External API Application

We are a construction company based in the UK, we use a job management system called ServiceM8, please carry out your own research on this application as you will need to have knowledge of this to facilitate our requirements. We are currently looking for a Developer to help develop an external application which would allow us to retrieve information from jobs booked in on the Dispatch Board on ServiceM8 and generate a Gantt Chart, this Gantt Chart needs to update in Real-Time as jobs are booked on the system. The aim of this Gantt Chart would need to allow us to generate a PDF for induvial jobs known as a 'Programme of Works' allowing the client to see a schedule of what Trades/Works have been scheduled in for their job, on top of this we require a Real-Time report of how many days work we have for different Trades, for example if a Plumber is booked in for a total of 10 jobs spread across multiple months, we would like to be able to see how many days work we have available for that Trade i.e. Plumber, Joiner, Electrician.

Usual Links:
https://www.servicem8.com/uk/
https://developer.servicem8.com/

I am available for a call to discuss this further if you require further information.