Greetings. I can help you with GPS tracking software written in PHP and JAVA.
My main specialization is LAMP stack of technologies (Linux, Apache, MySQL, PHP) but also I have experience with Python, Node.js and .NET stack of technologies too. I have a deep experience with different PHP Frameworks such as Zend Framework, Symfony, Laravel, Yii, CodeIgniter, CakePHP as well as different open source solutions e.g. Magento Ecommerce platform, WordPress, Drupal, etc.
Please, send me a list of requirements!