Scientist – Postdoctoral Researcher for CRL IRMS Full-time

The of Nuclear Physics Institute of the Czech Academy of Sciences, in accordance with Act No. 283/1992 Coll. on the Czech Academy of Sciences, as amended by Act No. 420/2005 Coll. and the Statutes of the Czech Academy of Sciences, announces a selection procedure for the position of Scientist – Postdoctoral Researcher.

The Nuclear Physics Institute with its long tradition of nuclear research in Řež, is part of the Czech Academy of Sciences and focuses primarily on experimental and theoretical nuclear physics, including applied research.

We are the CRL radiocarbon laboratory at the Nuclear Physics Institute, equipped with an accelerator mass spectrometry (AMS) system, and we are the only laboratory of its kind in the Czech Republic. Our equipment also includes other analytical and laboratory instruments. In this area, we can compare ourselves with the world’s leading radiocarbon laboratories. We are currently working on several projects and also handle commercial orders (https://www.ujf.cas.cz/en/departments/department-of-radiation-dosimetry/).

Who we are looking for:

Scientist – postdoctoral researcher with experience in measuring the isotopic abundance of ¹³C and ¹⁵N using Isotope Ratio Mass Spectrometry (IRMS). Experience with HPLC (High Pressure Liquid Chromatography) and FTIR (Fourier Transformed Infrared spectroscopy) instruments is an advantage. Experience with radiocarbon dating is an advantage.

Required qualifications:

• professional experience with measuring the isotopic abundance of ¹³C and¹⁵N using IRMS with at least two years of experience in the required field
• PhD or equivalent in a relevant field
• ability to communicate actively in English (both in spoken and written form)
• scientific writing skills
• ability to work independently and collaborate within national and international teams
• experience in submitting applications for domestic and international projects is an advantage

Key responsibilities:

• perform research based on analytical methods and related instrumentation
• develop new methods and analytical procedures related primarily to radiocarbon dating
• analyse and interpret experimental data
• responsibility for the operation and reliability of instruments and measured data.
• publish results in high-impact scientific journals and present research findings at domestic and international conferences
• collaborate with partner institutions in the Czech Republic and abroad

What we offer:

• full-time employment (36-hour working week for employees in risk category A)
• fixed-term employment contract (12 months) with the possibility of extension
• work in a stable and prestigious research environment with excellent instrumentation
• scientific career with the opportunity to participate in interdisciplinary research projects
• flexible working hours
• salary based on qualifications and experience, possible semi-annual bonuses
• meal contributions of 115CZK/day
• five weeks of vacation plus one extra week for risk category A employees
• contributions to supplementary pension insurance, vacation, cultural events, and more (according to your choice)
• opportunity to apply for accommodation for employees of the Czech Academy of Sciences

Why NPI:

• NPI is the largest Czech institution in the field of nuclear physics – 150 experts working on internationally recognized research.
• the CRL radiocarbon laboratory at NPI
• in the field of analytical method development and instrumentation utilization, we are able to provide space for young scientists to carry out their work

Salary: 45 – 55 000 CZK/month

Place of work: Radiation Dosimetry Department, Institute of Nuclear Physics, Czech Academy of Sciences (premises of Bulovka University Hospital in Prague and research institutes in Řež near Prague)

Start date on April 1, 2026, or by agreement.

How to Apply & mandatory attachments:

If you are interested in this position, please submit the following documents to the contact listed below.

• curriculum vitae (CV) – including education, professional experience, a list of publications and conference contributions, research projects, and grant applications
• a copy of your Ph.D. certificate or an equivalent qualification
• a motivation letter, including an overview of past, current, and future research interests
• your earliest possible start date

Approximate application deadline: 30th June 2026, please do not hesitate to apply even after the deadline, date might be prolonged.

If you are interested, please send the above-mentioned documents to the contacts listed below.

Ing. Ivo Světlík, Ph.D., [Please click the Apply button for the link or address], CC: personalni@ujf.cas.cz

Please always include the following text with your email so that we can process the information you send us: I agree that my personal data sent to ÚJF AV ČR, v.v.i., with its registered office at Řež 292, 250 68 Husinec, be used exclusively for the purposes of job placement and maintaining a database of job seekers, in accordance with Act No. 101/2000 Coll. Consent is given for a period of one year and may be revoked in writing at any time.