hiero-ledger/hiero-consensus-node
Nov 2024 – Oct 2025
12 Months active
Languages Used
JavaJavaScriptKotlinProtoGroovyGradleProtobuf
Technical Skills
Backend DevelopmentHedera ServicesIntegration TestingJavaTestingUnit Testing
Ivan Bankov
PROFILE
Ivan Bankov
Ivan Bankov engineered core consensus and scheduling features for the hiero-ledger/hiero-consensus-node repository, focusing on robust batch transaction processing, atomicity, and test infrastructure. He implemented granular shard and realm support, enhanced throttling and error handling, and introduced max custom fee controls for scheduled transactions. Using Java and Kotlin, Ivan refactored transaction workflows to improve reliability, integrated gRPC-Web proxy support, and strengthened test automation with repeatable execution frameworks. His work addressed edge cases in Ethereum batch nonce handling and ensured data attribution accuracy, demonstrating depth in backend development, API design, and distributed systems while reducing operational risk and improving release readiness.
Overall Statistics
Feature vs Bugs
55%Features
Repository Contributions
48Total
Bugs
14
Commits
48
Features
17
Lines of code
20,525
Activity Months12
Your Network
70 people
Work History
October 2025
2 Commits
Oct 1, 2025October 2025 focused on strengthening data attribution accuracy and security controls in the hiero-consensus-node. Delivered critical bug fixes that improve data integrity and governance, reducing misattribution risks and tightening authorization on account ID updates. Resulting changes enhance trust in the ledger and downstream analytics with improved test coverage and clearer ownership of fixes.
2 Commits
Oct 1, 2025October 2025 focused on strengthening data attribution accuracy and security controls in the hiero-consensus-node. Delivered critical bug fixes that improve data integrity and governance, reducing misattribution risks and tightening authorization on account ID updates. Resulting changes enhance trust in the ledger and downstream analytics with improved test coverage and clearer ownership of fixes.
October 2025
September 2025
3 Commits • 2 Features
Sep 1, 2025September 2025 focused on delivering robust Yahcli tooling enhancements and strengthening regression testing for the hiero-consensus-node project. The work improved node management and staking workflows in Yahcli, expanded test coverage for core commands, and enhanced test infrastructure for upgrade flows. These efforts reduce operational risk, accelerate validation in CI, and establish a stronger foundation for future releases while showcasing practical business value through clearer, verifiable outcomes.
September 2025
3 Commits • 2 Features
Sep 1, 2025September 2025 focused on delivering robust Yahcli tooling enhancements and strengthening regression testing for the hiero-consensus-node project. The work improved node management and staking workflows in Yahcli, expanded test coverage for core commands, and enhanced test infrastructure for upgrade flows. These efforts reduce operational risk, accelerate validation in CI, and establish a stronger foundation for future releases while showcasing practical business value through clearer, verifiable outcomes.
August 2025
2 Commits • 1 Features
Aug 1, 2025August 2025 monthly performance summary for hiero-ledger/hiero-consensus-node focusing on reliability and correctness of batched transaction processing. Delivered targeted improvements to batch workflows, emphasizing atomicity and correct nonce handling in multi-transaction scenarios. The work reduces failure modes in high-throughput batch processing and strengthens overall ledger consensus reliability.
2 Commits • 1 Features
Aug 1, 2025August 2025 monthly performance summary for hiero-ledger/hiero-consensus-node focusing on reliability and correctness of batched transaction processing. Delivered targeted improvements to batch workflows, emphasizing atomicity and correct nonce handling in multi-transaction scenarios. The work reduces failure modes in high-throughput batch processing and strengthens overall ledger consensus reliability.
August 2025
July 2025
4 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary focused on reliability and value delivery for the hiero-consensus-node. Delivered business-critical improvements around batched Ethereum operations, scheduled transaction fee controls, and test-harness robustness. Resulting in stronger correctness, clearer error propagation, and reduced operational risk in production and testing environments.
