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Arkadiusz Komarzewski

PROFILE

Arkadiusz Komarzewski

Over four months, Adam Komarzewski enhanced data analytics and governance across several Mozilla repositories. He expanded the mozilla/looker-spoke-default Looker models by exposing granular event dimensions and later improved BI stability by hiding deprecated explores, using LookML and SQL for robust data modeling. In mozilla/gcp-ingestion, Adam updated scrubbing rules to strengthen data privacy and quality, leveraging Java and YAML for precise data ingestion and processing. He also implemented automated data retention for iOS fx-accounts in mozilla/probe-scraper, aligning with privacy requirements through configuration management. Adam’s work demonstrated thoughtful engineering depth, balancing feature delivery, compliance, and long-term maintainability.

Overall Statistics

Feature vs Bugs

75%Features

Repository Contributions

5Total
Bugs
1
Commits
5
Features
3
Lines of code
128
Activity Months4

Work History

October 2025

1 Commits • 1 Features

Oct 1, 2025

For 2025-10, the focus was stability, governance, and preserving BI assets in the Looker models for mozilla/looker-spoke-default. Delivered a targeted feature to hide the funnel_analysis explore due to reliance on unmaintained tables and low usage, which prevents new discovery from outdated surfaces and protects existing dashboards and looks. The change was implemented with a clear commit (DENG-9951): 3b0df6d88a2acf2ef57e20b3ebbca281dd904576. This work reduces maintenance risk, simplifies discovery, and preserves business analytics assets without impacting current user workflows.

July 2025

1 Commits • 1 Features

Jul 1, 2025

July 2025 monthly summary for mozilla/probe-scraper: Delivered automated data retention for iOS fx-accounts to automatically delete data after 30 days, aligning with data governance and privacy requirements. No major bugs fixed this month. Overall impact: improved data lifecycle management, reduced storage footprint, and clearer policy enforcement. Technologies/skills demonstrated include policy configuration, data lifecycle implementation, and Git-based workflow.

March 2025

2 Commits

Mar 1, 2025

In March 2025, I focused on strengthening data quality and privacy in the mozilla/gcp-ingestion ingestion pipeline. I delivered a targeted bug fix that updates the Telemetry Data Ingestion Scrubbing Rules (IGNORED_TELEMETRY_DOCTYPES) to scrub additional sources, preventing ingestion of unwanted data and improving overall data quality and privacy. The change was implemented via two commits tied to Bug 1955662 and Bug 1955660, demonstrating precise traceability and alignment with stakeholder expectations. This work reduces noisy data, enhances analytics accuracy, and supports compliance requirements while maintaining a lean, auditable ingestion pipeline.

December 2024

1 Commits • 1 Features

Dec 1, 2024

December 2024 — mozilla/looker-spoke-default: Delivered a key analytics feature that enhances Accounts data stream granularity and reporting capabilities. Implemented exposure of additional event extras as dimensions by extending the Events data surface (events_stream_with_extras) in the Explore/View layer, enabling finer-grained analysis for product, marketing, and growth initiatives.

Activity

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Quality Metrics

Correctness96.0%
Maintainability96.0%
Architecture96.0%
Performance96.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

JavaLookMLSQLYAML

Technical Skills

Bug FixingConfiguration ManagementData IngestionData ModelingData ProcessingData ScrubbingETLLooker Development

Repositories Contributed To

3 repos

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

mozilla/looker-spoke-default

Dec 2024 Oct 2025
2 Months active

Languages Used

LookMLSQL

Technical Skills

Data ModelingETLLooker Development

mozilla/gcp-ingestion

Mar 2025 Mar 2025
1 Month active

Languages Used

Java

Technical Skills

Bug FixingData IngestionData ProcessingData Scrubbing

mozilla/probe-scraper

Jul 2025 Jul 2025
1 Month active

Languages Used

YAML

Technical Skills

Configuration Management

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