Advanced Process Control DCS Systems Analyst Sr. The Advanced Process Control (APC) DCS Systems Analyst Sr. will work closely with existing APC team members, and the Operations and Technical departments to support the refinery's control system DCS infrastructure and Process Control Network (PCN). The successful candidate will provide network architecture support for new capital projects, install/maintain/troubleshoot DCS and PCN systems and hardware, proactively monitor/prevent/recover from PCN