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Mike Williams

PROFILE

Mike Williams

Over four months, M. Williams developed and enhanced experiment analytics dashboards in the mozilla/looker-spoke-default repository, focusing on business intelligence and data-driven decision support. Williams implemented sampling-based metrics, dynamic date filtering, and unified tracking of user preference changes, using LookML and SQL to model and visualize data. The work included refactoring dashboards to leverage Glean events for improved data granularity and consistency, as well as standardizing event labeling for clarity. By addressing both feature development and targeted bug fixes, Williams delivered maintainable, well-documented solutions that improved measurement accuracy, dashboard clarity, and the overall reliability of experimentation analysis for product teams.

Overall Statistics

Feature vs Bugs

83%Features

Repository Contributions

9Total
Bugs
1
Commits
9
Features
5
Lines of code
2,119
Activity Months4

Work History

October 2025

2 Commits • 1 Features

Oct 1, 2025

October 2025 monthly summary for mozilla/looker-spoke-default. Focused on delivering a unified capability to track user preference changes (changed_pref) across experiments and enrollments dashboards, with an emphasis on business value and data-driven insights.

June 2025

2 Commits • 1 Features

Jun 1, 2025

June 2025: Focused on delivering and stabilizing experiment enrollment analysis dashboards for mozilla/looker-spoke-default. Implemented initial Looker dashboard for enrollments and related metrics, followed by a Glean-based refactor that uses Glean events for consistency and finer data granularity. This work provided consolidated metrics, improved data governance, and faster insights into experiment performance. No major bugs reported; engineering cadence remained steady with validation of data pipelines. Key commits include 54201ee6523229eb9b5536d89889eb9eaebe5862 and af41be7f9ba41d74b7edfd8f844f86f9e6aef992.

March 2025

2 Commits • 1 Features

Mar 1, 2025

Month 2025-03 — Delivered dashboard date filter integration and labeling consistency for mozilla/looker-spoke-default. Key features: dashboards now dynamically follow the dashboard date filter by removing default timeframes; event count labeling across dashboards standardized, with 'Adjusted Event Count' for general charts and updated the calculated field label to 'Approximate Event Count' in the experiment enrollments dashboard. Fixed a regression where daily enrollments charts did not respect the dashboard date filter. Impact: improved data accuracy, cross-dashboard consistency, and faster, clearer decision-making for product and data teams. Technologies/skills: Looker dashboards, data visualization, label standardization, field renaming, and targeted refactoring.

February 2025

3 Commits • 2 Features

Feb 1, 2025

February 2025 monthly summary for mozilla/looker-spoke-default focusing on delivering business value through dashboard enhancements and metrics accuracy. Key work includes sampling-based enhancements to the Experiment enrollments dashboard, a dynamic 1% sampling-based approximation for unenrollment counts, and a bug fix to improve error analytics reliability by excluding EnrollmentNotCompleteException from the total error count. These changes enhance dashboard clarity, measurement accuracy, and decision-support signals for product analytics teams.

Activity

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Quality Metrics

Correctness90.0%
Maintainability91.2%
Architecture86.6%
Performance84.4%
AI Usage20.0%

Skills & Technologies

Programming Languages

LookMLSQL

Technical Skills

Business IntelligenceDashboard ConfigurationDashboard DevelopmentDashboardingData AnalysisData EngineeringData FilteringData ModelingData VisualizationExperimentation AnalysisLookMLLookerSQL

Repositories Contributed To

1 repo

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

mozilla/looker-spoke-default

Feb 2025 Oct 2025
4 Months active

Languages Used

LookMLSQL

Technical Skills

Dashboard ConfigurationDashboard DevelopmentDashboardingData AnalysisData FilteringData Visualization

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