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Anton Cherkas

PROFILE

Anton Cherkas

Worked on the OverMoney repository to deliver a robust payment and subscription management system over four months, focusing on backend development, data validation, and observability. Implemented end-to-end YooKassa payment flows using Java and Kafka, designed new database models for subscriptions, and integrated recurring payments across services. Enhanced reliability with expanded test coverage, Checkstyle enforcement, and configuration management via Helm and Vault. Improved user experience through asynchronous updates, frontend notifications, and Telegram bot integration for alerts. Addressed data integrity by validating category names and supporting Cyrillic parsing. Strengthened monitoring with Grafana dashboards and alerting, ensuring stable, secure, and maintainable operations.

Overall Statistics

Feature vs Bugs

80%Features

Repository Contributions

31Total
Bugs
2
Commits
31
Features
8
Lines of code
3,877
Activity Months4

Work History

July 2025

5 Commits • 1 Features

Jul 1, 2025

July 2025 performance summary for nekromant322/OverMoney focused on delivering a robust Subscriptions and Recurring Payments System and stabilizing the payment flow. Key system improvements include a new database model for subscriptions, cross-service recurring payments integration, YooKassa webhook handling with a dedicated DTO, and user-facing status endpoints. The project also introduced Telegram bot integration for notifications and a Kafka-based event pipeline to decouple payment events from downstream services. Testing coverage and deployment reliability were enhanced through test improvements and migration fixes.

June 2025

18 Commits • 4 Features

Jun 1, 2025

June 2025 monthly summary for nekromant322/OverMoney: Delivered end-to-end YooKassa payment and subscription processing with a Kafka-driven request/response flow, including DTOs and enums for currency/status, plus subscription topics. Added tests and secured secrets in Vault. Implemented User Logout and Authentication Status endpoints to improve session management and security. Strengthened QA and code hygiene with additional tests and Checkstyle improvements. Enhanced observability and infrastructure with Grafana alerts and Helm chart adjustments. Resolved Kafka listener issues and stabilized payment status checks and related configuration tweaks.

May 2025

5 Commits • 2 Features

May 1, 2025

Month: 2025-05 — OverMoney (nekromant322/OverMoney) focused on data integrity, UX reliability, and observability. Delivered key features, fixed critical validation issues, and established proactive monitoring to support business operations and faster incident response.

April 2025

3 Commits • 1 Features

Apr 1, 2025

April 2025 — nekromant322/OverMoney: Delivered key features and fixes with measurable business value. Transaction parsing now supports Cyrillic characters 'ё' and 'й' across multiple handlers, with expanded tests validating the new cases. Orchestrator service admin configuration updated to include new administrator 'SadWalther', ensuring governance and access control. These changes improve data accuracy, reliability of parsing, test coverage, and admin governance with minimal risk. Technologies demonstrated include regex enhancements, cross-handler integration, and configuration management.

Activity

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Quality Metrics

Correctness86.2%
Maintainability86.2%
Architecture83.0%
Performance78.2%
AI Usage21.4%

Skills & Technologies

Programming Languages

JavaJavaScriptKotlinYAMLyaml

Technical Skills

API DevelopmentAPI IntegrationAlertingAuthenticationBackend DevelopmentCode FormattingCode StyleConfigurationConfiguration ManagementDTO DesignDTOsData ValidationDatabase DesignDatabase ManagementDevOps

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

nekromant322/OverMoney

Apr 2025 Jul 2025
4 Months active

Languages Used

JavaYAMLJavaScriptyamlKotlin

Technical Skills

Backend DevelopmentConfiguration ManagementRegular ExpressionsTest-Driven DevelopmentUnit TestingAPI Development