OPAL Recruitment 2015 for 156 Operations and other Vacancies. OPAL Recruitment for 156 Operations, Maintenance & other Vacancies. OPAL has been released a notification for 156 jobs or Vacancies. Interested and eligible candidates may apply online on or before 14th February 2015. Please read the below provided information such as educational qualification, application fees, selection procedure etc. carefully before applying for this job.