I do a lot as a software and hardware development. Created applications for Desktop (Windows), Mobile(Android), and Web. The other stuff are for fun like Scripting and Arduino or RaspberryPI.
As a freelancer I follow the standard of software developing like working in a team development method to easily manage code changes/reverts, collaborate and ease of releasing partial working application.
Documenting tasks to instantly give the outcome report for the partial releases has done for the client in daily/weekly/monthly basis and deliver the product as what is expected.
The program languages that I use are PHP, C++, Java, VB.NET, JavaScript, HTML, CSS, and AutoIT. Web development frameworks I use are Laravel, CodeIgniter, React, React Native, and NodeJS.
The API's that I are already implemented are Globe Labs Messaging, Google Maps API(Web & Mobile), Lumen Micro-service and OAuth API(e.g. Facebook, Instagram, Twitter and etc.). Able to implement REST-API or GraphQL API.