Cristian Sandu writing https://cristiansandu.pages.dev Senior full-stack engineer based in Chisinau, Moldova. I work on React micro-frontend architecture, design systems built on Tailwind and Radix UI, and serverless backends on AWS Lambda and Step Functions — mostly in fintech. What I like about end-to-end engineering in fintech https://cristiansandu.pages.dev/writing/end-to-end-engineering-in-fintech/ https://cristiansandu.pages.dev/writing/end-to-end-engineering-in-fintech/ Sun, 10 May 2026 00:00:00 GMT A personal note on building interfaces, services, and workflows in finance-focused products. Micro-frontends: lessons I keep in mind https://cristiansandu.pages.dev/writing/micro-frontends-lessons/ https://cristiansandu.pages.dev/writing/micro-frontends-lessons/ Sun, 10 May 2026 00:00:00 GMT Micro-frontends can help teams move independently, but only when the boundaries are chosen carefully. Why frontend performance matters https://cristiansandu.pages.dev/writing/why-frontend-performance-matters/ https://cristiansandu.pages.dev/writing/why-frontend-performance-matters/ Sun, 10 May 2026 00:00:00 GMT A short note on why fast interfaces are not just technical wins, but product wins.