Professional web programmer/ wordpress and joomla platforms

I am looking for a all round professional web programmer. Looking for someone who understands Wordpress and joomla platforms. Also knowledgeable in basic coding to implement basic to intermediate web functions.

Will be in charge of:
- Updating Joomla/Wordpress sites regularly
- Implement minor coding to suit requested functions e.g. (SMS text message authentication on landing page)
- Updating sitemaps in google analytics to reflect changes of new webpages
- Solve issues in a timely manner
- Implement changes to e-commerce and or shopping cart and have knowledge of payment systems.
- Website backups and disaster recovery.

Will be requested to work within the Australian timezone of GMT + 10/11. This is an ongoing job and previous/current contractor earns over $2000 USD per year.

This is an ongoing job and person will be required to complete work regularly. Communication is key and important. You need to have a good online presence, or maintain communication easily through Instant messaging or mobile messaging platforms. You will require good english skills for this job.