Lotus Script Optimization and Copyright Acquisition

I need a developer with good knowledge of Lotus Script to make changes to existing databases. It is necessary to change the code by 20% in the module to optimize performance. After making the changes, it is necessary to obtain copyright for the updated code... (Budget: $250 - $750 USD, Jobs: Database Development, Database Management, Lotus Notes, Performance Tuning, Programming, Software Architecture, Software Engineering)