yes
personnel means person. therefore a field personnel is a person who works on the job.
The government does public works
Government is the institution through which society makes and enforces its public policies. It is the agency through which the state exerts its will and works to accomplish its goals. Government consists of the machinery and the personnel by which the state is ruled.
It is linked to public works because public works are the works of building such as roads and schools, so a strong government will help the public works do what has to be done. (I don't know if this is correct but that is what I think it is.)
See: Anti-Personnel land mines.
Najibullah Aoudjan is the Minister of Public Works for Afghanistan.
Abdelkader Kadi is the Minister of Public Works for Algeria.
Trevor Moniz is the Minister of Public Works for Bermuda.
Alberto Undurraga is the Minister of Public Works for Chile.
Abraha Asfaha is the Minister of Public Works for Eritrea.
Djoko Kirmanto is the Minister of Public Works for Indonesia.
Antoinette Weeks is the Minister of Public Works for Liberia.