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Anna Shaleva

PROFILE

Anna Shaleva

Anna Shaleva contributed to the neo-project/neo and nspcc-dev/neofs-node repositories, focusing on core blockchain features, protocol reliability, and smart contract infrastructure. She engineered native contract enhancements, policy-driven governance, and hardfork-aware upgrades, using C#, Go, and Makefile to unify contract behaviors and streamline upgrade paths. Her work included refactoring hardfork logic, improving transaction processing, and modernizing event parsing, which reduced technical debt and improved maintainability. Anna also strengthened test coverage and error handling, ensuring robust cross-VM compatibility and safer production deployments. Her technical depth is evident in her approach to consensus algorithms, configuration management, and distributed systems reliability.

Overall Statistics

Feature vs Bugs

64%Features

Repository Contributions

38Total
Bugs
8
Commits
38
Features
14
Lines of code
4,572
Activity Months10

Work History

April 2026

2 Commits

Apr 1, 2026

April 2026 monthly summary for neo-project/neo. Focused on hardfork safety and correctness for the Neo VM and on precise activation gating for native methods/events. Implemented safer SHL/SHR handling in SmartContract and moved the fix to the Gorgon hardfork, reducing the risk of state divergence during fork transitions. Reworked activation logic so native methods/events activate only when ActiveIn is active and DeprecatedIn is not active. Added unit tests to validate hardfork-related safety and activation behavior, improving test coverage and release confidence. These changes collectively reduce upgrade risk, improve security, and strengthen core reliability for production deployments.

March 2026

5 Commits • 2 Features

Mar 1, 2026

Concise monthly summary for 2026-03 focusing on key features delivered, major bugs fixed, overall impact, and technologies demonstrated across neo-project/neo and nspcc-dev/neofs-node. Emphasizes business value, reliability improvements, and execution efficiency.

February 2026

11 Commits • 3 Features

Feb 1, 2026

February 2026 monthly summary for nspcc-dev/neofs-node: Focused on reliability and developer velocity through notary event parsing improvements, AppCall parsing modernization using NeoGo scparser, and broad codebase maintenance. Demonstrated Go expertise, improved error handling, and streamlined tooling to reduce bugs and accelerate future changes. Key outcomes include cleaner parsing workflows, clearer errors, and upgraded dependencies and build tooling.

January 2026

3 Commits • 1 Features

Jan 1, 2026

January 2026 monthly summary for the neo-project/neo repository. Delivered policy-driven contract enhancements and a critical build fix, improving contract reliability, fund recovery capabilities, and deployment stability.

December 2025

2 Commits • 1 Features

Dec 1, 2025

December 2025 monthly summary for neo-project/neo focused on governance upgrade readiness and NEP-30 standardization across native contracts. Delivered hardfork-aware governance enhancements by updating PolicyContract callflags to align with NEO.VoteInternal changes and Faun hardfork behavior switch. Introduced NEP-30 support across native Treasury, Notary, and Oracle contracts with configurable active hardforks to enable contract updates without disrupting existing functionality, improving upgradeability and ecosystem robustness.

May 2025

1 Commits • 1 Features

May 1, 2025

Summary for 2025-05: Delivered a strategic code refactor across neo's native contracts to unify hardfork enablement checks, reducing fork risk and improving maintainability. The change centralizes hardfork logic via ApplicationEngine.IsHardforkEnabled, removing redundant block index retrieval and ensuring backward-compatible behavior. While this month focused on consolidation and risk reduction, it lays the foundation for simpler future enhancements and consistent behavior across native contracts.

April 2025

8 Commits • 3 Features

Apr 1, 2025

Month: 2025-04 — The Neo project delivered core policy and consensus improvements, reinforcing reliability, security, and business value. Initiatives focused on migrating critical timing and policy settings to the native Policy contract, enabling precise governance of block timing, fee attributes, and hardfork alignment; introducing native Notary capabilities for Notary-Assisted transactions; refining consensus timing for accurate block interval validation; and updating testnet configuration to ensure current NeoFS settings in the CLI.

March 2025

3 Commits • 2 Features

Mar 1, 2025

March 2025 monthly summary for neo-project/neo focusing on value delivered, reliability, and developer experience. Highlights include the introduction of Notary Assisted Transaction Attribute with verification logic and integration into network fee calculation, along with a stub for the notary contract hash to enable future notary contract deployments. A SmartContract Notification Rate Limiting mechanism was added to cap notifications per application execution (MaxNotificationCount) and is enforced after the HF_Echidna hardfork to protect performance under load. A CryptoLib Ed25519 naming consistency refactor unified argument naming with verifyWithECDsa, improving manifest readability and cross-module consistency. These changes establish groundwork for compliant notary workflows, stabilize performance, and enhance developer experience.

December 2024

2 Commits • 1 Features

Dec 1, 2024

Month: 2024-12 – Focused on stabilizing core networking paths and reducing technical debt across two critical repositories. Key outcomes include SDK initialization cleanup in neofs-node and P2P capability enhancements in neo, delivering tangible business value through improved reliability, interoperability, and future-proofing for unknown capabilities.

October 2024

1 Commits

Oct 1, 2024

In Oct 2024, focused on strengthening the reliability of the MODPOW opcode in neo-project/neo by extending edge-case test coverage to align with NeoGo VM behavior, reducing risk of regressions and improving cross-VM compatibility. The work reinforces core arithmetic correctness in the VM and supports future feature work with robust tests.

Activity

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Quality Metrics

Correctness95.2%
Maintainability91.6%
Architecture92.4%
Performance88.4%
AI Usage22.0%

Skills & Technologies

Programming Languages

C#GoMakefile

Technical Skills

API integrationBackend DevelopmentBlockchainBlockchain DevelopmentBlockchain TechnologyC#C# programmingCLI DevelopmentCapability HandlingCode RefactoringConfiguration ManagementConsensus AlgorithmsCore DevelopmentCryptographyDistributed Systems

Repositories Contributed To

2 repos

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

neo-project/neo

Oct 2024 Apr 2026
9 Months active

Languages Used

GoC#

Technical Skills

BlockchainGoSmart ContractsTestingCapability HandlingP2P Networking

nspcc-dev/neofs-node

Dec 2024 Mar 2026
3 Months active

Languages Used

GoMakefile

Technical Skills

Code RefactoringGo DevelopmentSDK IntegrationGoGo programmingMakefile management