Expert insights on Kubernetes, AWS, CI/CD, and cloud infrastructure from David M - DevOps Engineer at Finstein
Latest posts from July 21, 2025
Back to PortfolioLearn what DevOps really means from scratch. Complete beginner's guide to DevOps culture, principles, and practices. Perfect for anyone starting their DevOps journey. Part 1 of 12 in our comprehensive DevOps learning series.
Read Full ArticleMaster embeddings and vector databases for RAG systems. Complete guide to embedding models, vector search, and database optimization. Perfect for AI developers and data scientists building production-ready retrieval systems.
Read Full ArticleDiscover how Large Language Models work, from GPT to ChatGPT. Complete beginner's guide to LLM architecture, training, and real-world applications. Learn the transformer revolution, attention mechanisms, and how to get started with LLMs today.
Read Full ArticleLearn RAG (Retrieval-Augmented Generation) from scratch. Complete beginner's guide with clean architecture, examples, and practical implementation tips. Perfect for AI newcomers wanting to understand how to make AI smarter with external knowledge.
Read Full ArticleMaster Nginx static serving vs backend static modules. Learn when to use Nginx reverse proxy vs Express.static, FastAPI static files, and Nest.js serve-static for optimal performance. Expert insights by David M, DevOps Engineer.
Read Full ArticleDiscover why Angular remains a top choice for enterprise development in 2025. Follow Sarah's journey from beginner to expert as she masters Angular and NestJS, featuring comprehensive coverage of architecture, performance optimization, testing, and AI integration.
Read Full ArticleMaster Cloudflare's AI crawler blocking with our comprehensive guide. Learn to block GPTBot, ChatGPT-User, and other AI crawlers while maintaining SEO. Expert insights by David M, DevOps Engineer.
Read Full ArticleLearn FastAPI in 15 minutes! This beginner-friendly guide covers the basics of FastAPI, including how to create a simple API, handle requests, and deploy it to production.
Read Full ArticleMaster fixtures in automation testing with comprehensive examples from Playwright, Cypress, and Appium with WebDriverIO. Learn best practices for E2E, unit, and integration testing scenarios with real-world implementation patterns.
Read Full ArticleComplete guide to TypeScript testing with Cypress and Playwright. Perfect for Java developers expanding their toolkit and Angular/React developers starting their testing journey. Includes hands-on examples for unit tests, E2E tests, and component testing.
Read Full ArticleLearn SSH from zero to enterprise level! This beginner-friendly guide explains SSH as a secure remote control for computers worldwide, covering GitHub integration, server management, and automation - no prior knowledge required.
Read Full ArticleUnderstand the foundation of internet security with simple analogies! Learn how public-private key cryptography works with the magic mailbox concept and hands-on examples you can try yourself.
Read Full ArticleLearn how to scale Kubernetes from development to production, managing multiple clusters with advanced networking, security, and monitoring. Real-world insights from enterprise implementation.
Read Full ArticleDetailed case study on AWS cost optimization strategies implemented at Finstein. From right-sizing instances to implementing automated scaling, discover actionable techniques that delivered real savings.
Read Full ArticleComplete guide to implementing enterprise-grade observability platforms. Learn how Finstein built comprehensive monitoring with Prometheus, Grafana, and custom alerting for 99.9% uptime.
Read Full ArticleMy technical insights have been featured across leading developer platforms and publications
Get notified when I publish new technical articles and tutorials