Position: Senior DevOps Engineer
Category: DevOps
English level: intermediate
Years of experience: 11

1) doubled the performance of the ElasticSearch cluster, several hundred terabytes in size, e.g. by optimizing the GC out of docs. It's not a classic ELK for logs, all data is hot and time-based indices are not used.
2)  one of my team members, under my leadership, has grown from junior to senior level and he is already capable of servicing the product by himself.
3) improved distribution of data across the servers of the Cassandra database cluster several TB's in size.
4) configured MySQL InnoDB Cluster with MySQL Router and ProxySQL and created an Ansible script that allows to deploy a fully working cluster with all dependencies and update its configurations without downtime.
5) implemented an automatic mechanism of setting up an easily scalable dev environment. As a result, in a year we set up Kubernetes on bare metal servers, 90% of the product was covered with docker, and now each team member has his own isolated dev environment with fully working functionality, same as in production.
Current role - a lead of DevOps team. 
My main task was to stabilize the product. It is hosted on several hundred bare metal servers and does not use cloud solutions.

For several years, managed to stabilize the product and make it fault-tolerant within one region, reaching SLI from 85-90 to 99%.

Besides that, had years of commercial experience with the following cloud service providers: AWS, GCP, IBM Cloud, Azure.
preferable remote position
salary has more priority than label/position