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Andrew Bradshaw

PROFILE

Andrew Bradshaw

Over 19 months, contributed to the percona/percona-server-mongodb repository by modernizing its build and CI infrastructure, focusing on cross-platform reliability, performance optimization, and developer tooling. Led the migration to Bazel, integrated advanced profiling with PGO and Bolt, and enabled features like WebAssembly support and automated MSI packaging. Applied C++, Python, and Rust to streamline build scripts, enforce dependency management, and automate testing workflows. Enhanced debugging and deployment by refining static linking, improving debug symbol handling, and expanding platform coverage. The work emphasized maintainable build configurations, robust CI/CD pipelines, and reproducible builds, supporting faster releases and improved developer productivity.

Overall Statistics

Feature vs Bugs

80%Features

Repository Contributions

112Total
Bugs
11
Commits
112
Features
43
Lines of code
1,163,943
Activity Months19

Work History

June 2026

13 Commits • 4 Features

Jun 1, 2026

June 2026: Delivered core build-system enhancements and platform improvements across percona/percona-server-mongodb, with emphasis on reliability, performance visibility, and broader deployment targets. Key initiatives include Build System Simplification, Bolt Profiling and Architecture Optimization, CI/Testing Stabilization, Bazel Build Configuration and Platform Targeting Enhancements, and Rust Build Environment bug fix. Result: reduced build-time complexity and error surface, better profiling data, automated CI improvements, and expanded AL2023/CPU architecture support, enabling faster, more reliable releases.

May 2026

2 Commits • 1 Features

May 1, 2026

May 2026 monthly summary for percona/percona-server-mongodb: Key initiatives centered on performance profiling enhancements and test stability. Delivered CSPGO profiling flags in the build system to improve performance diagnostics and initiated a stabilization effort for the test framework by applying a temporary workaround to a failing test. These changes reduce time-to-insight for performance tuning and decrease CI noise, enabling faster, more reliable releases.

April 2026

8 Commits • 4 Features

Apr 1, 2026

April 2026 — Key platform-wide build improvements and instrumentation for Percona Server for MongoDB. Delivered PPC64LE cargo-bazel cross-build support, macOS cross-compilation stability fixes, PowerPC linker compatibility improvements, Windows Bazel wrapper handling, and MongoDB Bolt instrumentation enhancements. These changes increase platform coverage, reduce cross-compile failures, improve build determinism, and enhance observability for production deployments.

March 2026

4 Commits • 1 Features

Mar 1, 2026

March 2026: Focused on Rust dependency versioning and cross-toolchain build stability for the Percona server MongoDB project. Implemented strict patch-version locking, added and updated Cargo.lock for deterministic builds, and resolved cross-toolchain lock issues to ensure reproducible builds across CI environments.

February 2026

5 Commits • 4 Features

Feb 1, 2026

February 2026: Delivered core enhancements across the percona-server-mongodb repo, focusing on performance optimization enablement, debugging support, CI automation, and workflow improvements. Implemented backport ticketing for PGO optimization and versioned updates management, enabled gdwarf64 for detailed clang symbols, integrated monguard CI in Evergreen, removed exclusions in task generation to streamline commit-queue tasks, and fixed a Prettier formatting guard to protect monguard contents. These changes increase release readiness, debugging efficiency, and pipeline reliability while reducing ticket backlogs and manual coordination.

January 2026

5 Commits • 3 Features

Jan 1, 2026

Summary for 2026-01 focusing on delivering business value, technical improvements, and maintainability for percona/percona-server-mongodb. Achievements cover WebAssembly enablement, installation integrity, and performance/quality improvements across core dependencies and build tooling. Scope and impact are aligned with improving extensibility, deployment reliability, and developer productivity.

December 2025

6 Commits • 1 Features

Dec 1, 2025

December 2025 monthly summary for percona/percona-server-mongodb. Focused on delivering a modernized build system, improved debug/testing configurations, and reliability enhancements that drive faster development cycles and smoother deployments. Improvements span build toolchain modernization, Abseil integration, static linking, and refined debug/test configurations, alongside a Linux debug information reliability fix.

November 2025

4 Commits • 2 Features

Nov 1, 2025

November 2025 monthly summary for percona/percona-server-mongodb focusing on developer tooling improvements and build-system modernization to enhance cross-platform reliability and maintainability. Deliverables drove reduced lint noise, clearer actionable output, and a streamlined, maintainable build configuration across Windows and Linux.

October 2025

3 Commits • 2 Features

Oct 1, 2025

2025-10 Monthly Summary — Percona Server MongoDB: Infrastructure stabilization and profiling data governance drive faster release readiness and more reliable performance insights. Stabilized cross-architecture CI by reverting aubsan to RHEL8 and adjusting s390x tests to an 8-way split, reducing build flakiness and test runtime variability. Moved ownership of PGO profiling data to the performance team and updated CODEOWNERS, OWNERS.yml, and profiling_data.bzl to reference new data URLs, clarifying accountability and accelerating profiling workflows.

September 2025

8 Commits • 3 Features

Sep 1, 2025

September 2025 (2025-09) monthly summary for percona/percona-server-mongodb. Focused on strengthening CI/build reliability, delivering targeted performance improvements, and automating profiling workflows to reduce manual overhead. The changes improve delivery velocity, benchmarking fidelity, and cross-platform consistency, with clear business value in faster, more reliable releases and better insight into performance characteristics.

July 2025

1 Commits • 1 Features

Jul 1, 2025

Concise monthly summary for 2025-07 focusing on business value and technical achievements for the percona/percona-server-mongodb repository.

