Essay on tenant isolation, auth boundaries, audit logging, and operational controls for production SaaS—not a project showcase.
What to prioritize when production systems fail: triage, service restoration, database integrity, communication, and post-incident hardening.
Core Linux administration practices that improve uptime, simplify troubleshooting, and support secure backend deployments.
How to harden APIs, protect sessions, validate inputs, manage secrets, and reduce common attack surfaces in backend systems.
Operational lessons from deploying and maintaining AWS-based systems with EC2, Lambda, Cognito, SNS, S3, Redis, and Cloudflare.
Design considerations for OTP flows, session security, identity providers, access control, and user lifecycle management.
