Cryogenics technician: this little-known profession that manipulates extreme cold for the benefit of medicine and industry

Invisible to the general public, the profession of cryogenics technician plays a vital role in several cutting-edge sectors. From the preservation of organs for transplantation to medical research, and including the space industry and scientific laboratories, these specialists handle temperatures as low as -196°C using liquid nitrogen. It is a demanding activity where precision and adherence to safety protocols are essential.

A cryogenics technician is responsible for producing, transporting, storing, and using liquefied gases such as nitrogen, helium, or oxygen. They also work on complex installations requiring constant temperature and pressure control. In the medical field, they are involved in the preservation of stem cells, biological tissues, or gametes used in in vitro fertilization.

A profession at the crossroads of several disciplines

Cryogenics technicians primarily work in research laboratories, hospitals, biotechnology centers, the pharmaceutical industry, the nuclear sector, and the aerospace industry. Their daily work alternates between equipment maintenance, safety checks, technical analyses, and monitoring of storage procedures. A simple handling error can lead to the loss of biological samples or cause accidents related to extremely low temperatures.

To enter this profession, employers generally seek candidates with a two-year technical degree (BTS), a bachelor's degree (BUT), or an engineering degree in thermal engineering, physics, chemistry, or industrial maintenance. Additional training in industrial gas safety is often required before starting any position.

Opportunities in rapidly growing sectors

With the development of biobanks, cell therapies, cancer research, and quantum technologies, the need for cryogenics specialists is steadily increasing. Space and energy companies are also recruiting these professionals to work on facilities using cryogenic fluids.

At the start of their career, a cryogenics technician typically earns between €2,200 and €2,800 gross per month. More experienced professionals, particularly in the pharmaceutical or aerospace industries, can earn over €4,500 gross per month, sometimes supplemented by bonuses related to technical interventions or on-call duty. Despite its strategic role in high-tech fields, this profession remains largely unknown to the general public.