Hi,
I've read your attached document and understood all requirement and I am confident that no one can provide you a greater admin interface than me. I will built this admin panel in CakePHP which is a very popular framework today and it will make the project robust and flexible.
I am also very good in API things so there should be no issue between meter and server communication.
I can do it for you at very reasonable price. Here is something about myself:
I am Lalit. With having 12+ years of experience in IT and 8+ years of experience in PHP, MySQL with related things like CSS, jQuery, Ajax, Bootstrap, XML, SOAP, REST, JSON etc. I've worked on many big frameworks/CMS like Symfony, Magento, CakePHP, Wordpress etc.
Apart from this, I am very good in PHP architecture and OOPs. I've worked directly with German clients in my whole PHP development life. Even i've been to Germany and worked directly with clients.
I've worked on many big project successfully. I've 100% customer satisfaction record in development life. I value words of commitment, communication, teamwork, and our client’s satisfaction.
I know you can find many bids lower than me, but better quality work is the things which they can't provide you better than me. And the bid which i have placed is not even very higher according to my work experience and my code quality.
I'll do my best. I need a chance to show you my abilities.
Thanks !
-Lalit