Backend securing

I am looking for a freelancer to help me secure the backend of my project. I need someone with experience in security measures to help me implement data encryption, API authentication, and security logging. In addition, I need someone who is familiar with setting up access to external services as part of the security measures, and who can provide me with auditing to ensure that the data remains secure. If you feel that you meet these requirements and feel confident in establishing the necessary security layers to protect my project, I invite you to submit your proposal.

Knowledgebase:
*Bcrypt
*DDG or onion
*JWK (JSON web key) and the “kid” (Key ID) for MFA
*Single failure msg
*Password hashing