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Job Details


Company name
Tesoro Corporation.

Salt Lake City, UT

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Requisition ID: 61545

Provides process control network (PCN) technical support to ensure operational effectiveness of site’s process control environment. Assists engineering and other refinery groups with implementation of standards and best practices supporting mission-critical refinery-based PCN infrastructure in areas such as servers, applications, security firewalls, network switches and standard security architecture.


* Supports process controls engineering by providing technical support to troubleshoot and resolve PCN problems. * Implements and maintains systems to corporate standards and best practices for PCN management and maintenance. * Conducts security vulnerability analysis to identify and assess PCN risks. Establishes, implements and actively manages appropriate cyber security measures and practices defining preemptive and protective actions to mitigate vulnerabilities. Participates in Process Hazard Analysis (PHA) and Layers of Protection Analysis (LOPA) to evaluate accident risk. Responsible for standard security architecture (SSA). Assesses site’s compliance to corporate cyber security standard for process control. Identifies gap closure measures and tracks to complete. * Provides project support from concept to commissioning through review of PCN architecture. Develops plans for integrating new infrastructure into refinery. * Leads development and implementation of PCN integrity program to ensure network continuity. Develops, tracks and reports PCN performance metrics. Conducts trend analysis and recommends improvement/optimization opportunities. Participates in root cause analysis of hardware and software failures and incident investigations. Works with sites’ Technicians in conducting routine inspections and initiating corrective actions as needed. * Manages PCN firewalls and demilitarized zone (DMZ) ensuring physical separation with enterprise network. * Configures file systems, networks, virtual servers and domain controllers. Creates user account and provides user support. Maintains process control assets by performing periodically scheduled backups, software patching and antivirus protection of servers, workstations and process control hardware. * Manages process historian interfaces to control systems using OPC HAD[i], DA and Modbus communication protocols. Assists information technology personnel with troubleshooting loss of real-time data to historian user application.



* Minimum undergraduate degree in computer science, engineering or management information systems required. * Industry certification in Cisco Certified Network Associate (CCNA), Microsoft Certified Solutions Associate (MCSA) and VMware Certified Professional (VCP) required or willingness to secure within 36 months of hire.


* Minimum 5 years experience with refinery process control systems required.


* Requires high level of understanding of computer systems, computer networks and network security. * Knowledge of applicable ISA (International Society of Automation) standards on Industrial Control Systems Security. * Knowledge of Microsoft Windows and Windows Server at systems administrator level. * Understands Microsoft operating system and its administrative requirements. * Experience with Virtual computer implementation and VMware. * Experience applying computing techniques using Microsoft tools in process or refining industry. * Familiarity with industry data collection standards and interfaces e.g. OPC, relational database technology, web services, ODBC, XML etc. * Works extended hours, as required, including nights and weekends in process operations environment and during periods of inclement weather. Accesses areas of refinery requiring the use of stairs and/or ladders to inspect control equipment. Responds to process unit control upsets during off hours. Shares on-call duty with other department personnel.

Tesoro Corporation, a Fortune 100 company, is a leading independent refiner and marketer of petroleum products with a strategically focused presence in the western United States. Tesoro, through our subsidiaries, owns and operates seven refineries with a combined capacity of over 895,000 barrels per day. Our retail-marketing system includes over 2,400 retail stations under the ARCO®, Shell®, Exxon®, Mobil®, USA Gasoline(tm), Rebel(tm) and Tesoro® brands. Our full-service logistics business, a master limited partnership formed by Tesoro Corporation as Tesoro Logistics LP (TLLP), owns and operates 4,000 miles of crude oil, refined products and natural gas pipelines; 29 crude oil and refined products truck and marine terminals; 15 million barrels of storage capacity; two crude oil rail facilities; and four natural gas processing complexes. Headquartered in San Antonio, Texas, our operations span 18 states.

Our strength lies in our investment in employees and in their future. We measure success not only by the products we bring to our customers, or the financial results we deliver to our shareholders, but also by remaining true to our core values of safety and environmental stewardship, respect and integrity.

Discover your strengths and invest in your future by applying today.

Employees must be able to perform the essential functions of the job with or without reasonable accommodation.

Equal Opportunity Employer: Vet / Disability

Posting Notes: || Salt Lake City || Utah || United States (US) || SF:LI-LW1 || |Engineering || 84103 ||

Company info

Tesoro Corporation.
Website :

Company Profile
As one of the largest independent refiners and marketers of petroleum products in the United States, Tesoro plays an integral role in fueling the communities we serve. We are committed to safe, clean, reliable operations, while creating value for everyone invested in our success. Through our advantaged crude supply and integrated network of refineries, transportation and terminal operations, logistics assets and retail stations, we are intentionally positioned to capitalize on today’s opportunities and tomorrow’s possibilities.

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