Research Associate (Postdoc) in the working group Aquatic Geochemistry with focus on Ocean Alkalinity Enhancement as a Carbon Dioxide Removal technology § 28 Subsection 2 HmbHG

Institution: Faculty of Mathematics, Informatics and Natural Sciences, Department of Earth System Sciences, Institute of Geology
Salary level: EGR. 13 TV-L
Start date: 01.03.2023 or later, the initial fixed term is three years. The contract provides for a maximum extension of up to three years depending on the associate’s achievements during the first stage. Providing that a position is available and that requirements have been fulfilled, the associate may apply for temporary civil servant status in accordance with Section 28 subsection 2 HmbHG.
Application deadline: 15.12.2022
Scope of work: full-time position suitable for part-time


Duties include teaching and research in the respective department or institute. Research associates may also pursue independent research and further academic qualifications as well as acquire teaching experience. These duties are intended to promote academic achievement. Therefore, at least one-third of set working hours will be made available for the associate’s own academic work.

Specific Duties

Enhance the understanding of sustainable Ocean Alkalinity Enhancement as a carbon dioxide removal (CDR) method. Duties include laboratory work with pilot-scale alkalinity reactors to understand key processes for sustainable alkalinity production to be distributed in seawater. Studying its stability after application in multiple experimental setups is one of the relevant aspects. Research is conducted within an international team of scientists and includes the coordination of experiments. Rapid publication of research results in relevant international journals and documentation of experimental work is expected. Own research impulses are supported, and time is allocated to develop an individual academic research profile. Teaching duties include four academic hours per week during teaching periods (two times 14 weeks per year).


A university degree in a relevant subject plus doctorate.

Excellent knowledge in aquatic geochemistry, specifically the carbonate system is expected. Advanced overview in the field of CDR methods, wet chemistry laboratory work (e.g. acid titration, ion chromatography, and others), analysis of solid phases (e.g. with Raman or Infrared spectroscopy or BET-surface area analyzer), hydrodynamics, designing and setting up experiments, as well as hydrochemical modelling of the carbonate system (e.g., with PhreeqC, CO2SYS) are required skills, which could partly be gained during an introduction period. Experience with reactor technologies for dissolving solid material is beneficial.

We offer

  • Reliable remuneration based on wage agreements
  • Continuing education opportunities
  • University pensions
  • Attractive location
  • Flexible working hours
  • Work-life balance opportunities
  • Public transport pass (ProfiTicket) and much more
  • Health management
  • Educational leave
  • 30 days of vacation per annum

As a University of Excellence, Universität Hamburg is one of the strongest research universities in Germany. As a flagship university in the greater Hamburg region, it nurtures innovative, cooperative contacts to partners within and outside academia. It also provides and promotes sustainable education, knowledge, and knowledge exchange locally, nationally, and internationally.

The Free and Hanseatic City of Hamburg promotes equal opportunity. As women are currently underrepresented in this job category at Universität Hamburg according to the evaluation conducted under the Hamburg act on gender equality (Hamburgisches Gleichstellungsgesetz, HambGleiG), we encourage women to apply for this position. Equally qualified and suitable female applicants will receive preference.

Severely disabled and disabled applicants with the same status will receive preference over equally qualified non-disabled applicants.

Instructions for applying

Prof. Dr. Jens Hartmann
+49 40 42838-6686

Reference number: 462


Bundesstraße 55
20146 Hamburg
Zu Google Maps

Application deadline: 15.12.2022

Send us your complete application documents (cover letter, curriculum vitae, copies of degree certificate[s] and if necessary ID attesting to your disability or proof of equivalent status) via the online application form only.

If you experience technical problems, send an email to

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published: 27 October 2022     Please mention EARTHWORKS when responding to this advertisement.