Over the years I've been developing I've worked with a lot of tools and libraries. This is a fairly reasonable although incomplete list. Been strongly focused on Drupal for the last 10 years so almost everything is centered around that. Like most SSO providers provide multiple methods, but I have used PHP or JavaScript based authentication on my side. 

APIs

Most definitely an incomplete list but some that I have integrated/worked with include

Data push/pull

  • Github
  • Neon
  • Nimble
  • Salesforce
  • Sharepoint
  • Teams
  • Various one-off proprietary APIs

JavaScript APIs

  • Google Analytics (by various names)
  • Google Maps
  • Leaflet
  • Mapbox
  • Matomo
  • Stripe

SSO

  • Azure
  • Facebook
  • Neon
  • Nimble
  • Salesforce
  • Sharepoint
  • Twitter/X
  • Various one-off proprietary SSOs

Hosting

  • Acquia
  • Amazee
  • Apache
  • AWS
  • Azure
  • Nginx
  • Pantheon

JavaScript Libraries

  • CKEditor
  • jQuery
  • Many others

Languages

Not all that I've used but the ones that I have expertise in.

  • Bash
  • CSS (including SASS/SCSS)
  • HTML
  • JavaScript
  • MySQL
  • MSSQL
  • PHP
  • Python
  • YAML

Ops/Server Maintenance

  • Apache
  • Amazon Linux
  • CircleCI
  • Composer
  • CentOS
  • Github Actions
  • Gitlab
  • Jenkins
  • MariaDB/MySQL
  • RHEL
  • SOLR including Tika
  • Ubuntu

Software/Tools

  • Adobe Photoshop
  • Adobe XD
  • CVS
  • Discord
  • Docker
  • Drush
  • Git
  • HG
  • Jira
  • Lando
  • Slack
  • Sharepoint
  • SVN
  • Teams
  • Teamwork
  • Zoom