Mobile App Improvements and New Flight Log Features

We are looking for a mobile developer to improve an existing aviation application called LogFlight PRO, designed for pilots to manage their flight activity and digital logbook. The application already has the main functionality implemented. The goal is to improve several existing modules and complete a new release. Main tasks: Improve the flight logging workflow and flight entry form Add better validation for flight time, airports, aircraft and pilot data Improve offline data storage and synchronization Add flight statistics and summary information for pilots Improve PDF/CSV logbook export Improve search and filtering of previous flights Fix existing UI/UX issues and several minor bugs Improve performance and loading speed on larger logbooks Check Android/iOS compatibility Perform final testing and prepare a stable build This is an existing project, not development from scratch. The developer should be comfortable working with an existing codebase, debugging existing functionality and implementing improvements without breaking current features. Please briefly describe your experience with mobile applications and existing-codebase projects. Screening question 1 Have you previously worked on an existing mobile application rather than building an application from scratch? Screening question 2 Are you comfortable debugging existing functionality and implementing several related improvements in the same project?