Sérgio Pantoja is a CELT-P and CELT-S tutor, teacher, teacher trainer and Cambridge speaking examiner (Main Suite and YLE). He has been been in ELT since 2002 and holds, among others, the Cambridge English: Proficiency, a degree in Languages, a postgraduate degree in English Language Teaching and Translation, a TESOL Certificate from the University of Oregon, and the Delta. His Delta Module 3 Specialism focused on LDT (Language Development for Teachers). Sérgio is also part of the BRAZ-TESOL advisory council and has presented at many teaching conferences.