owid/owid-grapher
Nov 2024 – Sep 2025
6 Months active
Languages Used
JavaScriptTypeScriptHTMLSCSSCSSReactSQLtsx
Technical Skills
AnalyticsConfigurationConfiguration ManagementError MonitoringFront End DevelopmentFrontend Development
bnjmacdonald
PROFILE
Bnjmacdonald
Ben Macdonald developed experimentation and analytics infrastructure for the owid/owid-grapher repository, focusing on privacy-aware A/B testing, robust telemetry, and data-driven UX improvements. He implemented a cookie-based A/B testing framework, integrated Sentry session replay with consent gating, and delivered data insights experiments to enhance user engagement measurement. His work included refactoring middleware for reliable cookie handling, consolidating experiment configuration, and improving UI/UX with React, TypeScript, and SCSS. By addressing bugs in analytics attribution and session management, Ben ensured accurate data collection and maintainable code. The depth of his contributions enabled faster iteration, improved data quality, and more reliable product analytics.
Overall Statistics
Feature vs Bugs
44%Features
Repository Contributions
81Total
Bugs
19
Commits
81
Features
15
Lines of code
6,667
Activity Months6
Work History
September 2025
18 Commits • 1 Features
Sep 1, 2025September 2025 focused on delivering a robust Data Page Insights Buttons Experiment in owid-grapher, hardening telemetry, and improving stability. The month combined a major feature rollout with targeted bug fixes and maintenance work to reduce noise and improve data reliability. Business value centers on improved data discovery UX, more reliable error telemetry, and a maintainable experimentation workflow that accelerates iteration cycles.
18 Commits • 1 Features
Sep 1, 2025September 2025 focused on delivering a robust Data Page Insights Buttons Experiment in owid-grapher, hardening telemetry, and improving stability. The month combined a major feature rollout with targeted bug fixes and maintenance work to reduce noise and improve data reliability. Business value centers on improved data discovery UX, more reliable error telemetry, and a maintainable experimentation workflow that accelerates iteration cycles.
September 2025
August 2025
53 Commits • 10 Features
Aug 1, 2025August 2025 – Owid Grapher delivered a focused set of data-page experimentation features, strengthened AB testing and cookie handling infrastructure, and comprehensive UI/UX improvements, while resolving stability and data-accuracy bugs. The month included a Data Page Experiments rollout with A/B tests for insights links, a topic-filtered view of data insights, and a new c1 arm with adjusted rendering for experimental conditions; a major AB testing middleware refactor with improved cookie parsing/serialization and cookie handling; consolidation of experiment config and assignedExperiments into shared utilities; and ongoing UI/SCSS enhancements. These efforts demonstrate strong proficiency with React/TypeScript, hooks, cookie management, and utils-driven architecture, delivering tangible business value through more reliable experiments, accurate data insights, better instrumentation, and lower maintenance overhead.
August 2025
53 Commits • 10 Features
Aug 1, 2025August 2025 – Owid Grapher delivered a focused set of data-page experimentation features, strengthened AB testing and cookie handling infrastructure, and comprehensive UI/UX improvements, while resolving stability and data-accuracy bugs. The month included a Data Page Experiments rollout with A/B tests for insights links, a topic-filtered view of data insights, and a new c1 arm with adjusted rendering for experimental conditions; a major AB testing middleware refactor with improved cookie parsing/serialization and cookie handling; consolidation of experiment config and assignedExperiments into shared utilities; and ongoing UI/SCSS enhancements. These efforts demonstrate strong proficiency with React/TypeScript, hooks, cookie management, and utils-driven architecture, delivering tangible business value through more reliable experiments, accurate data insights, better instrumentation, and lower maintenance overhead.
July 2025
4 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary for owid/owid-grapher focused on delivering privacy-aware AB testing enhancements and reducing cross-experiment styling leakage. Key initiatives gated session replay with AB testing and consent signals, improving analytic fidelity while respecting user privacy. Also stabilized the replay initialization flow and tightened CSS scoping to prevent experiment leakage across tests.
