Indian Oil Corporation Limited IOCL Jobs Recruitment 2020. Indian Oil Corporation Limited (IOCL), Refineries Division has announced notification for the recruitment of Junior Engineering Asst-IV, Jr Technical Asst-IV , Junior Quality Control Analyst-IV Vacancies. Post Name : IOCL Junior Engineering Asst-IV/ Jr Technical Asst-IV & Junior Quality Control Analyst-IV Vacancies. Total Posts : 57 Educational