Job offers

The Nuclear Physics Institute of the Czech Academy of Sciences is looking for a postdoctoral researcher (m/f) to join our Ultrarelativistic Heavy-Ion Physics group. Our group has been studying the properties of the quark-gluon plasma (QGP), a hot and dense state of nuclear matter produced in nucleus-nucleus collisions at the RHIC accelerator at BNL and the LHC at CERN, for many years. The successful candidate will join research carried out within our participation in the ALICE experiment at the LHC. In addition to data analysis, our group is involved in the upgrade of the ALICE ITS3 inner tracking detector for LHC Run 4 and in the preparation of the future ALICE3 experiment, which will replace the current ALICE experiment after 2030.

Your scope of work?

• Analysis of experimental data from the ALICE experiment, with a focus on hard probes (jets, heavy quarks, or quarkonia),
• work on the upgrade of the ITS3 inner tracking detector and on the preparation of the future ALICE3 experiment (radiation-tolerance testing, simulations, and software development),
• preparation of scientific publications and presentations at international conferences,
• preparation of grant proposals.

Required qualifications and skills:

• completed PhD in particle or nuclear physics (obtained within the last five years)
• knowledge of C++, ALICE O2, Python, and ROOT; knowledge of machine-learning methods is an advantage
• Advantage: experience with silicon detectors
• proficient English & ability to work in an international team,
• clear PC (police clearance), independent worker.

What do we offer:

• full-time employment (100% position) with reduced working week of 36 hours for risk category A
• Flexible working hours and occasional home-office (after the probation period)
• Salary based on qualifications and experience, possible half-year bonuses
• Five weeks of vacation plus one additional week for employees in risk category A
• A meal allowance of CZK 115 & reasonable canteen on-site
• Contributions on pension plans, holidays, cultural events, and other (of choice)
• Language courses in majority funded by the employer
• Work in a stable and prestigious research environment equipped with top class instrumentation
• Scientific career with opportunities to participate in top-tier international projects
• Employment information: We offer a fixed-term employment contract for 18 months, from 1 January 2027 to 30 June 2028.
• Place of work: Řež, Husinec – easy access from Prague by public transport (approx. 20 mins).

Selection process:

Interested candidates should submit the following documents to the contact address below:

• Motivation letter,
• CV with consent of GDPR,
• List of publications,
• Three letters of recommendation

Application deadline: October 1, 2026, the position will remain open until filled.

Contacts:
RNDr. Filip Křížek, Ph.D., krizek@ujf.cas.cz
CC: HR dept.: personalni@ujf.cas.cz

Please always include the following text together with your e-mail so that we can process the data you provide: I agree that my personal data sent to the Nuclear Physics Institute of the Czech Academy of Sciences, public research institution, with its registered office at Řež 292, 250 68 Husinec, may be used exclusively for the purposes of employment mediation and maintaining a database of job applicants, in accordance with Act No. 101/2000 Coll. The consent is granted for a period of one year and may be revoked at any time in writing.

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 using AMS (Accelerator Mass Spectrometry) systems. Experience in related fields (physical chemistry, chemistry, analytical chemistry) is an advantage.

Required qualifications:

• PhD or equivalent in a relevant field
• at least two years of experience in the required field
• professional experience in the use of AMS systems
• 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
• 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 – 50 000 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:

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

Your application must include:

• 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

Application deadline: 28 February 2026

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

Ing. Ivo Světlík, Ph.D., svetlik@ujf.cas.cz

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.

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:

• PhD or equivalent in a relevant field
• at least two years of experience in the required field
• professional experience with measuring the isotopic abundance of ¹³C and ¹⁵N using IRMS
• 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
• 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 – 50 000 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:

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

Your application must include:

• 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

Application deadline: 28 February 2026

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

Ing. Ivo Světlík, Ph.D., svetlik@ujf.cas.cz

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.