- S1 Petroleum / Mechanical engineering- Min Experience 10 Year- Have experience in design validation OCTG, Liner Hanger, & Completion equipment, or- Have experience in OCTG, Liner Hanger, & Completion equipment material processing (casting/forging,/bars) or- Have experience in OCTG, Liner Hanger, & Completion equipment manufacturing process (Machining/assembly/welding/NDT/heat treatment) or- Have experience in OCTG, Liner Hanger, & Completion equipment testing process (chemical & corrosion testing/heat treatment/electromagnetic testing/coating)- Familiar with international standard API Q1, API 5CT, 19 LH, DS-1, ISO 9001