this client.
Contributions:1 PR, 5 pushes, 3 branches in 1 year 5 months
apidotnetesignsignapprove
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