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STS Lead Safety Systems Engineer

Date: Jan 13, 2021

Location: Oak Ridge, TN, US, 37831

Company: Oak Ridge National Laboratory

Requisition Id 4839 



The Second Target Station (STS) is a >$1Billion, Department of Energy project to be constructed at the ORNL Spallation Neutron Source (SNS). The STS will provide wholly new capabilities for the study of a broad range of materials with neutron scattering and support thousands of users from the physical, materials, and applied sciences and industry. The science capabilities provided by the instrument suite at the STS will complement those of the two existing DOE Office of Science neutron scattering user facilities at ORNL, the First Target Station (FTS) of the SNS and the High Flux Isotope Reactor (HFIR). The STS will deliver the highest peak brightness of cold neutrons in the world, which together with advances in neutron optics, instrumentation, and detectors, will ensure US leadership in neutron scattering for decades to come.




Oak Ridge National Laboratory (ORNL) is seeking a Lead Safety Systems Engineer for Personnel Protection System (PPS) at the Second Target Station (STS) project. This is an opportunity to join the project at an early stage and help define system architecture and technical approaches.


STS Integrated Control Systems (ICS) provides the control systems, data acquisition, computing infrastructure, and protection systems for the neutron scattering instruments, accelerator, target, and conventional facilities technical utilities. The ICS scope includes the design, development, installation, and testing of software and hardware, and integration with technical systems. The group provides expertise in software, process controls, instrumentation, digital design, electronics, and computing. The control systems for the STS will be based on the Experimental Physics and Industrial Control Systems (EPICS) toolkit.

The STS Lead Safety Systems Engineer leads the design and integration of Personnel Protection Systems including credited engineered controls. The Lead Safety Systems Engineer works closely with engineers and Environmental Safety & Health (ES&H) staff to develop requirements, define technical interfaces, and create solutions to meet project requirements and future operational needs. The scope includes all aspects of Personnel Protection Systems for STS including access controls, radiation monitoring and interlocks, and oxygen deficiency hazard monitoring for accelerator systems, target systems, and neutron scattering instruments. The STS Personnel Protection System will be a PLC-based system and must be fully integrated with the existing SNS PPS.


This position reports to the STS Integrated Control Systems Leader and interfaces closely with engineers and ES&H staff from across the STS Project and SNS.

Major Duties and Responsibilities


  • Coordinate technical scope of the STS Personnel Protection System to design and implement effective solutions to meet project needs. May serve as the Control Account Manager (CAM) for this system.
  • Lead the design and implementation of Personnel Protection Systems scope—consistent with the DOE Accelerator Safety Order—for STS accelerator systems, target systems, and neutron scattering instruments including access controls, radiation monitoring and interlocks, and oxygen deficiency hazard monitoring. Specify instrumentation appropriate for a safety system.
  • Create comprehensive documentation including requirements, specifications, interface documents, designs, installation plans, test plans, and certification processes. Collaborate with technical system experts, ES&H staff and SNS PPS staff to review and track design changes.
  • Develop cost and schedule estimates and track progress to the work plan.
  • Working as part of a multi-discipline group, contribute towards control system architecture design and standards.
  • Collaborate with peers at the Spallation Neutron Source and other large experimental physics projects to leverage community developed solutions to benefit the project.
  • Participate in project reviews, including presenting to internal and external technical review committees.
  • Contribute towards management of budget and schedule for Integrated Control Systems scope.
  • Support the delivery of project milestones based on project work plans.
  • Ensure compliance with Environment, Safety and Health (ES&H) and QA requirements.
  • As a member of the ORNL scientific community, you will be expected to commit to ORNL's Research Code of Conduct. Our full code of conduct, and a statement by the Lab Director's office can be found here:


Basic Qualifications


  • BS degree in engineering or related field, and 6 or more years of control system engineering experience.
  • Demonstrated technical expertise which includes safety system specification, design, documentation, implementation, and certification. Experience performing qualitative and quantitative risk analysis.
  • Experience with programmable logic controller (PLC) system design and programming, preferably ControlLogix and/or safety-rated PLCs.
  • Experience with safety systems and interlocks for large-scale complex systems.
  • Demonstrated experience developing accurate and detailed design packages, design verification plans, and test documentation.
  • Proven success as a contributor or subsystem leader in developing and delivering distributed control and safety systems including defining requirements and developing documentation, preferably for a large experimental science project.

Preferred Qualifications

  • An advanced degree and 7 or more years of controls system engineering experience is preferred.
  • Experience implementing safety systems consistent with DOE Order 420.2C Safety of Accelerator Facilities and 10 CFR 835 Occupational Radiation Protection Program.
  • Familiarity with standards IEC 61508, IEC 61511, IEC 62061, and IEC 62443.
  • Technical experience at an accelerator or other large-scale science facility.
  • Familiarity with EPICS.
  • Experience with distributed control systems and TCP/IP networking.
  • Familiarity with DOE 413.3B project management requirements or earned value management systems (EVMS).
  • Ability to work and communicate effectively with diverse teams of scientists, engineers, and technicians.


Authority/Approval Levels


Provides coordination of engineers, scientists and designers. Represents Integrated Control Systems to other technical systems.


Measures of Effectiveness


  • Successfully manages integration of engineering aspects of assigned STS integrated controls systems scope.
  • Successfully designs, develops, installs and tests assigned STS controls systems scope.
  • Successfully represents STS at reviews and other project meetings and workshops.


Relocation:  Moving can be overwhelming and expensive. UT-Battelle offers a generous relocation package to ease the transition process. Domestic and international relocation assistance is available for certain positions. If invited to interview, be sure to ask your Recruiter (Talent Acquisition Partner) for details.
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This position will remain open for a minimum of 5 days after which it will close when a qualified candidate is identified and/or hired.

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ORNL is an equal opportunity employer. All qualified applicants, including individuals with disabilities and protected veterans, are encouraged to apply.  UT-Battelle is an E-Verify employer.

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