Applying GC, eligibility in EB2 with same employer experience


I have 11 years of experience(4.5 in India + 6.5 in US) in one company and this is my first company after engineering. My company has decided to process GC. Am I eligible for EB2?. In the job description,If it is mentioned that Engineering+5 years is required for the job then will I be eligible for EB2. I understand that GC is for a new job, will mentioning 5+ years as a requirement in job description be a problem during PERM processing(EB2 or EB3) as I have no experience prior to this employer. Or an experience letter from the same employer be suffice for PERM? appreciate your inputs.