Both the job profiles have the different roles and responsibilities. Few of them are described specifically as below –

Responsibilities of Site Engineer –

• calculates the quantity of shuttering, steel bars etc.
• also instructs the supervisor to check the alignment of shuttering
• checking the quality of material
• however gives instruction to the supervisor regarding the placement of bars in structural member
• provides instruction to the supervisor therefore they get to know how to allocate the manpower to get maximum productivity
• also keeps the record of number of labours working and working timings of each and every labour
• thus resolving technical issues
• similarly, tracking up the material wastage
• however takes care of quality control
• also measurement and valuation
• preparing record drawings, site diary and technical reports
• liaising with the project planning engineer
• liaising with company or project purchasing department
• Supervising and counseling junior
• Job review of subordinate staff
• reporting and billing

Responsibilities of Supervisor –

• make sure the carpenter is on the job to provide the required quantity of shuttering
• however oversee delivery of material
• checks whether the alignment is fine
• looks after the bar bender is on the job to provide the required quantity of work
• Therefore oversee the operations
• make sure that the steel bars are placed as per the instruction of site engineer
• monitoring the work progress
• also takes care the manpower is allocated at right location as per the instruction of site engineer
• also study the drawing and execute the work
• keep in close contact with the members of site team

To conclude, we may say that

• Site Engineer is superior to Supervisor
• Site Engineer keeps Supervisor as their assistant. Also we can say that Supervisor assists the Site Engineer
• Supervisor work as per the instructions provided by the Site Engineer

After few years experience, a Supervisor can become Site Engineer.