CodeIgniter Site Maintenance

I'm seeking an experienced PHP developer to maintain my existing CodeIgniter website. The tasks will include:

- Bug fixes: Identify and resolve existing issues.
- Feature updates: Implement new features as needed.
- Security enhancements: Strengthen site security to prevent vulnerabilities.

Ideal skills and experience:

- Proficiency in PHP and CodeIgniter.
- Strong debugging and problem-solving skills.
- Experience with website security protocols.

Please provide examples of similar work done.