seeking advanced coder

Hello list,

I’m seeking a coder, freelancer or casually, with experience in internet backend engineering

I like to implement a DB with realtime tags over users

https://www.alibabacloud.com/blog/tagging-trillions-of-users-in-milliseconds-with-varbitx-on-postgresql_594370?spm=a2c65.11461447.0.0.636f4146DYX8gr

https://alibaba-cloud.medium.com/tagging-trillions-of-users-in-milliseconds-with-varbitx-on-postgresql-1109c372d892

https://www.alibabacloud.com/blog/optimizing-real-time-tagging-on-postgresql_594689

possibly with knowledge with citus and zombo

and possibly located in EU

thank you

kind regards