Safety Instrumented System Engineer

Location: LEMONT, IL

The Safety Systems Engineer role involves providing engineering services and expertise to ensure the safe and reliable management of safety instrumented systems (SIS) at the refinery. This includes overseeing the entire lifecycle of the SIS in accordance with IEC 61511 standards. The SIS Engineer reports to the refinery SIS Leader.

Key Responsibilities:

  • Collaborate with the Maintenance department to maintain and troubleshoot installed SIS. This includes updating documentation, developing test procedures, providing support, troubleshooting issues, conducting critical work reviews, managing Management of Change (MOC) processes, recommending spare parts, and assisting in the development and execution of turnaround scopes.
  • Plan and ensure the completion of all SIS testing as defined in the Safety Requirements Specification (SRS), including both online and offline testing during outages and turnarounds.
  • Participate in investigations and review of SIS events, including failures, demands, and spurious trips.
  • Analyze and track the reliability of the SIS through a Key Performance Indicator (KPI) program, and make recommendations for enhancing the system's performance.
  • Act as a subject matter expert for SIS and instrumentation during Hazard and Operability Studies (HAZOPs), specifically in the analysis of Independent Protection Layers (IPLs) and the implementation of HAZOP recommendations.
  • Lead and participate in Functional Safety Assessments (FSAs) as a competent SIS engineer, evaluating the safety performance of both new and existing SIS implementations.
  • Update and maintain SIS documentation, including the Safety Requirements Specification (SRS), datasheets, instrumentation and electrical (I&E) drawings, FSAs, Layer of Protection Analysis (LOPAs), Factory Acceptance Tests (FATs), validation and proof tests, etc.
  • Take part in audits related to SIS, including those focused on Mechanical Integrity, Process Safety Management (PSM), and insurance risk.
  • Engineer small-scale expense-ruled SIS initiatives, which involve design, MOC, construction support, and updates to Process Safety Information (PSI) documentation. Prepare Engineering Work Requests (EWRs) for larger capital projects.

Additional Responsibilities:

  • Apply instrumentation and SIS expertise to various job functions, including instrument selection, logic solving, and final element assessment.
  • Create, review, approve, and update proof test procedures for installed SIS. Evaluate test results and develop corrective action plans as needed.
  • Play an active role in Layer of Protection Analysis (LOPA) exercises, contributing to the analysis of new and modified SIS implementations.
  • Provide technical support, field experience, and best practices to capital project engineers working on upcoming SIS initiatives, ensuring the success of each project.
  • Assist turnaround planners in justifying and defining the scope of SIS-related work based on instrument service history. Ensure readiness of SIS test procedures.
  • Select suitable replacement instrumentation and valves when components become obsolete, unreliable, or fail to meet specifications. Facilitate Management of Change (MOC) processes for SIS modifications, including updates to Process Safety Information (PSI) such as datasheets and instrumentation and electrical (E/I) drawings.
  • Review the validation test procedures (Site Acceptance Test) for new or modified SIS installations associated with capital projects.
  • Collaborate with Process Controls to ensure SIS application programs align with the respective Safety Requirements Specification (SRS) and undergo appropriate validation and proof tests.
  1. Bachelor's degree in Electrical Engineering or Chemical Engineering
  2. Minimum of 5 years of experience with industrial instrumentation
  3. Minimum of 3 years of experience in the process industry, preferably in refining
  4. Minimum of 2 years of experience with Safety Instrumented Systems
  5. Active certification from a 3rd party organization, such as exida (CFSE or CFSP) or TÜV (FS Engineer), is preferred
    1. Certification must be obtained within 12 months of being hired
  6. Experience working with Distributed Control Systems (DCS)
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