Unity Developer Needed for Tower Defense Game

I'm seeking an experienced Unity developer to help finish my partially developed tower defense game and prepare it for early access. The game requires a number of key features to be implemented and levels to be completed and created.

Key Tasks:
- Create and integrate a highscores screen with Steam and Epic leaderboards, controlled by a build flag.
- Incorporate Steam and Epic achievements at pivotal moments in the game.
- Complete the first level, which is about 60% finished, with needed polishing.
- Design and build four additional levels, differing in maps and available towers.
- Implement game save/load functionality.

Ideal skills for this project include:
- Proficiency in Unity and game development.
- Experience with Steam and Epic integration.
- Strong level design abilities.
- Skills in UI/UX design for games.
- Ability to implement save/load systems.

The ability to take on feedback and work collaboratively is essential, as is a passion for tower defense games.

Please visit the game's steam page to get an idea of what has been done.
https://store.steampowered.com/app/3309250/The_Rift_Tower_Defense/