Mr. Jessen has over 45 years’ experience and is an accomplished senior manager and technical consultant with a successful track record within the U.S. Department of Energy (DOE) and private business.

His early career focus was advanced weapons technologies primarily within the materials science discipline. His DOE career is highlighted by a rapid succession within the technical and management ranks culminating as the Division Director for Enriched Uranium Operations at the DOE Y-12 Plant in Oak Ridge, Tennessee. His responsibilities included many aspects of uranium processing: Uranium and Uranium Alloy Manufacturing, Enriched Uranium Nuclear Fuel Manufacturing (UO2), Enriched Uranium Chemical Processing, Enriched Uranium Melting and Casting, Enriched Uranium Fabrication and Enriched Uranium Support Functions.

Mr. Jessen is recognized within the DOE complex as an effective leader and strategic thinker with substantial experience in creating new programs and restructuring operations while maintaining technical and organizational competence. Mr. Jessen’s additional areas of expertise include enriched uranium purification, thermal conversion, and bomb reduction.

Mr. Jessen is a recognized national and international uranium processing metallurgical expert with a career covering many areas of nuclear operations management, nuclear weapons manufacturing technology, nuclear materials process quality management and nuclear facility safety basis compliance.

Education
PhD. Course work completed – 1976
M.S., Industrial Engineering, University of Tennessee – 1972
B.S., Metallurgical Engineering, University of Tennessee – 1967
Registrations
• DOE “Q” (Active)
• NRC “Q” (Inactive)
Proficiencies
• Uranium and Plutonium Metallurgical Processing Technology
• Conduct of Operations and Nuclear Facility Readiness Start-Up
• Production Management
• Facility Maintenance
• Production Quality Control
Responsibilities
• Tech Source, Inc., Senior Technical Consultant | 2019 – Present
• ARES Corporation, Sr. Consultant/Project Manager, Los Alamos, New Mexico | 2009 – 2019
• Pro2Serve, Office Site Manager, Los Alamos, New Mexico | 2001– 2009
• Lockheed Martin Energy Systems, as Director of Enriched Uranium Operations at the Y-12 Plant responsibilities included managing and directing organizational functions and operational activities for the production US Nuclear Navy fuel, DOE research reactor fuel, DOE nuclear weapons special materials and radioactive isotopes for medical research. | 1984 – 2001
• Union Carbide Corporation, Department Manager Depleted Uranium Operations, Oak Ridge, Tennessee. Lockheed Martin Energy Systems, Department Manager Depleted Uranium Operations, Oak Ridge, Tennessee. Responsibilities included managing the Y-12 Plant’s Depleted Uranium and commercial materials manufacturing and production operations. Duties included directing the administration oversite of production technology for the processing of reactive metals and alloys, high strength steels, aluminum alloys, stainless steels, titanium alloys, ceramics, and plastics (1975 – 1981)
Education
PhD. Course work completed – 1976
M.S., Industrial Engineering, University of Tennessee – 1972
B.S., Metallurgical Engineering, University of Tennessee – 1967
Registrations
• DOE “Q” (Active)
• NRC “Q” (Inactive)
Proficiencies
• Uranium and Plutonium Metallurgical Processing Technology
• Conduct of Operations and Nuclear Facility Readiness Start-Up
• Project Management
• Facility Maintenance
• Production Quality Control
Responsibilities
• Tech Source, Inc, Senior Technical Consultant on contract to DOE ( 2019 – Present)
• ARES Corporation, Sr. Consultant/Project Manager, Los Alamos, New Mexico ( 2009 – 2019)
• Pro2Serve, Office Site Manager, Los Alamos, New Mexico (2001– 2009)
• Lockheed Martin Energy Systems, as Director of Enriched Uranium Operations at the Y-12 Plant responsibilities included managing and directing organizational functions and operational activities for the production US Nuclear Navy fuel, DOE research reactor fuel, DOE nuclear weapons special materials and radioactive isotopes for medical research. (1984 – 2001)
• Union Carbide Corporation, Department Manager Depleted Uranium Operations, Oak Ridge, Tennessee. Lockheed Martin Energy Systems, Department Manager Depleted Uranium Operations, Oak Ridge, Tennessee. Responsibilities included managing the Y-12 Plant’s Depleted Uranium and commercial materials manufacturing and production operations.. (1981– 1984)
• Union Carbide Corporation, Group Leader - Metallurgical Process Development, Oak Ridge, Tennessee (1975 – 1981)
• Union Carbide Corporation, Metallurgical Process Development Engineer, Oak Ridge, Tennessee (1967 – 1975)

