Unless you have a special niche field of work that you are trained and have an impressive resume, then you are basically looking for part-time work. Most engineering companies do not like people who are here today, gone tomorrow.
I tried to do that as former Public Works Director. I has lots of friends in the same field - and City Engineering Departments are always needing help. But hiring someone to pick up the overload work just did not fit into any organization chart -so after a year I gave up pounding the pavement looking for work. Square peg in a round hole issue.
I did engineering calcs for architects who had a complicated projects. That worked until I decided the work was boring (it is, I never liked structural).
Companies that do work in undeveloped countries will hire people to work a one or two year contract in some foreign country. That really good money but you work full-time during the contract period. I've met men who lived their whole life jumping from one contract job after then next - they retire early in luxury in some south sea island with a young wife.
If you want to work in your home town or same general area, I fairly certain it will be constant searching for work, and at low pay when you get a job.