https://oskarwichtowski.com/articles Articles on AI engineering, LLM integrations, serverless architecture, and quality assurance by Oskar Wichtowski. en https://oskarwichtowski.com/blog/testing-ai-services-at-scale https://oskarwichtowski.com/blog/testing-ai-services-at-scale How we built a layered integration testing strategy for a multi-service AI platform using Playwright's API testing, contract-driven test data from S3, evaluation metrics with percentage failure thresholds, and a Friday-to-Monday batched indexing verification workflow. Testing AI Playwright Integration Testing CI/CD Evaluation Metrics Quality Wed, 01 Jul 2026 00:00:00 GMT https://oskarwichtowski.com/blog/serverless-rant https://oskarwichtowski.com/blog/serverless-rant A rant about how 'serverless' still runs on servers - they're just someone else's servers, and you're still paying for them. serverless cloud rant devops marketing Fri, 26 Jun 2026 00:00:00 GMT https://oskarwichtowski.com/blog/serverless-ai-pipeline-indexed-300k-scientific-papers https://oskarwichtowski.com/blog/serverless-ai-pipeline-indexed-300k-scientific-papers How we rebuilt a serverless AI pipeline for indexing 300,000+ scientific papers - with OCR, chunking, figure enrichment, embeddings, retries, and cost-aware re-indexing. AI Cloud Mistral AI OCR Serverless Vector Search Architecture Thu, 25 Jun 2026 00:00:00 GMT