Ask HN: Jobs for Elasticsearch?

Are there any dedicated websites listing ElasticSearch jobs?

I have few friends that I think they are good at ElasticSearch. However, they have trouble finding a (good) job in ElasticSearch. One of them is located in London, UK and the other is remote in EMEA.

I am asking because, for example for Vue.js there is https://vuejobs.com and for Rust there is https://rustjobs.dev . However I couldn't find any such website for ElasticSearch jobs.

Thank you in advance!