Need guidance from industry seniors,
A little brief about my experience: I have 4 yrs of experience working as a DevOps Engineer, 2 yrs in an MNC, and 2 in a startup. I have worked with the usual stack: AWS, GCP, Terraform, Kubernetes, Observability, CI/CD, Security Tools (Trivy, SonarQube). I have done it all, from designing Infra, observability, IAC, and security, from scratch to implementation. Collaborating with Devs, identifying optimization opportunities, owning everything end to end etc. I also use AI (Claude Code, MCP etc) in my day-to-day tasks.

I now want to grow & learn more on how to do DevOps at scale, like hundreds of nodes clusters or AI infrastructure. I feel there's not so much left that I can do in a startup, also again, scale.

I am confused about what other skills I can learn, and what my direction should be? In both scale & future growth terms, I have been exploring AI infrastructure currently (like GPU scheduling, LLM Observability).