GPS Robot Development with Arduino

I need a skilled developer to program a GPS robot using Arduino that will operate outdoors on land and potentially in water.

Key Requirements:
- Navigation: The robot should be able to autonomously navigate its surroundings. The robot will be able to follow a line defined by easting and northing (x and y values) and offsets from the line. It will be able to move up and down the line stopping at a user defined interval (in meters).
- Data Collection: The robot should be able to collect height data (z value) from its surroundings using RTK GPS module
- Obstacle Avoidance: The robot should be equipped with ultrasonic sensors to detect and avoid obstacles.

Additional Information:
- The robot will be used primarily outdoors on land, with the possibility of use in water at a later date.
- The robot should be capable of integrating GPS data into its navigation system.
- Programming should be done using Arduino.

Ideal Skills:
- Proficiency in Arduino programming
- Experience with GPS integration
- Knowledge of outdoor robotics
- Familiarity with ultrasonic sensors and obstacle avoidance algorithms.

If you have experience in outdoor robotics and are comfortable working with Arduino for GPS integration, please get in touch.