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With a Subsidiary Protection from Romania you are not allowed to come for working to Germany. You can only come to Germany for working in this country, if you have an EU Permanent Residence Permit, which in Romanian it is called rezident pe termen lung - CE. Or if you get the nationality of Romanian, you can also come for working to Germany. With your current protection, you must have a residence permit and a passport (your national passport/any other passport Romanian may provide to you), so that you can get a visa and come to Germany.
For getting a visa of Germany, you can refer to the German embassy in Romanian. With a visa from that country, while having this type of protection, you are only allowed to stay in Germany up to 90 days, but you are not allowed to work in this country.
I hope, you have got your answer. I am a MBEON consultant. If you wish to contact me directly, you can see my profile and follow the instructions there.