i need tester and developer

I am in need of a skilled tester and developer capable of performing security testing and web development for an existing system. The ideal candidate should have experience in the following areas:

Skills:
- Security Testing
- Web Development
- Experience with existing systems
- Ability to identify and address system vulnerabilities and weaknesses

Experience:
- Proven track record of successful security testing and web development projects
- Familiarity with existing systems and ability to make improvements
- Strong problem-solving skills and ability to work independently

If you have the skills and experience required for this project, please submit your proposal including your portfolio and relevant experience.