Arduino MQTT Logger

I need an Arduino MQTT logger that will read, process, and send data to an MQTT server. The logger will be recording 4-20mA signal sensor data. The frequency at which the logger will record data will vary, allowing for a variable data rate. Other Peripherials are available as (current consumption, temperature sensor I2C, EEPROM I2C, RTC I2C, I/O Expander I2C mainly). If there is no connection to the internet. Sensor log is stored in eeprom. While back online, send data queue packets.

Arduino UNO + Ethernet Shield 2 + custom board for peripherals --> connected to ethernet to obtain internet (No wifi)

Connect to Hive MQTT Broker online.

Skills and experience required for this project:
- Proficiency in Arduino programming
- Knowledge of MQTT protocol and server integration
- Experience with 4-20mA signal sensors
- Understanding of data processing and analysis
- Familiarity with troubleshooting and debugging techniques
- Fixed Price for project.

Please provide examples of previous projects or relevant experience when bidding on this project.