Adding couple of functionalities to the existing PHP based POS system

We have developed POS system in-house using Code Ignitor PHP framework I am looking for an experienced PHP developer who can successfully accomplish the following requirements: 1 – Set up dual screen where one screen facing the cashier with the POS / dashboard is displayed and the opposit screen faces the customer on which the item scanned, qty, rate and amount and the final payable amount is displayed on the second screen. See the screenshot [login to view URL] 2 – We need integrate the weighing scale so that items like vegetables purchased by the customer is weighed on the scale and the actual weight is then used for the calculation by displaying in the qty field. *** IMPORTANT *** 1 - ONLY THOSE DEVELOPERS MAY APPLY WHO HAS EXPERIENCE OF AT LEAST 7 YEARS OR ABOVE. 2 - THE SOURCE CODE WILL BE OUR SOLE OWNERSHIP 3 - DEVELOPER SHOULD BE READY TO WORK WITH US VIA ANYDESK -----> *MANDATORY* 4 - DEVELOPER CAN NOT USE TO SHOWCASE OUR SOFTWARE / LAYOUTS / DESIGNS WHETHER PRINT OR DIGITAL AS THEIR OWN PROJECT AND CANNOT INCLUDE IT IN HIS/HER PORTFOLIO 5 - DEADLINE - 2 WEEKS FROM THE START DATE OF THE PROJECT