An incomplete list of tech that I've worked with professionally and few that I learned out of curiosity. Most of them link to relevant proof of work publicly.
→ Clean Arch / Hexagonal Arch / Onion Arch -
→ Functional Programming
→ Greenfield and Brownfield Migration
→ Version Management
→ Internet Security and Basics
→ Horizontal / Vertical Scaling
Note: I might have completed the progit book a few times
Note: I don't have a preferred frontend library, I've worked with most of them that exist but I've spent a lot more time working with (p)react and Angular than the others.
→ React Native - Projects
Note: Common procedures like Scaling, Clusters, Master-Slave Database / Read Replicas, Sharding,etc have been not added to the list since I can't put a number on them, each of these depend on the overall system and use case, and cannot be generalised; in my opinion
→ Postgres/MySQL - Primary Choice
→ SQL Server / MSSQL
→ Gitlab Runners / Github Actions / Earthly
Note: Haven't specifically specialized in AWS with a certification but have worked with it enough to know my way around.
Note: I've also worked with Railway, Digital Ocean and GCP but not as frequently, hence they haven't been mentioned in the list about