The Assistant Cryogenics Engineer helps produce and maintain a continuing supply of liquid helium, liquid nitrogen, and nitrogen gas on the Evanston campus, in the Cryogenic Facility’s closed (helium liquefaction) and open (nitrogen distribution) systems. He/she develops and executes cryogenics training for safe practice and to conserve helium a non-renewable resource.
This is a term position ending on 8/31/2021. Opportunity for renewal will be based on performance and available funding.
The Assistant Cryogenics Engineer will run the helium liquefier and recover helium gas from users in a closed system encompassing all major science buildings on the Evanston campus, approximately 30,000 liquid liters per year.Provide liquid nitrogen and gaseous nitrogen in an open system encompassing all major science buildings on the Evanston campus approximately, 36 million cubic feet of gas per year.
Manage supply and billing including the ordering of raw product from providers. Manage distribution of liquid helium, liquid nitrogen and gaseous nitrogen to all users on the Evanston campus. Maintain record keeping and reporting to the Director of Cryogenic Facilities, to the University’s office of Research and to the Bureau of Land Management (helium).
The Assistant Cryogenics Engineer operates and helps to maintain and repair liquid helium production equipment including eighteen 100 liter storage dewars, a 1,500 liter liquefaction dewars a 1410 liquefier, a RS screw compressor from Linde Cryogenics LC, two high pressure compressors (3000 psi), two reciprocating high throughput model 1400 compressors, storage for low and high pressure gas, and the gas recovery system.The Assistant Cryogenics Engineer helps to oversee bulk nitrogen delivery to a 6,000 gallon storage tank, and maintain the liquid and gas nitrogen distribution system including three self-serve liquid delivery stations and seventy 160 liter liquid nitrogen dewars.
Helium is a non-renewable resource in short supply suffering from wild swings in availability and price. The Assistant Cryogenics Engineer, must be knowledgeable of the helium market dynamics in order to strategically plan, adjust production and, most importantly, to reduce helium losses in order to maintain inventory that is of critical importance to research.
Assists in the development of training modules and holds regular training workshops for the users of cryogenics, consistent with good practice to promote safety, to reduce losses, and to minimize the effects of raw product shortages.
Performs other duties as assigned.
A Bachelor’s degree or an equivalent combination of education, experience &/or training.
2-3 years of Prototype and design experience.
Prior work/instruction in an academic research environment.
No prior experience required with overseeing and operating helium liquefaction facilities and handing cryogenic liquids.
Minimum Competencies: (Skills, knowledge, and abilities.)
Instrument making and machine operation skills.
Computer and electronics skills.
Preferred Qualifications: (Education and experience)
Master’s degree in a related field.
1-2 years of experience overseeing and operating helium liquefaction facilities, including experience with handing cryogenic liquids.
Northwestern University is an Equal Opportunity, Affirmative Action Employer of all protected classes, including veterans and individuals with disabilities. Women, racial and ethnic minorities, individuals with disabilities, and veterans are encouraged to apply. Hiring is contingent upon eligibility to work in the United States.
Internal Number: 36990
About Northwestern University
Northwestern University is a major private research university with 12 academic divisions located on three campuses in Evanston, Chicago, and Education City in Doha, Qatar. We have approximately 2,500 full-time faculty members, 17,000 graduate and undergraduate students, and over 5,700 full and part-time staff. Northwestern University combines innovative teaching and pioneering research in a highly collaborative environment. It provides students and faculty exceptional opportunities for intellectual, personal and professional growth.