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Sascha Brawer

PROFILE

Sascha Brawer

Over nine months, contributed to alltheplaces/alltheplaces, capnproto/capnproto, and containers/buildah by building and maintaining robust data extraction pipelines and improving build systems. Developed and enhanced web scrapers in Python and Scrapy to expand datasets for Swiss public transport, accommodations, and natural features, integrating data enrichment via Wikidata SPARQL and GeoJSON processing. Addressed site changes and library updates to ensure scraping reliability, implemented validation and parsing improvements for data quality, and maintained codebases through targeted maintenance in CMake and Go. The work emphasized maintainability, data integrity, and seamless integration of new features into existing data engineering workflows.

Overall Statistics

Feature vs Bugs

67%Features

Repository Contributions

16Total
Bugs
5
Commits
16
Features
10
Lines of code
775
Activity Months9

Your Network

134 people

Work History

May 2026

3 Commits • 2 Features

May 1, 2026

Summary for 2026-05: Alltheplaces team delivered three focused outcomes: expanding data coverage with a new Stadt Zürich tree data spider; stabilizing scraping across library updates by addressing a Scrapy deprecation; and raising data quality through robust URL and handle validation in the item pipeline. These changes improved dataset breadth, reduced runtime warnings and compatibility risk, and strengthened data integrity for downstream users and partners. Technologies demonstrated include Scrapy, Python data pipelines, and validation best practices; collaborative commits demonstrate maintainability and teamwork.

January 2026

3 Commits • 2 Features

Jan 1, 2026

January 2026 (2026-01) monthly summary for alltheplaces/alltheplaces focusing on business value and technical delivery. Delivered coordinated scraping and data-parsing improvements across DiscoverSwissSpider, Location Services, and OpenTransportData SwissSpider, expanding data coverage, improving reliability, and fixing data integrity. Key outcomes include extended scraping capabilities under DiscoverSwissSpider, more robust JSON extraction for location data, and corrected CSV file handling for OpenTransportData SwissSpider.

July 2025

1 Commits

Jul 1, 2025

July 2025: Focused on strengthening build reliability for capnproto/capnproto by implementing a robust global CMake include guard. This change prevents multiple inclusions of the CMake configuration, reducing sporadic build failures and conflicts in multi-target environments. The fix, tracked under commit 767ee09e462203c3bc6660deb942dcdd02c1486b ('Guard against multiple cmake inclusions'), lays groundwork for more modular build configurations and smoother CI workflows. Overall, this reduces maintenance overhead and stabilizes downstream builds while showcasing proficiency in CMake-based build systems and version control practices.

May 2025

1 Commits • 1 Features

May 1, 2025

Month 2025-05 summary: Focused maintenance in containers/buildah delivering a targeted readability improvement in the Copier package via code comment cleanup. No functional changes were introduced. This work enhances maintainability, reduces onboarding friction, and documents attention to detail. Commit referenced: ada0ac0b894d5099d3c38a06c5d3a2a17a6ffffa ("Fix typo in comment (#6167)").

March 2025

2 Commits • 2 Features

Mar 1, 2025

March 2025 focused on delivering two high-impact features that enhance data navigation and broaden data coverage, while reinforcing the team’s ability to process and ingest geographic datasets.

February 2025

2 Commits • 1 Features

Feb 1, 2025

February 2025 monthly summary for alltheplaces/alltheplaces: Key features delivered include Swiss Data Scraping Enhancements with Discover.swiss spider (covering 3,843 hotels and 54 serviced apartments) and improved lodging attribute parsing and payment handling; and OpenTransportData.swiss spider enrichment to fetch and attach operator Wikidata IDs via Wikidata SPARQL endpoint for station data enrichment. Minor blockers: no major bug fixes reported; focus on feature delivery and data quality.

January 2025

1 Commits

Jan 1, 2025

Month: 2025-01 | Repository: alltheplaces/alltheplaces | Focus: maintain scraping reliability for Opentransportdata Swiss spider amid external site changes. Key work included updating the spider to reflect changes in site structure and domain, revising allowed_domains, dataset URL patterns, and the locator for wheelchair data download links to preserve scraping functionality. Commit reference: 4ef6ad80d35c4135fc8eddff858b0e5fdafbb970 with message "[OpenTranportData.swiss] Adjust spider to new site structure (#12094)". Business value: ensured continuous data ingestion for downstream analytics and partner integrations with minimal downtime.

December 2024

2 Commits • 1 Features

Dec 1, 2024

December 2024 monthly summary for alltheplaces/alltheplaces: Focused on reliability improvements and policy alignment for OpenTransportData.swiss. Delivered two targeted changes with clear business impact and maintainable configuration-driven design.

November 2024

1 Commits • 1 Features

Nov 1, 2024

In 2024-11, delivered a new data spider and OpenStreetMap tagging pipeline for OpenTransportData.swiss within alltheplaces/alltheplaces, expanding coverage of public transport infrastructure. The spider extracts stations, platforms, and wheelchair accessibility and feeds into an OSM tag generator to produce standards-compliant tags for public-transport features. The work enables richer map data, improved search and routing insights, and better accessibility analytics for downstream users.

Activity

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Quality Metrics

Correctness95.0%
Maintainability93.8%
Architecture93.8%
Performance90.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

CMakeGoHTMLPython

Technical Skills

API IntegrationCMakeCode MaintenanceCoordinate TransformationData EngineeringData EnrichmentData ExtractionData ParsingFront End DevelopmentGeoJSON ProcessingOpenStreetMap TaggingPythonPython programmingSPARQLScrapy

Repositories Contributed To

3 repos

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

alltheplaces/alltheplaces

Nov 2024 May 2026
7 Months active

Languages Used

PythonHTML

Technical Skills

Data ExtractionOpenStreetMap TaggingPythonScrapyWeb ScrapingData Engineering

containers/buildah

May 2025 May 2025
1 Month active

Languages Used

Go

Technical Skills

Code Maintenance

capnproto/capnproto

Jul 2025 Jul 2025
1 Month active

Languages Used

CMake

Technical Skills

CMakebuild system configuration