Develop Invoice Approval Workflow using Oracle APEX 23.1

I am looking for a developer to help me expand an existing invoicing system to develop an Invoice Approval Workflow using Oracle APEX 23.1. The project requirements are as follows:

Approval Process:
- The desired approval process for invoices is sequential approval.
- This project is to extend an existing Oracle APEX application. Would like to utilize the APEX built-in workflow capabilities
-Deadline:
- The implementation of this workflow is urgent and needs to be completed within a week.

Features and Requirements:
- Although there are specific features that I have in mind, I am open to suggestions and improvements to enhance the workflow.

Ideal Skills and Experience:
- Proficiency in Oracle APEX 23.1 is a must.
- Strong knowledge of Oracle Cloud infrastructure (OCI)
- Strong understanding of workflow development and approval processes.
- Experience in designing and implementing sequential approval workflows.
- Ability to collaborate and suggest improvements based on the client's requirements.

If you have the necessary skills and experience and can deliver within the specified timeframe, please submit your proposal.