Senior Electrical SIS Instrumentation Engineer

Job Description

Senior Electrical SIS Instrumentation Engineer 

This is a permanent, full-time, exempt-level position.

Position Description:

ADM is seeking a Senior Electrical SIS Instrumentation Engineer to provide technical leadership for Safety Instrumented Systems (SIS) and critical instrumentation supporting power generation, utilities, and process operations.

This role sits within the Electrical Systems group and supports facilities across North America (with primary focus in Nebraska, Ohio, Iowa, and Illinois).

The position is accountable for ensuring that SIS are designed, maintained, tested, and modified in accordance with the Functional Safety Lifecycle (e.g., IEC 61511 / ISA 84) to achieve required risk reduction while maintaining high availability and reliability.
 
Primary Responsibilities

   Functional Safety & SIS Lifecycle Leadership:

• Own and administer the site and regional SIS Functional Safety Management System, including procedures for proof testing, bypass management, overrides, demand reporting, and documentation control

• Lead and/or facilitate hazard and risk studies (PHA/HAZOP, LOPA, What if) to identify Safety Instrumented Functions and assign/confirm SIL targets; ensure alignment between initiating events, safeguards, and required risk reduction

• Develop and maintain SIS Safety Requirements Specifications (SRS), Cause & Effect matrices, logic narratives, and setpoint documentation for SIFs (ESD, BMS, Fire & Gas, critical interlocks, and trip functions)

• Perform or oversee SIL verification calculations (PFDavg / PFH, proof test intervals, common cause, hardware fault tolerance) and document assumptions, failure data, and test coverage; recommend redesigns where targets are not met

• Plan and coordinate Functional Safety Assessments/Audits (FSA stages as applicable) for new projects and for existing SIS; track findings to closure via MOC / corrective action processes

• Maintain a functional safety competence and training approach for engineers, technicians, and contractors who design, maintain, or test SIS

   Reliability, Maintenance and Performance Management:

• Define and continuously improve SIS and critical instrumentation maintenance strategies, including proof test procedures, calibration standards, and test frequency optimization based on lifecycle reliability and risk

• Ensure all SIS assets (logic solvers, I/O, networks, final elements, sensors) are accurately registered in the CMMS with correct hierarchy, attributes, spares, and preventive maintenance/work instructions

• Monitor SIS performance (spurious trips, demand rates, bypass frequency, proof test compliance, instrument bad-actor lists) and report against established KPIs; drive targeted improvement plans

• Lead root cause investigations for SIS demands, nuisance trips, and instrument failures; implement corrective and preventive actions and update safety requirements specification/proof tests where required

• Partner with Operations, Maintenance, EHS/Process Safety, and IT to ensure SIS cybersecurity and change control practices support functional safety and availability

   Capital Project and Modernization Support:

• Provide SIS and critical instrumentation leadership for capital projects from FEL through commissioning, ensuring SIS scope is clearly defined, budgeted, and delivered to functional safety requirements

• Review and approve contractor deliverables including ISA datasheets, instrument index, loop drawings, wiring diagrams, P&IDs, logic diagrams, control narratives, shutdown keying philosophy, and commissioning/validation procedures

• Ensure SIS design is consistent with applicable standards and good engineering practice (IEC 61511/ISA 84, IEC 61508 concepts, IEC 62443 where applicable, NFPA/NEC for electrical installations, hazardous area requirements)

Shift

First Shift

• Drive standardization and obsolescence management for SIS platforms and safety rated devices; develop roadmaps for migration, spares, lifecycle support, and test strategy continuity

• Lead or support field commissioning, SIS validation, and functional testing; ensure comprehensive turnover packages (as-builts, SRS, proof tests, bypass