June 2025

6 Commits • 3 Features

Jun 1, 2025

June 2025 focused on strengthening Windows CI reliability, refining build configurations for open-source and enterprise builds, and improving cross-language tooling, while reducing CI noise. Delivered concrete value across percona/percona-server-mongodb by enabling automated Windows MSI testing in CI with signing prerequisites, propagating enterprise flags through OSS builds, and cleaning up GRPC import paths. Also reduced unnecessary CI steps and hardened Windows scripting with UTF-8 handling for YAML. These changes lower deployment risk, improve cross-platform consistency, and support scalable release processes.

May 2025

4 Commits • 1 Features

May 1, 2025

Concise monthly summary for 2025-05 focusing on Bazel build improvements in percona/percona-server-mongodb. Implemented performance and reliability enhancements to the Bazel-based build, delivering faster, more deterministic builds and a cleaner developer experience.

April 2025

6 Commits • 2 Features

Apr 1, 2025

April 2025 monthly summary for percona/percona-server-mongodb. Key achievements include macOS distribution readiness for mongo_crypt (packaging/notarization) and substantial build-system improvements to accelerate CI, improve debug information, and enhance Evergreen workflows. Focused on packaging reliability, security posture, and faster release cycles, with clear demonstrations of cross-cutting engineering skills.

March 2025

7 Commits • 2 Features

Mar 1, 2025

March 2025: Modernized CI/build infrastructure for percona-server-mongodb, delivering Bazel-based migration from SCons with enhanced test infra and MSI packaging, Windows CI hardware upgrades, and macOS packaging reliability fixes. These changes reduce build times, improve packaging reliability, and broaden platform coverage, accelerating release cycles and overall developer productivity.

February 2025

6 Commits • 4 Features

Feb 1, 2025

February 2025: Delivered substantial improvements to the build/test pipeline for percona/percona-server-mongodb. Key outcomes include: 1) Bazel Build Tool Upgrade to 7.5.0 (commit 802e24e43f890aaa4d1def76abc85c7e91a31a55), with updated Bazel version file and refreshed S3 hash mappings across architectures to improve stability and performance; 2) MongoT integration in Bazel for Evergreen tasks, enabling optional MongoT binaries to be downloaded and integrated as part of the test/build workflows (commit 254cb9375520440006484205f7543326ca6acb27); 3) Automated Bazel target generation for install, test, and bench suites using dynamic BUILD.bazel generation A scripts and flags/config, including reverts to re-enable enterprise-related targets (commits 47332ed76df0eb4b6ac4c1cc8159adf7dd0f9617, d7553ed000a269c0cbdebcc2a121a957141fc29a, 770f764bacd543804d196a75643ece781d07ac7e); 4) Collect Installed Test Binaries During Install by extending Bazel rules to output a list of installed test binaries for easier management and traceability (commit 7d40c39cd2b31c2431e242eb52f052aa3ad85268). These changes reduce build times, improve reproducibility, and enable more predictable Evergreen-based CI workflows.

January 2025

9 Commits • 2 Features

Jan 1, 2025

January 2025 monthly summary for percona/percona-server-mongodb: Focused on improving build reliability and release readiness through Bazel build system enhancements and Windows MSI packaging, delivering measurable business value through faster local development, consistent installers, and smoother CI workflows.

December 2024

11 Commits • 1 Features

Dec 1, 2024

December 2024 (Month: 2024-12) – For percona/percona-server-mongodb, delivered a modernization of the build system with targeted Windows reliability improvements and cross-platform performance enhancements. Key features delivered include a Bazel-based build system overhaul paired with developer tooling: build profiles, deterministic developer build versioning, migration of test binaries to Bazel, and experiments with fission and remote caching, along with distro-specific feature toggles to optimize build performance and developer experience. Major bugs fixed include Windows-specific build integration issues resolved by switching to file copies instead of hardlinks, ensuring reliable cleanup and execution steps. Additional Linux optimization included avoiding intermediate .a files during static linking to reduce artifact churn and speed up builds. Overall impact: faster, more reproducible builds across platforms, improved developer onboarding, and reduced CI risk due to Windows build fragility. Technologies/skills demonstrated: Bazel-based tooling and build-system modernization, cross-platform development, Windows build integration, performance optimization, and build-system experimentation (fission, remote caching).

November 2024

4 Commits • 2 Features

Nov 1, 2024

2024-11 Monthly Summary for percona/percona-server-mongodb: This period focused on upgrading the build system, optimizing build performance, and stabilizing cross-platform builds. Deliveries improved CI reliability, reduced build times, and enhanced cache efficiency on Windows, enabling faster iteration and broader platform support.

Activity

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Quality Metrics

Correctness89.0%
Maintainability85.8%
Architecture86.2%
Performance80.4%
AI Usage22.2%

Skills & Technologies

Programming Languages

BashBazelBicepBzlC++JavaScriptMarkdownPythonRustShell

Technical Skills

API integrationAutomationBazelBazel build systemBuild AutomationBuild ConfigurationBuild EngineeringBuild ScriptingBuild SystemBuild System ConfigurationBuild SystemsBuild ToolsC++C++ BuildC++ Build Systems

Repositories Contributed To

1 repo

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

percona/percona-server-mongodb

Nov 2024 Jun 2026
19 Months active

Languages Used

BzlMarkdownPythonShellC++StarlarkYAMLBazel

Technical Skills

BazelBuild System ConfigurationBuild SystemsCross-platform DevelopmentEnvironment Variable ManagementSCons