As of November 1, 2025, Sunoco LP has successfully completed its acquisition of Parkland Corporation. Sunoco LP is a leading energy infrastructure and fuel distribution master limited partnership operating across 32 countries and territories in North America, the Greater Caribbean, and Europe. The Partnership’s midstream operations include an extensive network of approximately 14,000 miles of pipeline and over 160 terminals. This critical infrastructure complements the Partnership’s fuel distribution operations, which distribute over 15 billion gallons annually to approximately 11,000 Sunoco and partner-branded retail locations, as well as independent dealers and commercial customers. At Sunoco, we take excellent pride in what we do and wholeheartedly believe our employees drive success for our company and our customers. The Safety Instrumented System (SIS) Engineer is the designated owner of the refinery's Safety Instrumented Systems (SIS) program and serves as the refinery's technical authority for Safety Instrumented Systems (SIS) and Burner Management Systems (BMS). The role is responsible for governance and oversight of the functional safety lifecycle, ensuring compliance with IEC 61511 and refinery functional safety requirements, and providing technical leadership and subject matter expertise throughout the lifecycle of SIS and BMS applications. This position supports process safety, regulatory compliance, capital project execution, commissioning, startup, and lifecycle management activities across refinery operations. The successful candidate will develop and maintain Safety Requirements Specifications (SRS), support process hazard analyses and risk assessment activities, and provide technical oversight for SIS
- and BMS-related projects and process safety initiatives.



Responsibilities include supporting new projects, sustaining existing systems, and providing technical expertise to ensure SIS and BMS applications are designed, implemented, maintained, and operated in accordance with functional safety requirements throughout their lifecycle. Develop, maintain, and continuously improve Safety Instrumented System (SIS) asset strategies, proof-test requirements, and preventive maintenance requirements to ensure ongoing compliance with Safety Requirement Specifications (SRS) and functional safety requirements. Assess SIS performance, reliability, and operating history prior to changes in proof-test intervals, testing frequencies, or preventive maintenance requirements. Conduct risk assessments and provide technical review of SIS testing and preventive maintenance deferrals. Evaluate SIS-related Management of Change (MOC) requests involving modifications, logic changes, configuration changes, impairments, bypasses, or decommissioning activities. Maintain SIS application logic, configuration records, backups, and version control. Perform and document validation, verification, and QA/QC activities following SIS modifications, repairs, replacements, or upgrades. Review and approve changes to SIS proof-test procedures and testing methodologies. Review and approve alternative testing strategies following turnarounds, outages, or extended equipment downtime.



Maintain SIS process safety information, lifecycle documentation, testing records, and associated compliance records. Support Functional Safety Assessments (FSA) and provide technical stewardship of the SIS program to ensure SIS design, asset strategies, proof-test requirements, maintenance requirements, and testing intervals remain aligned with approved Safety Requirement Specifications (SRS) throughout the SIS lifecycle. SIS Design, Implementation Develop and maintain Safety Requirement Specifications (SRS), Cause & Effect Diagrams and Control Narratives for new and modified SIS applications. Perform SIL determination and verification calculations and ensure proper implementation of Safety Instrumented Functions (SIFs). Develop, review, and approve Functional Design Specifications, Safety Validation Plans, SIS logic, and Factory Acceptance Test (FAT) procedures. Process Safety & Regulatory Compliance Review P&IDs;, MOCs, and engineering deliverables to ensure SIS scope is properly identified and executed. Serve as the refinery Subject Matter Expert for SIS and Burner Management Systems. Ensure SIS and BMS applications comply with applicable regulations, corporate standards, and industry best practices. 3, and applicable Technical Safety BC requirements. Project Delivery & Technical Support Act as technical lead for SIS and BMS capital projects and provide technical guidance throughout project execution. Review, provide guidance on, and approve SIS-related engineering deliverables, vendor packages, and design documentation. Support FEL, detailed engineering, procurement, FAT, commissioning, startup, and operational readiness activities. Lead SIS validation, commissioning support, and troubleshooting activities,

📌 Senior Safety Instrumented System Engineer II (Vancouver)
🏢 Parkland
📍 Vancouver