Yes you will be able to find a job in Shenzhen with your qualifications. Most places want you to have at least 2 to 3 years of experience and your 5+ years of experience qualifies you. I have also done logistics, supply and sales and marketing back home. I've done other jobs in China so you shouldn't have much trouble finding a job. Your written and verbal communication skills in English is what most companies are looking for nowadays. Good Luck!

But how much chinese do you know?

Judging from the way you write, your English leaves much to be desired!

Considering I have no idea what you're talking about because your grasp of the language is so slender, I doubt it.