WordPress Site Maintenance Expert Needed

I'm looking for a skilled WordPress developer to handle general website maintenance. The tasks include:

- Content updates
- Bug fixes
- Performance optimization

The site requires regular monitoring and updates for:

- Plugins and themes: Ensure all are up-to-date and functioning correctly.
- Security: Implement measures to protect against threats and vulnerabilities.
- SEO: Optimize for better search engine rankings.

Ideal candidates should have:

- Proven experience with WordPress maintenance.
- Strong knowledge of security protocols.
- SEO expertise.

Please provide a portfolio showcasing similar projects.