Dear Sir or Madam:
I am a programmer with extensive and wide experience in software systems, integrations and the requirements you posted, including samples if you send me PM. Sheet since 2014, MySQL+JS from 2000. Integrations all the time, here and there.
Please, message me for PM,I can pass sample projects videos, also we can chat, usually I can have 1 hour delay, but if you sendx me time and GMT I will be in chat.
Thank you,
Background
Full services: programming, PM, technical translation/writing.
Software architecture and engineering.
Personalized service, full back-end and. front-end programming.
Remote Work
-Online distance working.
-Online collaboration: Dashboard for auditing advance.
-Daily communication automatized workflow.
-Extreme programming, Agile methods.
-It Includes state of the art analysis AND design.