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[Structural Engineer] Structural Engineer

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The High Flux Isotope Reactor (HFIR) is currently preparing for an extended outage in late 2028 to replace the reactor beryllium reflector. Complete disassembly of all instruments in the thermal beam room and the guide network are required to perform the reactor beryllium replacement. To take advantage of the opportunity provided by the HBRR project, a series of neutron instrument projects to expand and improve the neutron science program at HFIR will be executed coinciding with the reactor outage. These improvements include:

Expansion of the existing Cold Guide Hall (CGH, building 7972) to provide more neutron instrument/laboratory space and more favorable instrument suite layout.
Redesign and replacement of the CGH neutron guide systems, common vacuum systems, and common radiation shielding to provide two additional neutron beamlines (increase from four to six), a more favorable instrument suite layout, and improved radiation shielding.
Various individual instrument improvements for the instruments in the CGH and thermal beam room.

The above scope is in the early engineering phase. ORNL is seeking a Structural Engineer on a subcontract basis to perform and support the engineering related to the HBRR instrument improvements.

�General scope:

The position will report and receive direction from the HBRR Level 2 manager for the thermal beam room and CGH instrument scope. The position will also interface with the Director of the HFIR Upgrade Project, the HBRR project manager, HFIR reactor engineering staff, Instrument Engineering staff, and other ORNL subject matter experts (SME).

Examples of job responsibilities include:

Contribute towards defining engineering requirements for instrument projects to ensure compliance with structural codes and standards and ORNL and DoE requirements.
Perform structural calculations, such as floor loading and seismic calculations.
Develop concepts and detailed designs for radiation shielding.
Develop concepts and detailed designs for equipment mounting, equipment trenches, and structural and equipment wall and floor anchors.
Work with rigging SMEs to develop lift plans for existing and new equipment.
Develop concepts and detailed designs for equipment access platforms, stairways, and mezzanines.
Develop demolition and construction plans.

�Work arrangement:

Fulltime, Mon.-Fri., onsite at the HFIR facility. Occasional remote work on a limited basis may be possible but is not guaranteed.

Minimum Qualifications:

A B.S. degree in Structural Engineering or Civil Engineering is required with a minimum of 10 years of experience.
Familiarity with structural codes and standards is required.
Must be able to receive access to export-controlled documentation under ORNL rules.

Preferred Qualifications:

A M.S. degree in Structural Engineering or Civil Engineering.
Familiarity with DOE standard 1020, Natural Phenomena Hazards Analysis and Design Criteria for DOE Facilities and DOE standard 1021, Natural Phenomena Hazards Performance Categorization Guidelines for Structures, Systems, and Components.
Experience in the design of neutron instruments and/or design in nuclear facilities.
Experience in qualifying structures for seismic and other interactions to be compliant with DOE or ORNL requirements.

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