July 2025
4 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary focused on reliability and value delivery for the hiero-consensus-node. Delivered business-critical improvements around batched Ethereum operations, scheduled transaction fee controls, and test-harness robustness. Resulting in stronger correctness, clearer error propagation, and reduced operational risk in production and testing environments.
June 2025
9 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for hiero-consensus-node: Delivered critical robustness and reliability improvements across core consensus functionality. Focused on security-aligned atomic batch processing, test infrastructure stability, and streamlined error handling to reduce production risk and accelerate release cycles. Business value realized through improved throughput predictability, fewer flaky tests, and clearer error semantics for operator troubleshooting.
9 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for hiero-consensus-node: Delivered critical robustness and reliability improvements across core consensus functionality. Focused on security-aligned atomic batch processing, test infrastructure stability, and streamlined error handling to reduce production risk and accelerate release cycles. Business value realized through improved throughput predictability, fewer flaky tests, and clearer error semantics for operator troubleshooting.
June 2025
May 2025
8 Commits • 2 Features
May 1, 2025May 2025 (2025-05) highlights for hiero-consensus-node: strengthened test infrastructure with ID utilities, enabling safer shard/realm configurations and robust TopicID/AccountID handling; introduced and validated Atomic Batch Custom Fees with rollback scenarios; resolved key correctness and precheck risks by fixing inner transaction node handling, jumbo transaction ingestion timing, and auto-renewal validation guard. These changes improve reliability, test coverage, and readiness for feature rollouts across network configurations.
May 2025
8 Commits • 2 Features
May 1, 2025May 2025 (2025-05) highlights for hiero-consensus-node: strengthened test infrastructure with ID utilities, enabling safer shard/realm configurations and robust TopicID/AccountID handling; introduced and validated Atomic Batch Custom Fees with rollback scenarios; resolved key correctness and precheck risks by fixing inner transaction node handling, jumbo transaction ingestion timing, and auto-renewal validation guard. These changes improve reliability, test coverage, and readiness for feature rollouts across network configurations.
April 2025
7 Commits • 4 Features
Apr 1, 2025April 2025 achievements: Focused delivery across hiero-consensus-node to enhance reliability, throughput, and test coverage. Key results include robust token airdrop validation and error handling, jumbo transaction throttling to stabilize network load, gRPC-Web proxy endpoint support for broader client compatibility, and strengthened test infrastructure with expanded coverage. These changes reduce airdrop failures, mitigate congestion, enable smoother client integration, and accelerate QA through standardized test configurations.
7 Commits • 4 Features
Apr 1, 2025April 2025 achievements: Focused delivery across hiero-consensus-node to enhance reliability, throughput, and test coverage. Key results include robust token airdrop validation and error handling, jumbo transaction throttling to stabilize network load, gRPC-Web proxy endpoint support for broader client compatibility, and strengthened test infrastructure with expanded coverage. These changes reduce airdrop failures, mitigate congestion, enable smoother client integration, and accelerate QA through standardized test configurations.
April 2025
March 2025
2 Commits • 1 Features
Mar 1, 20252025-03 Monthly Summary – hiero-ledger/hiero-consensus-node. Focus areas: performance improvements for batched transactions and build reliability. Delivered a byte-based batched transactions representation with parsing/validation updates, enabling faster batched processing. Fixed a compile-time issue in TransactionChecker to restore build health. These changes reduce processing latency and prevent build-time regressions, contributing to system reliability and developer velocity.
March 2025
2 Commits • 1 Features
Mar 1, 20252025-03 Monthly Summary – hiero-ledger/hiero-consensus-node. Focus areas: performance improvements for batched transactions and build reliability. Delivered a byte-based batched transactions representation with parsing/validation updates, enabling faster batched processing. Fixed a compile-time issue in TransactionChecker to restore build health. These changes reduce processing latency and prevent build-time regressions, contributing to system reliability and developer velocity.
February 2025
4 Commits • 2 Features
Feb 1, 2025February 2025: Implemented granular shard/realm aware account and alias creation, config-driven shard/realm assignment for tokens/topics/schedules, and shard/realm correctness/testing improvements. These changes enable non-zero shard/realm support, dynamic configuration, and safer deployment across segmented Hedera networks, delivering clearer isolation, scalability, and stronger validation of shard/realm handling.
