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Experienced Postdoc for the Coordination of the Simulation Laboratory Terrestrial Systems

Advertising institute: IBG-3 - Agrosphere
Reference number: 2018-023

Geoverbund ABC/J is the geoscientific network in the research region of
Aachen–Bonn–Cologne/Jülich. The geoscientific institutes of RWTH Aachen University, the University of Bonn, the University of Cologne, and Forschungszentrum Jülich collaborate under its umbrella. Established in 2009, the cooperation efficiently pools and interconnects the expertise in geoscientific research and education gained at these institutions over several decades. Geoverbund ABC/J initiates and promotes research projects spanning different locations, supports early-career scientists, and encourages easy access to scientific infrastructures. http://geoverbund.de

Simulation Laboratories (SimLabs) act as interfaces between the computational science communities and the HPSC resources at the Jülich Supercomputing Centre (JSC), operating one of the most powerful HPSC infrastructures in Europe. The SimLab Terrestrial Systems (SimLab TerrSys) is part of the JSC and the centre of excellence for High-Performance Scientific Computing in Terrestrial Systems (HPSC TerrSys), which was founded as an initiative of Geoverbund ABC/J in 2011. SimLab TerrSys conducts HPSC in geosciences and contributes to an improved understanding and prediction of geophysical, hydrological, meteorological and bio-geochemical processes in terrestrial systems. The focus is on the development and application of highly efficient, parallel modelling tools, especially fully coupled terrestrial simulation platforms from groundwater into the atmosphere. Moreover, SimLab TerrSys provides the geoscientists of the ABC/J region with scientific and technical support for their research activities by means of its supercomputers. http://hpsc-terrsys.de

We are looking to recruit a

Experienced Postdoc for the Coordination of the Simulation Laboratory Terrestrial Systems

Your Job:

  • Coordination of and active participation in HPSC service and support, as well as research and development activities of SimLab TerrSys
  • Close collaboration with HPSC TerrSys, JSC, and other SimLabs in the Computational Science Division and with JSC's cross-sectional groups (e.g., Performance Analysis, Application Optimization, Visualization)
  • Facilitation of fluent communication between all HPSC activities and the research scientists involved in Geoverbund ABC/J; research in overlapping areas between HPSC and geosciences
  • Participation in ongoing work, e.g. near real-time, fully coupled, ultrahigh-resolution forecasts, climate change simulations up to continental scales, as well as research on water cycle processes, land-atmosphere coupling, and groundwater hydrodynamics, as part of national and international projects and collaborations
  • Setup, development, and extension of new and existing parallel scientific software tools, parameterizations, or processing chains, with a focus on two-way coupled high-resolution subsurface–land surface–atmospheric simulation platforms such as Terrestrial Systems Modelling Platform (www.terrsysmp.org); HPSC aspects include efficient, hybrid parallelizations, utilization of accelerators, scientific visualization, and future exascale applications
  • Contribution to solutions for the big data challenges in geosciences, as well as the application and advancement of data assimilation techniques and data synthesis approaches; handling of a broad range of in situ and remotely-sensed measurements
  • Testing and use of the latest (JSC) HPSC systems (including heterogeneous architectures) for a wide range of usage scenarios and numerical experiments, including porting, profiling, and tuning; development of standard implementations, optimum use cases; code maintenance; developments towards petascale applications

Your Profile:

  • A university degree in a geoscience discipline, computer science, physics, civil engineering, applied mathematics, or related fields with a doctoral degree and at least two years of experience as a postdoc, as well as relevant scientific publications
  • Knowledge in the areas of meteorology, hydrology, numerical methods and especially the modelling of fluxes at compartmental interfaces is desirable
  • Experience in HPSC and modelling, preferably in geosciences (e.g., atmosphere, hydrology, ocean, vegetation, or biogeochemical cycles)
  • Proven experience in simulation code porting, profiling, and tuning; affinity to various aspects of High-Performance Computing
  • Proven (parallel) programming skills with FORTRAN, and/or C/C++, and ideally also Python under Linux; experience in professional software development
  • Ability to work both independently and collaboratively in an international, interdisciplinary team across institutes; very good communication and organizational skills; experience in supervision of research projects and technical staff
  • Experience in scientific project acquisition and coordination
  • Very good command of the English language

Our Offer:

  • Main place of employment will be JSC on the campus of Forschungszentrum Jülich with a vibrant, international, and interdisciplinary working environment that is ideally situated between the cities of Cologne, Düsseldorf, and Aachen
  • Participation in national and international conferences and workshops
  • Opportunities for scientific and technical training conducted by international experts
  • A comprehensive further training programme, including English language courses
  • Flexible working hours and various opportunities to reconcile work and family life
  • Limited for 2 years with possible longer-term prospects
  • Full-time position with the option of slightly reduced working hours
  • Salary and social benefits in conformity with the provisions of the Collective Agreement for the Civil Service (TVöD).


Forschungszentrum Jülich aims to employ more women in this area and therefore particulary welcomes applications from women.

We also welcome applications from disabled persons.

We look forward to receiving your application, preferably online via our online recruitment system on our career site until 01.03.2018, quoting the above-mentioned reference number.

If you have any questions regarding technical issues, please contact the scientific director of HPSC TerrSys, Prof. Stefan Kollet (s.kollet@fz-juelich.de). For queries concerning the general application process, please contact the coordinator of Geoverbund ABC/J, Dr. Daniel Felten (d.felten@fz-juelich.de).

Contact Human Resource Development and Recruiting
Anja Schurf
Tel.:+49 2461 61 9700


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