Discipline Engineer- Instrumentation

Purpose of Job

Reporting to the Discipline Engineering Lead, the Instrumentation Engineer provides subject matter expertise supporting Discipline Engineering and Project Delivery across the Americas. The role spans ongoing operations, capital projects, and turnaround activities with a primary focus on instrumentation engineering and is expected to own technical changes in the facility within all aspects of instrumentation and controls.

Key Accountabilities

Forensic / RCA

• Investigate instrumentation failures, control loop anomalies, and instrumented system deficiencies and develop corrective action recommendations
• Root cause analysis of instrumentation failures during startup, shutdown, or abnormal operations

Instrumentation Design / Engineering of Record

• Size and specify instrumentation for flow, pressure, level, temperature, and analytical applications per applicable standards
• Develop and review instrument datasheets, specifications, and installation details
• Review and approve vendor data sheets and fabrication packages for instrumentation and control equipment
• Serve as engineer of record for on-site instrumentation engineering and design

Control Systems

• Support design, configuration, and modification of DCS systems including I/O architecture and wiring — with preference for Emerson DeltaV and ABB platforms
• Support PLC design and programming review including ladder logic and function block diagrams — with preference for Allen Bradley
• Define instrumentation and controls integration requirements for capital projects and facility modifications

Safety Instrumented Systems (SIS)

• Support SIS design activities in compliance with IEC 61511 and ISA 84
• Participate in SIL assessments and safety requirement specification (SRS) development

PSM / Regulatory

• Participate in or lead PHA/HAZOP reviews for instrumented systems and control loops
• Ensure compliance with ISA, IEC, NEC, and API standards; support the waiver process when necessary
• Manage instrumentation documentation register ensuring as-built accuracy after MOC or TAR activity

Capital Projects / FEL

• Define the instrumentation and controls basis of design during FEL for new or modified units
• Review P&IDs for instrumentation completeness, consistency, and code compliance
• Serve as instrumentation discipline lead during FEED and detailed design phases

TAR-Specific

• Coordinate pre-TAR instrumentation scope including device calibration, inspection, testing, and return-to-service verification
• Evaluate instrumentation condition reports and disposition findings

Standards / Continuous Improvement

• Develop or revise company instrumentation engineering standards and specifications
• Conduct gap assessments against ISA, IEC, and API code updates and lessons learned

Formal Education

•  Bachelor’s Degree in Engineering.
• Professional Engineering License preferred.

Working Experience

• Experience performing detailed engineering and design for PSM regulated petrochemical or refining industries.
• 8+ years relevant experience required.

Required Personal/Professional Skills

• Strong written and verbal communication skills with the ability to work effectively across cross-functional and multi-disciplinary teams, including engineering, design, maintenance, operations, and management at all levels.
• Willingness and ability to hold technical positions confidently, constructively challenge decisions, and influence outcomes at all levels of the organization — including senior and executive leadership — with a humble, team-oriented approach.
• Capable of taking initiative on technical tasks and driving them forward independently, while knowing when to engage broader stakeholders for alignment and support.
• Understanding of instrumentation engineering and construction activities in both capital project execution and operating facility support environments.
• Knowledge of instrumentation design methods, best practices, and techniques for engineering and constructing petrochemical facilities.
• Knowledge of DCS systems including I/O interface requirements and wiring; Emerson DeltaV and ABB experience preferred.
• Knowledge of PLC systems including ladder logic and function block programming; Allen Bradley experience preferred.
• Working knowledge of Safety Instrumented System design principles and IEC 61511/ISA 84 requirements; willingness to develop deeper proficiency as needed.
• Knowledge of stage gate project development and execution processes.
• Familiarity with SAP or a similar enterprise system.