https://randhana.com/blog Thoughtful work. Real impact. en-us pulathisi.kariyawasam@gmail.com (Pulathisi Kariyawasam) pulathisi.kariyawasam@gmail.com (Pulathisi Kariyawasam) Sat, 27 Dec 2025 00:00:00 GMT https://randhana.com/blog/production-grade-secure-authentication-api https://randhana.com/blog/production-grade-secure-authentication-api Technical showcase of a production-ready authentication API featuring JWT with refresh token rotation, RBAC, Redis rate limiting, comprehensive security headers, audit logging, and automated CI/CD deployment. Sat, 27 Dec 2025 00:00:00 GMT pulathisi.kariyawasam@gmail.com (Pulathisi Kariyawasam) nodejstypescriptsecurityauthenticationjwtdockerredispostgresqldevops https://randhana.com/blog/the-board-fixed-deposit-rate-tracker https://randhana.com/blog/the-board-fixed-deposit-rate-tracker How I built The Board - a site that tracks fixed deposit rates across every bank and finance company in Sri Lanka, backed by a scraping pipeline, a FastAPI read API, and an admin panel for managing it all - with AI-assisted development. Sun, 06 Sep 2026 00:00:00 GMT pulathisi.kariyawasam@gmail.com (Pulathisi Kariyawasam) nextjsfastapipostgresqlpythonweb-scrapingai-assisted-codingfintech