hashgraph/hedera-services
Jul 2025 – Oct 2025
4 Months active
Languages Used
JavaSolidityKotlin
Technical Skills
Code Ownership ManagementDevOpsAPI IntegrationFeature ImplementationJavaSmart Contracts
Glib Kozyryatskyy
PROFILE
Glib Kozyryatskyy
Over four months, Glib K. contributed to the hashgraph/hedera-services repository by delivering four backend features focused on smart contract governance, scheduling, and validation. He enhanced code maintainability by reorganizing code ownership and streamlining review processes. Using Java and Solidity, Glib implemented HIP-1215 schedule operations, enabling richer on-chain scheduling and improving integration with Hedera services. He strengthened test infrastructure with local-node capacity checks and end-to-end Java integration, supporting robust validation. Additionally, he centralized zero-address handling through a reusable utility and enforced pre-call validation to align with EVM standards, reducing security risks and simplifying future maintenance for contract deployments.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
5Total
Bugs
0
Commits
5
Features
4
Lines of code
4,365
Activity Months4
Your Network
32 peopleShared Repositories
1
Work History
October 2025
1 Commits • 1 Features
Oct 1, 2025Month: 2025-10 — Delivered Zero Address Handling and Validation in Contract Calls for hashgraph/hedera-services. Implemented a central ConstantUtils utility to manage zero-address constants and added pre-call validation to reject zero-address contract calls, aligning with EVM behavior for deployments and improving maintainability. This work reduces security risk and operational confusion by standardizing zero-address handling and simplifying future changes.
1 Commits • 1 Features
Oct 1, 2025Month: 2025-10 — Delivered Zero Address Handling and Validation in Contract Calls for hashgraph/hedera-services. Implemented a central ConstantUtils utility to manage zero-address constants and added pre-call validation to reject zero-address contract calls, aligning with EVM behavior for deployments and improving maintainability. This work reduces security risk and operational confusion by standardizing zero-address handling and simplifying future changes.
October 2025
September 2025
2 Commits • 1 Features
Sep 1, 20252025-09 Monthly Summary: Focused on delivering feature improvements for Hedera Smart Contract Service, enhancing testability with local-node capacity checks, and completing Java integration with services for end-to-end validation. Resulted in clearer transaction processing, robust schedule handling, and improved service integration, driving reliability and faster validation across the local/test environments.
September 2025
2 Commits • 1 Features
Sep 1, 20252025-09 Monthly Summary: Focused on delivering feature improvements for Hedera Smart Contract Service, enhancing testability with local-node capacity checks, and completing Java integration with services for end-to-end validation. Resulted in clearer transaction processing, robust schedule handling, and improved service integration, driving reliability and faster validation across the local/test environments.
August 2025
1 Commits • 1 Features
Aug 1, 2025Monthly summary for 2025-08 highlighting feature delivery in Hedera Smart Contract Service focusing on HIP-1215 schedule operations support. Implemented new function selectors and translators for schedule-related operations, introduced new dispatch types, integrated translators for schedule call, delete schedule, and has schedule capacity, and updated configuration to enable the new features. This work establishes the groundwork for richer on-chain scheduling capabilities and improved developer experience across Hedera services.
1 Commits • 1 Features
Aug 1, 2025Monthly summary for 2025-08 highlighting feature delivery in Hedera Smart Contract Service focusing on HIP-1215 schedule operations support. Implemented new function selectors and translators for schedule-related operations, introduced new dispatch types, integrated translators for schedule call, delete schedule, and has schedule capacity, and updated configuration to enable the new features. This work establishes the groundwork for richer on-chain scheduling capabilities and improved developer experience across Hedera services.
August 2025
July 2025
1 Commits • 1 Features
Jul 1, 2025July 2025 performance summary for hashgraph/hedera-services: Strengthened governance and maintainability by updating CODEOWNERS to reflect smart contract contributions, reorganizing ownership for HAPI protobufs, and adding ownership for a new contract test client directory. These changes streamline code reviews, clarify responsibilities, and improve long-term maintainability for smart contract code.
July 2025
1 Commits • 1 Features
Jul 1, 2025July 2025 performance summary for hashgraph/hedera-services: Strengthened governance and maintainability by updating CODEOWNERS to reflect smart contract contributions, reorganizing ownership for HAPI protobufs, and adding ownership for a new contract test client directory. These changes streamline code reviews, clarify responsibilities, and improve long-term maintainability for smart contract code.
Activity
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Quality Metrics
Correctness90.0%
Maintainability92.0%
Architecture90.0%
Performance80.0%
AI Usage28.0%
Skills & Technologies
Programming Languages
JavaKotlinSolidity
Technical Skills
API DevelopmentAPI IntegrationBackend DevelopmentCode Ownership ManagementDevOpsFeature ImplementationJavaJava DevelopmentSmart ContractsSoliditySystem DesignSystem IntegrationTesting
Repositories Contributed To
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