Other Experience

• Served as Quality Specialist for the URENCO National Enrichment facility start-up activities in Eunice, NM. The start-up criteria followed the NRC’s commercial grade dedication compliance. Duties included verifying engineering design compliance in the as-built facility, which focused on inspections of critical equipment dimensions, welding quality, mechanical compliance, material hardness, chemistry and mechanical thread compliance. In addition, assignments included criticality safety audits and design compliance inspections on the as-built processing equipment and administrative organization for the Plant Criticality Department. (2006 – 2013)
• Set up an interim Mass Spec Laboratory at the Carlsbad Environmental Materials Research Center (CEMRC) in support of the NEF/LES UF6 chemical analysis needs. All of the engineering activities at both NEF and CEMRC required compliance with the NRC nuclear materials processing and handling criteria for nuclear safety, performance and reliability of Hazardous Material (HazMat)
• Lead the reviewed for accuracy, completion, and adequacy corrective actions for the DOE Oak Ridge management oversite of the UPF engineering design for the Y-12 Plant capital project. (2017 – 2018)
• Tutored engineering math, science and chemistry at Santa Fe Community College. (2013 – 2015)
• Served as Chairmen of the Y-12 Management Criticality Oversite Committee. (1985 – 1999)
• Served on the Y-12 plant Emergency Operations Committee as the plant operations manager. (1985 – 1999)
• Served as the management/leadership instructor at Y-12 and trained 800 supervisors. (1980 – 1983)
Memberships
• American Metallurgical Society (ASM)
• National Management Association (NMA)
• Fellow of American Society for Metals International
• National Materials Advisory Board – National Research Council
• Knights Of Columbus (3rd Degree)
Publications
• Melting, Casting, and Metalworking of Uranium and Uranium Alloys – 1982
• Report for the Panel on Uranium Alloys for Large Caliber, High Density, Kinetic Armor Piercing penetrators – 1978
• Melting and Casting of Uranium Alloys – 1973
• Metallurgical Processing of the Uranium -0.75 Titanium Alloy – 1977

Achievements

• Awarded Knights of Columbus Third Degree – 2022
• Los Alamos, NM, ASM Chapter Chairman – 2005
• Board of Directors, National Management Association, Oak Ridge, TN, Chapter – 1996
• Operations Improvement Award, Lockheed Martin Energy Systems – 1995
• Achievement Award: Manager of the Year, Lockheed Martin Corporation – 1994
• Board of Trustees, American Society for Metals International – 1990-1993
• ASM National Strategic Planning committee – 1986-1989
• Leader of the ASM National Committee for Chapter development – 1980-1985
• Oak Ridge ASM Chapter Chairman – 1989
• Operations Improvement Award, Lockheed Martin Energy Systems – 1989
• Fellow of American Society for Metals International – 1985
• Appointed to the National Materials Advisory Board – National Research Council – 1977
• Served as Quality Specialist for the URENCO National Enrichment facility start-up activities in Eunice, NM. The start-up criteria followed the NRC’s commercial grade dedication compliance. Duties included verifying engineering design compliance in the as-built facility, which focused on inspections of critical equipment dimensions, welding quality, mechanical compliance, material hardness, chemistry and mechanical thread compliance. In addition, assignments included criticality safety audits and design compliance inspections on the as-built processing equipment and administrative organization for the Plant Criticality Department. | 2006 – 2013
• Set up an interim Mass Spec Laboratory at the Carlsbad Environmental Materials Research Center (CEMRC) in support of the NEF/LES UF6 chemical analysis needs. All of the engineering activities at both NEF and CEMRC required compliance with the NRC nuclear materials processing and handling criteria for nuclear safety, performance and reliability of Hazardous Material (HazMat). | 2008 – 2010
• Lead the reviewed for accuracy, completion, and adequacy corrective actions for the DOE Oak Ridge management oversite of the UPF engineering design for the Y-12 Plant capital project. | 2017 – 2018
• Tutored engineering math, science and chemistry at Santa Fe Community College. | 2013 – 2015
• Served as Chairmen of the Y-12 Management Criticality Oversite Committee. | 1985 – 1999
• Served on the Y-12 plant Emergency Operations Committee as the plant operations manager. | 1985 – 1999
• Served as the management/leadership instructor at Y-12 and trained 800 supervisors. | 1980 – 1983
Memberships
• American Metallurgical Society (ASM)
• National Management Association (NMA)
• Fellow of American Society for Metals International
• National Materials Advisory Board – National Research Council
• Knights Of Columbus (Third Degree)
Publications
• Melting, Casting, and Metalworking of Uranium and Uranium Alloys – 1982
• Report for the Panel on Uranium Alloys for Large Caliber, High Density, Kinetic Armor Piercing penetrators – 1978
• Melting and Casting of Uranium Alloys – 1973
• Metallurgical Processing of the Uranium -0.75 Titanium Alloy – 1977