EXCEEDS logo
Exceeds
Yury Kiselev

PROFILE

Yury Kiselev

Over ten months, contributed to the ydb-platform/ydb repository by engineering robust backend features focused on security, access control, and secret management. Leveraging C++ and Python, delivered modular authentication pipelines, granular permission models, and comprehensive schema secrets lifecycle management, including ACL inheritance and feature flag enablement. Enhanced system reliability through improved error handling, backup stability, and node registration processes, while expanding automated test coverage for integration, replication, and compatibility scenarios. Updated documentation to align with evolving security practices and terminology, ensuring operational clarity. This work strengthened the platform’s security posture, maintainability, and developer productivity across distributed database and cloud integration workflows.

Overall Statistics

Feature vs Bugs

88%Features

Repository Contributions

53Total
Bugs
2
Commits
53
Features
15
Lines of code
12,760
Activity Months10

Your Network

580 people

Shared Repositories

479
Aleksandr DuplishchevMember
3y3k0Member
a-dyuMember
Anton RomanovMember
Andrey MaslovMember
aaprokopyevMember
aavorotnikovMember
abityugovMember
abramov-alexMember

Work History

March 2026

1 Commits • 1 Features

Mar 1, 2026

Month: 2026-03 — Focused on improving node registration reliability in ydb-platform/ydb. Delivered core reliability enhancements, stabilized critical test suites, and strengthened onboarding stability, translating to reduced registration failures and faster issue diagnosis.

February 2026

8 Commits • 2 Features

Feb 1, 2026

February 2026 monthly summary for ydb-platform/ydb focused on security hardening, reliability, and documentation improvements. Delivered significant enhancements to monitoring security posture, fixed a data race in MTLS-enabled HTTP proxy, and clarified secrets management practices. These changes reduce production risk, improve developer velocity, and provide a clearer baseline for secrets handling.

January 2026

3 Commits • 1 Features

Jan 1, 2026

January 2026 monthly summary for ydb-platform/ydb focusing on key product deliverables, reliability improvements, and security enhancements in the development environment. Key Achievements: - Tablet Development Environment Security Enhancements (feature): Implemented UI hardening by hiding sensitive values and added access rights verification for tablet content, reducing exposure risk during development. Commits include b8e10ed73b0297c65caec3a9f7b7c7f20985eb0b and ae24fdd8b08b42ef2a809b890f2297688f19e02b. Also added test coverage for tablet content rights (commit noted in #32559). - Backup Process Stability Improvements (bug): Prevent crashes during backup by skipping items created after the backup process starts, resulting in more reliable backups. Commit: 055b6e6df7af913215a4cce345b8d9f20aa684d4. Overall Impact and Accomplishments: - Strengthened security posture for development workflows by hardening the tablet development UI and enforcing content access controls. - Increased backup reliability and stability, reducing risk of crashes when backing up newly created objects. - Delivered with clear code changes and accompanying tests to support maintainability and future auditing. Technologies/Skills Demonstrated: - UI security enhancements, access control implementation, and test-driven development. - Change management via commit-driven development and targeted testing. - Reliability engineering through crash prevention and stability improvements.

December 2025

9 Commits • 1 Features

Dec 1, 2025

December 2025 monthly summary for ydb-platform/ydb: Delivered Secret Management System Enhancements across data transfers, replication, external data sources, backups, and schema secrets; introduced retrieval methods, multi-entry secret support, and default enablement of schema secrets; strengthened error handling and SchemeCache resilience. Added functional migration tests and updated tests to use new scheme secrets; started the new secret service with feature flag considerations and enabled the flag by default to reduce configuration burden. This work drives security, reliability, and operational efficiency across critical data workflows.

November 2025

2 Commits • 2 Features

Nov 1, 2025

Monthly summary for 2025-11 for repository ydb-platform/ydb focusing on two key features delivered: documentation terminology alignment for blob encryption and a default-off change for schema secrets. The work improves consistency between documentation and code, strengthens default security posture, and improves maintainability through clearer feature flags and test coverage.

October 2025

9 Commits • 3 Features

Oct 1, 2025

Monthly summary for 2025-10 focusing on delivering secure secret management, expanding schema secrets adoption, and validating data interoperability. Implemented group-based access control for secrets, scope secret lookups to databases, ensured ACL inheritance correctness, and refined deny behavior. Enabled schema secrets by default, added tests for disabled feature flag, and expanded test coverage including replication scenarios. Added compatibility tests for S3-based external data tables to ensure interoperability across scenarios. These efforts improved security posture, reliability, and developer productivity through better governance and automated testing.

September 2025

13 Commits • 1 Features

Sep 1, 2025

September 2025 – Delivered a comprehensive Schema Secrets Management and Security Enhancements for the ydb platform, consolidating core secrets lifecycle (create/alter/drop), inheritance, ACL handling, SQL integration, restricted-path validation, secret description options, and the schema secrets service. Implemented caching and batch resolution, user token support, and subscription-based cleanup on secret removals. Introduced feature flag EnableSchemaSecrets and added support for external data sources using schema secrets to enable controlled rollout and external-source integration. Enhanced AST-based SQL secret command processing and integrated secret service describe tooling (KQP) to improve observability and maintenance. Improved test coverage with targeted fixes for edge cases."

August 2025

2 Commits • 1 Features

Aug 1, 2025

August 2025 monthly summary for ydb-platform/ydb. Focused on tightening permission controls for secondary index creation and updating documentation to reflect the new model. Delivered a security-focused enhancement to the access control policy, reducing risk of unauthorized index creation and improving auditability. No separate bug fixes required beyond security/permission realignment in this period.

July 2025

2 Commits • 1 Features

Jul 1, 2025

July 2025: Strengthened YDB security test coverage by delivering a dedicated integration test suite for table grants within the security module. The suite defines grant types for table operations and CDC, and validates access control across core operations including creating, altering, dropping tables, and managing change feeds and topic consumers. This work lays the foundation for automated security validation and faster safe rollout of permission changes.

June 2025

4 Commits • 2 Features

Jun 1, 2025

June 2025 monthly summary for ydb-platform/ydb focusing on security, modular authentication, and documentation improvements. Delivered an extensible authentication pipeline with clarified permissions guidance, improving security posture and maintainability with minimal risk to existing login flows.

Activity

Loading activity data...

Quality Metrics

Correctness93.4%
Maintainability86.6%
Architecture87.0%
Performance81.0%
AI Usage21.6%

Skills & Technologies

Programming Languages

C++GraphMLJSONMarkdownProtoPythonprotobuf

Technical Skills

API developmentAPI securityAPI testingAccess ControlActor ModelAuthenticationBackend DevelopmentC++C++ developmentC++ programmingCI/CDCloud IntegrationCode RefactoringCompatibility TestingDatabase

Repositories Contributed To

1 repo

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

ydb-platform/ydb

Jun 2025 Mar 2026
10 Months active

Languages Used

C++MarkdownPythonProtoprotobufJSONGraphML

Technical Skills

Actor ModelAuthenticationBackend DevelopmentCode RefactoringDocumentationSystem Design