Electrical engineer responsibilities: 
- designing, testing, installing and maintaining large-scale electrical systems that transmit and generate power 
- work with computer models in order to have a better idea of what they should design. 
- calculating the costs of projects and scheduling delivery dates for supplies 
- making sure that all codes are met. 

Mechanical engineer responsibilities: 
- Analyze problems to see how mechanical and thermal devices might help solve the problem 
- Design or redesign mechanical and thermal devices using analysis and computer-aided design 
- Develop and test prototypes of devices they design 
- Analyze the test results and change the design as needed 
- Oversee the manufacturing process for the device