Android Developer Needed – Smart Workout Planner App with Progress Tracking

I'm looking for an experienced Android developer to build a Smart Workout Planner app that helps users create personalized workout plans and track their fitness progress over time. Project Overview: The app should allow users to input their fitness goals and generate a tailored workout plan, then track completed sessions and visualize progress through charts and stats. Core Functionality Required: User Onboarding & Goals User registration/login (email + optionally Google Sign-In) Input fitness goals (e.g., weight loss, muscle gain, endurance) Basic profile setup (age, weight, height, fitness level) Workout Plan Generation Generate a workout plan based on user goals and fitness level Pull exercises from a free exercise API (e.g., Wger or ExerciseDB) — including exercise name, instructions, target muscle group, and demo images/GIFs if available Allow users to view daily/weekly workout schedules Workout Tracking Mark exercises/sessions as completed Log sets, reps, and weights used per exercise Rest timer between sets Progress Tracking & Visualization Track progress over time (weight lifted, workout frequency, body measurements if entered) Visual progress charts/graphs (using a library like MPAndroidChart) Weekly/monthly summary of activity Notifications & Reminders Workout reminders using AlarmManager/WorkManager Motivational notifications for missed sessions Data Storage Firebase/Firestore for cloud sync and user data storage (or Room DB if offline-first is preferred — open to discussion) UI/UX Clean, modern, motivating design Dashboard/home screen showing today's workout and quick stats Tech Stack Preference: Kotlin or Java Firebase (Auth + Firestore) MPAndroidChart or similar for graphs Any well-documented free exercise API Deliverables: Fully functional Android app (APK + source code) Clean, commented codebase Basic documentation on setup/API keys used