René Bon Ćirić
Principal Cloud Architect | OpenStack, KVM & SRE | RHCE
The phantom socket crisis: Why long-lived background jobs and database connections hang mysteriously across cloud NAT gateways and firewalls.
Every backend engineering team has witnessed this perplexing incident: an application background worker (Celery, Sidekiq, Go worker) or...
The danger of SaaS Git dependency: When a vendor outage, account suspension, or price hike halts your entire engineering lifecycle.
Most modern technology companies anchor their entire software supply chain—source code, CI/CD pipelines, secret management, package registries, and...
The 1450 MTU black hole: Why small HTTP requests succeed while large file transfers and TLS handshakes mysteriously hang and time out.
When migrating compute workloads to private or public clouds (OpenStack, GCP, or nested virtualization), network engineers frequently run into an...
Why most "AI agents" fail in production: The difference between fragile scripts and deterministic engineering harnesses.
Over the past year, engineering teams rushed to integrate autonomous LLM agents into their workflows: automated PR reviewers, code migration scripts, internal...
Why relying on public CAs for internal infrastructure is an operational time bomb: The case for your own private Root and Sub-CA.
How many times has your engineering team been paged at 3:00 AM because an internal TLS certificate expired, taking down database connection pools,...
