logo for an engineering contractor going by "HJW Engineering".

I'm looking to hire someone to create a logo for my engineering contractor business, "HJW Engineering". I'm looking for something modern and minimalistic, with colors primarily consisting of green, black, grey, and white. I also have specific ideas for imagery or symbols that I'd like to have included in my logo. Specifically, I would like to have the following icons included in the design: Combination spanner, hex nut and bolt, electrical spark. With your design experience and knowledge, I'm sure you could create something that perfectly fits my needs as an engineering contractor.