Senior Control Systems Engineer

We're looking for a Senior Control System Engineer to join our team. You will develop and maintain control system documentation, including P&IDs, control narratives, I/O lists, loop diagrams, and cause-and-effect matrices for a large-scale electrolyzer system. You will work onsite/ hybrid at our San Jose, CA office, or you will work remotely from Houston, TX. You will report to the Director of Software Engineering.

Primary Responsibilities

• Develop and maintain control system documentation, including P&IDs, control narratives, I/O lists, loop diagrams, and cause-and-effect matrices for large-scale electrolyzer systems

• Specify and design instrumentation systems, including preparation of datasheets, wiring schematics, and technical documentation to support procurement, installation, and commissioning

• Collaborate on the design and implementation of PLC and SCADA-based control systems, including I/O definition, logic development, and integration with process equipment

• Support the full safety lifecycle for Safety Instrumented Systems (SIS), including participation in PHA/LOPA reviews, SIL determination, and development of SIF documentation and testing procedures

• Interface with cross-functional engineering teams to ensure instrumentation and controls meet functional requirements, safety standards, and compliance criteria

• Provide field and commissioning support for instrumentation and controls, including startup troubleshooting, loop checks, and system validation

Qualifications

• Bachelor's degree in Mechanical, Chemical, Electrical, or related engineering discipline

• 8+ years of experience in instrumentation and controls engineering for industrial applications such as oil & gas, water treatment, or chemical processing

• Proficient in developing and interpreting instrumentation documentation including P&IDs, loop diagrams, I/O lists, control narratives, and cause-and-effect matrices

• Experience implementing or supporting Safety Instrumented Systems (SIS), including SIL calculations, SIF lifecycle documentation, and participation in PHA/LOPA processes

• Familiarity with PLC and SCADA platforms and industrial control architectures, including I/O and communication protocols

• Knowledge of process instrumentation technologies, valve and transmitter specifications, and experience interfacing with vendors for design and procurement

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