Consultant – Subsurface flow and transport modeller

We are looking to appoint a Consultant to work as a Subsurface Flow and Transport Modeller in our Barcelona office. You will be joining a multicultural group of modellers working in the characterisation of flow and reactive transport processes in porous and fractured media. You also will interact with experts and modellers of other groups and disciplines. As a Consultant, you will be working in a broad range of projects related to numerical modelling in the context of environmental applications. The successful candidate will have the opportunity to grow professionally through collaboration with highly specialised colleagues and clients.

The main activities of this position are:

  • Develop, validate and deploy numerical models of flow and reactive transport in porous media and sparsely fractured rocks applied to the nuclear waste storage, mining, water resources, oil and gas and energy.
  • Applying advanced Multiphysics techniques for solving complex engineering problems.
  • Processes understanding; interpreting modelling results.
  • Customising numerical codes.
  • Pre-process, visualise and post-process complex data-sets.
  • Assist and advice the clients in interpreting the results.
  • Summarise the work in technical reports and/or academic journals.

We offer a full position, 40h per week, with a competitive salary according to the merits of the candidate.


  • You have a MSc in Physics, Civil Engineering, Chemical Engineering, Applied Mathematics or similar. A PhD in some of the above fields is a plus.
  • Background in Hydrogeology, Hydrogeochemistry or geosciences.
  • 2 years of experience in a similar position.
  • You have experience in modeling of flow and transport phenomena related to hydrogeological processes and skills as advanced user in reactive transport simulation codes (e.g., TOUGH, TOUGHREACT, CodeBright, RETRASO, PHREEQC, PFLOTRAN, CrunchFlow). Experience in Multiphysics (e.g. CFD modelling) and programming skills in some of the above codes is a plus.
  • You have good programming skills in Python. Other programming languages, such as FORTRAN and MATLAB, and numerical simulation codes such as COMSOL are a plus. Experience in high performance computing is also a plus.
  • You have excellent verbal and written communication skills.
  • You are fluent in English.

How to apply

Send your cover letter and CV to:

Orlando Silva ( and, Paolo Trinchero (

With a Cc to:Human Resources Head, Natalia Luengo,


The data provided by the applicant will be used exclusively for the purpose of the selection process. The data will be kept by Amphos 21 CONSULTING SL for the duration of the selection process. Once this process is completed, all the personal information of the unselected applicants will be deleted.

By sending your CV you will be accepting our data protection policy.

You can exercise your rights of access, rectification, deletion, limitation, portability and opposition, by writing AMPHOS 21 CONSULTING, SL with address at Calle Venezuela, 103 – 2º 1ª, 08019 de Barcelona, Tel. +34 935830500, e-mail You can also exercise the protection of your rights before the Spanish Agency for Data Protection.