[5] After assisting the UN Department of Technical Cooperation for Development in New York and a traineeship at the Supreme Provincial Court of Appeal in Koblenz, he finished his second Staatsexamen in 1994 and started to work as a lawyer.

[1] Voss has been the rapporteur or shadow rapporteur for the center-right European People's Party group (EPP) on the General Data Protection Regulation (GDPR), Passenger Name Record (PNR), Eurojust regulation, EU-US Privacy Shield, Digital Content Directive, reform of the EU copyright law, ePrivacy Regulation, the European Parliament's legislative own-initiative report on a civil liability regime for Artificial Intelligence and the special report of the AIDA-committee.

As rapporteur, Voss was an avid supporter of Article 13 of the European Directive on Copyright in the Digital Single Market, saying that "this directive is an important step towards correcting a situation which has allowed a few companies to earn huge sums of money without properly remunerating the thousands of creatives and journalists whose work they depend on.

"[13] Since the GDPR was adopted in 2016, Voss repeatedly criticized the vast number of derogations, the inconsistent interpretation of the law among Member States and the missing exemptions for small and medium-sized enterprises, organizations, clubs and societies as well as private users.

[15] Using similar arguments, he also rejects the proposal for a new ePrivacy regulation, especially since it would partially replace the GDPR provisions as lex specialis.