Well, I am already working as System Engineer in telecommunciation network development firm. Although, I don't do any coding, I am involved in system integration test. I am currently planning to take a certificate for my career advancement. Which is the best for Software/System Engineer career? I am thinking MCSD/MCAD. Could anyone give any good advise, please? Java certificate? CCNA certificate? If you choose MCSD/MCAD, why? Good potential in career advancement? By the way, I am living in Singapore.