According to Green (2013), successful writing is a result of careful planning. Successful writers are capable of using effective writing strategies and transferring these strategies to write academic texts in their content areas. Skills in academic writing are used way beyond the ESL writing classrooms. Students from institutions of higher learning use academic writing to submit assignments. The knowledge (or lack of) academic writing strategies will facilitate (or hinder) their assignment writing. This study looks into the writing process of Diploma Engineering students. Using the Flower and Hayes writing process model (1981) as the basis of study, this quantitative study describes the strategies ESL writers use when they write their written assignments. Results of this study will have useful implications towards the teaching of academic writing in the future.