After successfuly building a web app, you of course want to deploy it on the server. For those purposes, I have build solid knowledge in linux server administration. Specificaly for web apps, I like working with Nginx as a web server, which allows easy integration of different subdomains and embedding of SSL certificates (works perfectly with Let's Encrypt). Since cloud apps and microservices are almost a standard today, I gathered solid experience in working with docker and docker-compose. I must not forget to mention my secretary git, who does all the version control for my projects (and lot more).
Feel free to contact me or check out other services which my interest you