Need an freelancer who know springboot and Jira who can add feature to existing app

I am looking for a freelancer who has knowledge and experience in Springboot and Jira to add a specific feature to my existing app. The feature I want to add is custom field creation. I have a detailed specification for this feature and I am looking to have it completed within 2 days. I already have done with the UI design just need to work on backend.

Ideal skills and experience:
- Proficiency in Springboot and Jira
- Experience in custom field creation
- Ability to work efficiently and meet tight deadlines