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Johannes Andersen

PROFILE

Johannes Andersen

Over a two-month period, Jotoffen enhanced data extraction and authentication reliability across multiple repositories. For bluesky-social/atproto, he improved OAuth authentication by making hCaptcha error codes and hostnames nullable, addressing edge cases where partial data could cause validation failures and increasing system resilience. In alltheplaces/alltheplaces, he developed new Scrapy spiders in Python to expand store scraping for Telenor and Pizzabakeren in Norway, while also fixing the Denmark spider for Telenor, improving data coverage and accuracy. Additionally, he corrected a Wikidata reference in osmlab/name-suggestion-index, demonstrating careful attention to data integrity and robust backend development practices.

Overall Statistics

Feature vs Bugs

50%Features

Repository Contributions

4Total
Bugs
2
Commits
4
Features
2
Lines of code
195
Activity Months2

Work History

January 2026

3 Commits • 2 Features

Jan 1, 2026

Month: 2026-01. Concise monthly summary focusing on business value and technical achievements from the development team. Delivered cross-country store scraping enhancements and a data accuracy fix across two repositories, driving broader market coverage, improved data quality, and operational efficiency. Key outcomes include new Norway spiders for Telenor and Pizzabakeren, a Denmark spider fix for Telenor, and a Wikidata reference correction for Power in Electronics data.

March 2025

1 Commits

Mar 1, 2025

March 2025 monthly summary for bluesky-social/atproto focusing on stability and robustness of authentication flows. Delivered a critical bug fix to hCaptcha verification by making error codes and hostname nullable, preventing validation failures when partial data is returned and improving OAuth reliability. Added a changeset documenting the patch to ensure traceability and deployment hygiene. No new features released this month for atproto; the primary value came from improving resilience and maintainability, reducing potential production issues and support overhead.

Activity

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Quality Metrics

Correctness90.0%
Maintainability90.0%
Architecture85.0%
Performance90.0%
AI Usage25.0%

Skills & Technologies

Programming Languages

JSONPythonTypeScript

Technical Skills

API IntegrationAPI integrationBackend DevelopmentJSON manipulationPythonScrapyasynchronous programmingdata extractiondata managementdata parsingweb scraping

Repositories Contributed To

3 repos

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

alltheplaces/alltheplaces

Jan 2026 Jan 2026
1 Month active

Languages Used

Python

Technical Skills

API integrationPythonScrapyasynchronous programmingdata extractiondata parsing

bluesky-social/atproto

Mar 2025 Mar 2025
1 Month active

Languages Used

TypeScript

Technical Skills

API IntegrationBackend Development

osmlab/name-suggestion-index

Jan 2026 Jan 2026
1 Month active

Languages Used

JSON

Technical Skills

JSON manipulationdata management