POSOCO Careers Recruitment: Power System Operation Corporation Ltd (POSCO). It releases many notifications which can be applied through the official website www.posoco.in. Eligible candidates can apply for the concerned active posts. At present No Active Posts and you can see previous 21 Executive Trainee (HR), ASST. Officer Trainee (PR) and ASST. Officer Trainee (Rajbhasha) vacancies are available.