
Oskar Kiselman developed and enhanced backend infrastructure for the Klimatbyran/garbo repository over two months, focusing on containerized deployment, API improvements, and data integration. He introduced a docker-compose-based stack for PostgreSQL, Redis, and ChromaDB, streamlining onboarding and operational reliability. Oskar extended the Company List API to expose tag metadata, enabling richer client-side filtering. He implemented end-to-end Wikipedia integration with automated publishing via worker services, and added GitHub OAuth authentication for third-party login. Using TypeScript, Node.js, and Docker, he addressed deployment issues, improved emissions data accuracy, and strengthened error handling, demonstrating depth in backend development and DevOps practices.

March 2025 summary: Delivered end-to-end Wikipedia integration with API utilities, article text generation, emission data formatting, and an automated publish workflow with a dedicated worker; introduced read of fiscal year from pipeline and backend improvements in the Emissions Editor. Added GitHub OAuth authentication endpoint with client ID/redirect wiring to enable third-party login. Fixed Kubernetes deployment issues by adding missing environment variables (API_SECRET, WIKI_PASSWORD, WIKI_USERNAME) across API and worker. Corrected emissions calculations to properly sum scope 1-3 and addressed a syntax error affecting scope 3 updates. Enhanced emissions editor backend with robust error handling for non-existent Wikipedia pages and emissions. This work reduces manual publishing effort, improves data accuracy, and strengthens deployment reliability and onboarding for external collaborators.
March 2025 summary: Delivered end-to-end Wikipedia integration with API utilities, article text generation, emission data formatting, and an automated publish workflow with a dedicated worker; introduced read of fiscal year from pipeline and backend improvements in the Emissions Editor. Added GitHub OAuth authentication endpoint with client ID/redirect wiring to enable third-party login. Fixed Kubernetes deployment issues by adding missing environment variables (API_SECRET, WIKI_PASSWORD, WIKI_USERNAME) across API and worker. Corrected emissions calculations to properly sum scope 1-3 and addressed a syntax error affecting scope 3 updates. Enhanced emissions editor backend with robust error handling for non-existent Wikipedia pages and emissions. This work reduces manual publishing effort, improves data accuracy, and strengthens deployment reliability and onboarding for external collaborators.
February 2025: Delivered containerized backend deployment and API enhancements for Klimatbyran/garbo, focusing on faster onboarding, improved data exposure, and stronger operational reliability. Implemented a docker-compose-based stack for PostgreSQL, Redis, ChromaDB, and a custom ingestor, with a single-command startup and updated documentation. Also extended the Company List API to expose tag information, enabling richer metadata and improved client-side filtering.
February 2025: Delivered containerized backend deployment and API enhancements for Klimatbyran/garbo, focusing on faster onboarding, improved data exposure, and stronger operational reliability. Implemented a docker-compose-based stack for PostgreSQL, Redis, ChromaDB, and a custom ingestor, with a single-command startup and updated documentation. Also extended the Company List API to expose tag information, enabling richer metadata and improved client-side filtering.
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