
Polina Kriukova engineered robust CI/CD pipelines and automated testing workflows across Netcracker’s qubership-consul, qubership-zookeeper, and qubership-kafka repositories. She improved reliability by pinning test pipelines to specific commit hashes and updating YAML-based configurations, ensuring deterministic and reproducible test runs. Leveraging GitHub Actions and Python, Polina automated Zookeeper’s test execution and stabilized Kafka integration tests by handling edge-case errors, reducing CI flakiness and manual QA effort. Her work focused on cross-repository integration, version governance, and feedback acceleration, resulting in safer releases and more efficient development cycles. The solutions demonstrated strong depth in CI/CD automation and workflow configuration.

Monthly summary for 2025-10 (Netcracker/qubership-kafka): Key reliability improvements delivered through targeted bug fix in Kafka integration tests, with a focus on reducing CI flakiness and speeding feedback loops for downstream teams.
Monthly summary for 2025-10 (Netcracker/qubership-kafka): Key reliability improvements delivered through targeted bug fix in Kafka integration tests, with a focus on reducing CI flakiness and speeding feedback loops for downstream teams.
Month: 2025-09. Focused on stabilizing CI for Netcracker/qubership-zookeeper by updating the Zookeeper test pipeline configuration to point at the latest test pipeline commit, ensuring tests run against the correct service branch.
Month: 2025-09. Focused on stabilizing CI for Netcracker/qubership-zookeeper by updating the Zookeeper test pipeline configuration to point at the latest test pipeline commit, ensuring tests run against the correct service branch.
August 2025: Delivered deterministic CI improvements for Netcracker/qubership-zookeeper and Netcracker/qubership-consul, focusing on reliability, reproducibility, and faster feedback for releases. Key changes include pinning test pipelines to specific commits, excluding Dependabot-triggered runs, and updating versions.yaml and run_tests.yaml to align with latest configurations. These changes reduce flaky tests, improve test determinism, and enable safer, faster release cycles.
August 2025: Delivered deterministic CI improvements for Netcracker/qubership-zookeeper and Netcracker/qubership-consul, focusing on reliability, reproducibility, and faster feedback for releases. Key changes include pinning test pipelines to specific commits, excluding Dependabot-triggered runs, and updating versions.yaml and run_tests.yaml to align with latest configurations. These changes reduce flaky tests, improve test determinism, and enable safer, faster release cycles.
Month: 2025-07 — Netcracker/qubership-zookeeper: Delivered automated testing pipeline for the Zookeeper service, enabling continuous, hands-off test execution for PRs and main branch synchronization. Implemented a GitHub Actions workflow that orchestrates a reusable Zookeeper test pipeline from an external repository with required parameters and secrets. This change reduces manual QA effort, accelerates feedback on code changes, and improves CI reliability. Commit 366a380fb0d49990b11f613bc81e91886f2eadd2 captures the primary change: 'Add a workflow to run Zookeeper test pipeline (#45)'. Overall, the month established a scalable CI foundation for Zookeeper testing and demonstrated strong CI/CD craftsmanship. Major focus: automation, cross-repo integration, and parameterized pipelines to support consistent testing across environments.
Month: 2025-07 — Netcracker/qubership-zookeeper: Delivered automated testing pipeline for the Zookeeper service, enabling continuous, hands-off test execution for PRs and main branch synchronization. Implemented a GitHub Actions workflow that orchestrates a reusable Zookeeper test pipeline from an external repository with required parameters and secrets. This change reduces manual QA effort, accelerates feedback on code changes, and improves CI reliability. Commit 366a380fb0d49990b11f613bc81e91886f2eadd2 captures the primary change: 'Add a workflow to run Zookeeper test pipeline (#45)'. Overall, the month established a scalable CI foundation for Zookeeper testing and demonstrated strong CI/CD craftsmanship. Major focus: automation, cross-repo integration, and parameterized pipelines to support consistent testing across environments.
June 2025: Netcracker/qubership-consul delivered CI workflow stability improvements by pinning the shared test pipelines to a specific updated commit hash and updating the pipeline branch reference. This ensured deterministic, reproducible test runs across environments, reduced flaky builds, and improved feedback speed to developers. The change is anchored by commit 8f6a6a42624bf36addc18e54d428148ca9c5c058 with message 'fix: Update run tests workflow version (#56)'. Overall, this work strengthens CI reliability, governance, and time-to-feedback, enabling safer releases and faster iteration.
June 2025: Netcracker/qubership-consul delivered CI workflow stability improvements by pinning the shared test pipelines to a specific updated commit hash and updating the pipeline branch reference. This ensured deterministic, reproducible test runs across environments, reduced flaky builds, and improved feedback speed to developers. The change is anchored by commit 8f6a6a42624bf36addc18e54d428148ca9c5c058 with message 'fix: Update run tests workflow version (#56)'. Overall, this work strengthens CI reliability, governance, and time-to-feedback, enabling safer releases and faster iteration.
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