Junior Numerical Modeller

Who we are

Amphos21 is a scientific and strategic environmental consulting company with
more than 30 years of experience delivering projects worldwide. We are more
than 400 highly skilled professionals with an innovative mindset, integrated into
the RSK Group, a global leader in the delivery of sustainable solutions.

Our mission is to minimize the environmental impacts of industrial and economic
activities necessary for the advancement of society.

Our approach is to propose innovative, efficient, integrated and transversal
solutions by applying a quantitative approach to any solution.

What we offer

Amphos21, within his Water Resources and Environment department, has a Junior
Numerical Modeller open position at his office in Barcelona, Spain. The candidate
will join a multicultural team. We offer a fantastic workplace environment with
hybrid office and teleworking conditions and:

  • 40h per week.
  • An exciting and innovative project.
  • Competitive salary according to the merits of the candidate.
  • Continuous training.
  • A professional development plan with career opportunities within the group.
  • Life insurance.

What you’ll be doing

  • Develop and implement numerical models based on partial differential
    equations to quantify groundwater flow and radionuclide transport from deep
    underground facilities to the biosphere.
  • Effectively communicate the results of projects with clients (both external and
    within the wider RSK group) and Amphos 21 colleagues to build strong working
    relationships with the aim of meeting client expectations.
  • Managing the technical aspects of projects to meet both commercial and
    technical requirements and working with the project team and project lead to
    deliver innovative solutions

What we’re looking for:

  • A degree and MSc in Civil or Geological Engineering, Industrial or Chemical
    Engineering, Physics, Geology or related are essential.
  • Knowledge about physical (heat and contaminant transport, fluid flow,
    twophase flow, or solid mechanics) and/or chemical processes in porous
    media.
  • Knowledge in modelling with commercial or open-source Finite Element,
    Finite Differences of Finite Volume codes, e.g. Comsol Multiphysics,
    PFLOTRAN, FEFLOW or similar.
  • Excellent verbal and written communication skills in English, including report
    writing. Spanish, Catalan and/or French will be highly valued.
  • Able to work independently and as part of a high performance team.
  • Good knowledge of programming languages, such as Fortran, Python or C++
    will be highly valued.

How to apply

To apply for this opportunity, please send your resume and motivation to

lidia.oliva@amphos21.com. Please indicate in the subject of the email the position
and reference (WRE_2025) that you are interested in.

Amphos21 guarantees that no profile will be discarded due to race, age, religion,
sexual orientation or any other aspect that could be considered exclusive. Amphos21
ensures diversity and inclusion in the selection processes.