The Max Planck Institute for Biogeochemistry (MPI-BGC) in Jena is dedicated to interdisciplinary fundamental research in the field of Earth system sciences with a focus on climate and ecosystems. The internationally renowned institute, which currently employs around 280 people, celebrated its 25th anniversary in 2022. Jena is known for its high-tech industry, internationally renowned research institutions, and a modern university, but it also has a beautiful natural setting in the green Saale valley with steep limestone slopes. The city of Jena has an active student scene and a diverse cultural life. At the earliest opportunity, we are looking for a Radiocarbon Laboratory Engineer (m/f/d) for a full-time position for 2 years, with potential for a permanent position.

Background and position description

The MPI for Biogeochemistry seeks an engineer to support the institute’s ¹⁴C lab facility, which supports radiocarbon measurements in biogeochemistry and carbon cycle research. The facility is equipped with an IonPlus Micadas accelerator mass spectrometer system with a hybrid ion source that allows for the measurement of graphite targets as well as CO₂ gas inlet operation for very small samples. It also has a laboratory for preparation, CO₂ purification, and graphitization of samples, with automation involved in several processes. The ¹⁴C laboratory staff includes a laboratory head, an engineer (open position), and two chemical technical assistants specializing in sample pretreatment and graphitization.

We seek an engineer who will support regular operations, maintenance, and ongoing development of the laboratory systems, with the expertise to identify and repair problems with instrumentation and software interfaces. The individual will support the ¹⁴C lab team to supply routine radiocarbon analyses to support science at the MPI for Biogeochemistry, as well as work with scientists to develop new systems for sample preparation.

Your tasks

• Routine operation, including data analysis, maintenance, troubleshooting, and repair of the Micadas accelerator mass spectrometer, including ion source and inlet systems.  
• Maintenance and repairs of existing sample preparation instruments and vacuum lines for sample combustion, CO₂ purification, and graphitization. 
• Technical development of new sample preparation systems to support projects involving radiocarbon measurement in the Institute.
• Collaboration with other ¹⁴C lab members in designing and fulfilling quality assurance processes.

Your profile

• University degree in engineering, or a Master’s degree in Physics, or a lab-based natural science.
• Demonstrated expertise in operation, maintenance, and troubleshooting / repair of complex automated instrumentation.
• Knowledge of software (e.g. Labview or similar) used for automation of lab instrumentation.
• Precision mechanical work is part of the repairs and maintenance of devices on the accelerator and in sample preparation.
• Proactive and ‘hands-on’ mentality, with ability to work accurately and independently.
• Good skills in written and spoken English for communication with an international team.

The following qualifications are highly desirable:

• Experience or interest in learning the operation and maintenance of systems for AMS measurement of radiocarbon.
• Experience with vacuum systems for isolation of CO₂, automated combustion systems, or stable isotope measurements.

Our offer

The full-time position is to be filled as soon as possible. Part-time work is generally possible. The position will be evaluated and graded following the collective agreement according to TVöD Bund; in addition, we will provide a pension plan based on the public service (VBL).

The Max Planck Society (MPS) strives for gender equality and diversity. The MPS aims to increase the proportion of women in areas where they are underrepresented. Women are therefore explicitly encouraged to apply. We welcome applications from all fields. The Max Planck Society has set itself the goal of employing more severely disabled people. Applications from severely disabled persons are expressly encouraged.

Your application

Are you interested? Please send us your application with cover letter, curriculum vitae, as well as names and contact information of two references summarised in a PDF file (max. 10 MB) by e-mail to bewerbung@bgc-jena.mpg.de or to the

Max-Planck-Institut für Biogeochemie
Personalbüro: Kennwort “03/2026”
Hans-Knöll-Straße 10
07745 Jena
Germany

by 15th May 2026, quoting the reference number 03/2026. We ask that you do not use application folders, but only submit copies, as your documents will be destroyed in accordance with data protection regulations after the application process has been completed. We look forward to receiving your application!