Data parsing and verification in a network environment

Systems and methods are provided for parsing, verifying, and supplementing user-submitted data and pre-populating the information detected in the user-submitted data into a user-fillable electronic form. For example, the user may upload a cumulative vitae (CV) onto a system, and the system may analyze the CV to extract the date ranges and the corresponding entities enumerated in the CV. The system may confirm the information about the extracted entities in a database of entities, and pre-populate an electronic form using the confirmed information. Upon viewing the electronic form, the user may make any changes as needed before submitting the electronic form. Based on the changes made by the user, the system can update its data parsing and/or verification techniques using machine learning.