Detect a particular and meaningful piece of text in a paragraph (No Copy-Paste Bids)

Looking for an expert backend developer We have a huge database with job descriptions. We want to take 1000 samples (job descriptions) and extract the salary (some jobs do not have any salary, others have something similar but is not a salary is a bonus or whatever). This script should run and detect such data. Additionally, you must create a list of the results. Every row should show a piece of the paragraph where the salary (or assumed salary) is located, this part of the list is located at the left of the screen. At the right it must show a checkbox, The purpose of this checkbox is let a a human check if the data extracted is accurate or not. There must be a button. When you press the button, you get a report telling how accurate is the script. So let's say we have 1000 job descriptions and the algorithm detects 800 salaries and 200 no salaries when you run it at the first time. When a human audits lets say 100 rows and press the button the final result should be changed to whatever it happens to be. This report should tell you How many accurate salaries, and how many inaccurate salaries are on the list. You can filter the bad ones and change the script to improve it and reduce errors in the next run. Please add your approach in your proposal.