Finishing several jobs on wordpress site

I need a good php , mysql , javascript dev. Who can help us finishing the job.
This is open for new freelancers also.
I pay per task .
We have a corn job, optimizing a search form and a result page with special functions that need to be finished asap.
1. cron job to activate product features
2. Fixing routing google maps) on result page
3. fixing calculation on result map
4. addin extra page option on result page.

Budget is around 200