As a developer, my main experience is within the Javascript/Typescript language and ecosystem. However, I have used Lua in the past to build the backend of a custom e-commerce site from scratch. (An early iteration of the code can be seen on my personal Git service at https://git.sakal.us/avraham/piazzaoptical.com ).On the frontend I've worked with ReactJs/NextJs and TailwindCSS at my current job, as well as with the React-Admin library. My tasks in this area have been mostly debugging, besides development.The majority of my tasks are on the backend, which involves all sorts of things. I'm the team "firefighter"; I jump in to do end-to-end debugging. I have experience with writing application code (we have various NodeJS services using various libraries). Our services use MySQL and I have debugged and adjusted queries, and designed normalized table structure for new features.I have plenty of experience with Docker, including writing efficient Dockerfiles. I also setup and configure deployment of these on Kubernetes. Within Kubernetes, I've also setup and deployed third-party services and applications, such as Grafana, Clickhouse, Elasticsearch/Kibana, Temporal, etc.In fact, I migrated our legacy stats tracking (which was a hodgepodge of MySQL and Redis) to Clickhouse, and updated all of our API endpoints to query Clickhouse according to the new (improved!) shape of the data.I've written a standalone service from scratch to direct the IVR service we use. I've moved our code that was on Gitlab over to our organization's Github account; and I also ported the GitlabCI yaml files to GitHub Actions. Besides this, I've also written bash CI scripts for when time is of the essence (Github Actions can take 3-6 minutes, whereas my bash script takes 15 seconds).I also work with Cloudflare, which besides DNS, provides caching. But, I also wrote a Cloudflare Worker script to proxy to a third-party service we use, as some of our users cannot access it directly due to Internet filtering.In short, I have end-to-end experience with all sorts of technologies, and that list is still growing according to my work assignments.