Whats the difference between a Jr & Sr cloud engineer?

About $50,000

Here's how you get there

Write Code

No getting away from it, you have to write code, and be comfortable writing code.

Daily I look at

-Go
-Python
-Bash
-JavaScript

I have to deal with linters, debuggers, builds, unit tests, and vulnerability scanning.

Get comfortable with programming!

DevOps

All that code has to go somewhere and be used to do things.

This is called CI/CD (Continuous integration & continuous delivery)

The tools that make that possible?

-Git
-Jenkins
-TravisCI
-CircleCI
-SonarQube

Containers!

Code and applications are all now being deployed as containerized workloads so be proficient in them!

Be comfortable creating & interacting with containers, deploying in cloud or k8s.

Docker - https://www.docker.com/101-tutorial 
Kubernetes & Helm - https://kubernetes.io/docs/tutorials/kubernetes-basics/

Infrastructure as Code & System Orchestration

Everything now is code. Infrastructure is code.

Virtual machines and all the software installed on them is categorized and managed by code.

-Terraform
-CloudFormation
-Ansible
-Chef
-Puppet
-Saltstack

You need to be able to monitor your resources and be informed if something goes down. You need visibility into your resources.

Logs & Metrics need to be retrieved from assets, processed, and made available for human consumption.

-CloudWatch
-Splunk
-Nagios
-Grafana
...

This is just one road from Jr to Sr and your journey may look different than this.

Check out this fantastic roadmap below for a deeper view on all the tools and technology in the space because I couldn't list them all. https://roadmap.sh/devops