4 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary for owid/owid-grapher focused on delivering privacy-aware AB testing enhancements and reducing cross-experiment styling leakage. Key initiatives gated session replay with AB testing and consent signals, improving analytic fidelity while respecting user privacy. Also stabilized the replay initialization flow and tightened CSS scoping to prevent experiment leakage across tests.
July 2025
June 2025
2 Commits • 1 Features
Jun 1, 2025June 2025: Focused on introducing data-driven experimentation capabilities in the owid-grapher repository. Delivered a foundational A/B Testing Framework with cookie-based user assignment and randomized arm allocation, designed to integrate with existing middleware and page handling. This work establishes a backbone for controlled UX experiments and performance-driven feature validation across the user journey. Major bugs fixed: none reported this month. Overall impact: enables faster validation of UX and feature changes, supporting evidence-based product decisions and optimization. Technologies/skills demonstrated: backend design for experimentation, cookie-based session management, middleware integration, and cross-repo collaboration with owid-grapher.
June 2025
2 Commits • 1 Features
Jun 1, 2025June 2025: Focused on introducing data-driven experimentation capabilities in the owid-grapher repository. Delivered a foundational A/B Testing Framework with cookie-based user assignment and randomized arm allocation, designed to integrate with existing middleware and page handling. This work establishes a backbone for controlled UX experiments and performance-driven feature validation across the user journey. Major bugs fixed: none reported this month. Overall impact: enables faster validation of UX and feature changes, supporting evidence-based product decisions and optimization. Technologies/skills demonstrated: backend design for experimentation, cookie-based session management, middleware integration, and cross-repo collaboration with owid-grapher.
January 2025
1 Commits
Jan 1, 2025January 2025 monthly summary for owid/owid-grapher with a focus on analytics instrumentation and data quality. This period centered on correcting GA chart download event tracking to ensure accurate attribution and reliable downstream analytics.
1 Commits
Jan 1, 2025January 2025 monthly summary for owid/owid-grapher with a focus on analytics instrumentation and data quality. This period centered on correcting GA chart download event tracking to ensure accurate attribution and reliable downstream analytics.
January 2025
November 2024
3 Commits • 2 Features
Nov 1, 2024November 2024 monthly summary for owid/owid-grapher focused on delivering privacy-preserving telemetry and enhanced user interaction analytics. Key features include Sentry Session Replay privacy and consent enhancements with DSN configuration, form input masking to prevent data leakage, and restricting replay collection to users who have consented to analytics and are not within an iframe. Additionally, interaction tracking for the Data Insight page Copy Link button was implemented to quantify user engagement. This work balances observability with data governance, improving trust and reducing risk while enabling actionable product analytics and performance monitoring.
November 2024
3 Commits • 2 Features
Nov 1, 2024November 2024 monthly summary for owid/owid-grapher focused on delivering privacy-preserving telemetry and enhanced user interaction analytics. Key features include Sentry Session Replay privacy and consent enhancements with DSN configuration, form input masking to prevent data leakage, and restricting replay collection to users who have consented to analytics and are not within an iframe. Additionally, interaction tracking for the Data Insight page Copy Link button was implemented to quantify user engagement. This work balances observability with data governance, improving trust and reducing risk while enabling actionable product analytics and performance monitoring.
Activity
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Quality Metrics
Correctness89.2%
Maintainability88.8%
Architecture84.8%
Performance84.2%
AI Usage21.4%
Skills & Technologies
Programming Languages
CSSHTMLJavaScriptReactSCSSSQLTypeScripttsx
Technical Skills
A/B TestingA/B Testing ConfigurationAPI DevelopmentAPI OptimizationAnalyticsAnalytics IntegrationBEMBackend DevelopmentBackend IntegrationBackend developmentBug FixingCSSCloudflare WorkersCode CleanupCode Organization
Repositories Contributed To
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