4 Commits • 2 Features
Feb 1, 2025February 2025: Implemented granular shard/realm aware account and alias creation, config-driven shard/realm assignment for tokens/topics/schedules, and shard/realm correctness/testing improvements. These changes enable non-zero shard/realm support, dynamic configuration, and safer deployment across segmented Hedera networks, delivering clearer isolation, scalability, and stronger validation of shard/realm handling.
February 2025
January 2025
1 Commits • 1 Features
Jan 1, 2025In January 2025, delivered a focused enhancement to the testing framework within hiero-consensus-node, introducing a Repeatable Test Execution Framework and integrating long-term schedule tests into the repeatable suite. The change reduces test flakiness, shortens feedback loops, and improves CI reliability. This aligns testing with the team's repeatable execution model and lays groundwork for scalable test coverage.
January 2025
1 Commits • 1 Features
Jan 1, 2025In January 2025, delivered a focused enhancement to the testing framework within hiero-consensus-node, introducing a Repeatable Test Execution Framework and integrating long-term schedule tests into the repeatable suite. The change reduces test flakiness, shortens feedback loops, and improves CI reliability. This aligns testing with the team's repeatable execution model and lays groundwork for scalable test coverage.
December 2024
4 Commits • 1 Features
Dec 1, 2024December 2024 highlights: Strengthened reliability of long-term scheduling in hiero-consensus-node (hiero-ledger/hiero-consensus-node) through consolidated test coverage for ScheduleCreate and ScheduleSign flows, including scenarios with and without expiry, plus tests for SYSTEM_ADMIN throttling exemptions and token-fee updates on scheduled transactions. Fixed and simplified ScheduleSign throttling by integrating with the existing throttling framework and removing direct handling from the ThrottleAccumulator. These efforts reduce scheduling-related incidents, improve validation speed, and strengthen governance controls. Demonstrated technologies/skills: test automation, test-plan-driven QA, and alignment with the project’s throttling architecture.
4 Commits • 1 Features
Dec 1, 2024December 2024 highlights: Strengthened reliability of long-term scheduling in hiero-consensus-node (hiero-ledger/hiero-consensus-node) through consolidated test coverage for ScheduleCreate and ScheduleSign flows, including scenarios with and without expiry, plus tests for SYSTEM_ADMIN throttling exemptions and token-fee updates on scheduled transactions. Fixed and simplified ScheduleSign throttling by integrating with the existing throttling framework and removing direct handling from the ThrottleAccumulator. These efforts reduce scheduling-related incidents, improve validation speed, and strengthen governance controls. Demonstrated technologies/skills: test automation, test-plan-driven QA, and alignment with the project’s throttling architecture.
December 2024
November 2024
2 Commits • 1 Features
Nov 1, 20242024-11 monthly summary for hiero-consensus-node focusing on scheduling system improvements, including iterator-based processing, cleanup, and expiration-based purging, along with expanded QA through edge-case tests for disabled long-term scheduling. These changes improve reliability, scalability, and maintainability of execution scheduling, with traceable commits.
November 2024
2 Commits • 1 Features
Nov 1, 20242024-11 monthly summary for hiero-consensus-node focusing on scheduling system improvements, including iterator-based processing, cleanup, and expiration-based purging, along with expanded QA through edge-case tests for disabled long-term scheduling. These changes improve reliability, scalability, and maintainability of execution scheduling, with traceable commits.
Activity
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Quality Metrics
Correctness91.4%
Maintainability87.4%
Architecture86.8%
Performance80.6%
AI Usage20.8%
Skills & Technologies
Programming Languages
GradleGroovyJavaJavaScriptKotlinProtoProtobuf
Technical Skills
API DesignAPI DevelopmentAPI IntegrationBDDBackend DevelopmentBlockchainBuild ScriptingBuild SystemCI/CDCLI DevelopmentCommand Line Interface (CLI)Command-Line Interface (CLI)Configuration ManagementDaggerDependency Injection
Repositories Contributed To
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