Britta L wrote:
I filled my profile and should post a job. But I am searching for a job. How can I apply for a JOB?
You created a client profile instead of a freelancer profile.
You can be a Client and a Freelancer using the same account. You'll use the same account to log in to Upwork, but the two parts of your account will be kept entirely separate. You'll be able to easily switch between the two as needed. To create a Freelancer account on your existing account, please follow up instructions in this help article.
You will need to fill out your application and submit it for a review, please allow up to 24 hours for the review to be completed.
Please read this Help Article to find out how to Find Work and how to submit proposals for jobs that you find to suit your skills and experience. Also, you may check this thread about Getting Started on Upwork and Hiring Headquarters and find there some excellent articles