Independent consultant · Freiburg, Germany

Feng Jia, PhDConsulting & implementation for simulation and digital analytics

I help research groups, engineering teams and online businesses turn complex problems into reliable numbers: from electromagnetic field simulation and optimisation to clean tracking and honest advertising analytics.

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Services

Two focus areas, one approach: a clear problem statement, transparent methods and results you can verify.

Scientific Computing & EM Simulation

Numerical modelling and optimisation for electromagnetic and multiphysics problems, built on more than 20 years of finite-element and optimisation experience.

Coil design: MRI gradient and shim coil layouts
Electromagnetic field and safety modelling, including peripheral nerve stimulation (PNS)
Constrained numerical optimisation (boundary element, stream function formulation, topology optimisation)
FEM models in COMSOL Multiphysics (also scripted via LiveLink for MATLAB), Sim4Life for body models and exposure
Custom simulation code and automation in MATLAB, Python, C and Fortran

COMSOL
Sim4Life
MATLAB
Python
C / Fortran
FEM / BEM

Digital Analytics

Measurement you can trust, and analysis that tells you which campaigns actually work.

Google Analytics 4 setup, configuration and reporting
Google Tag Manager: containers, tags, triggers and data layer
Conversion and event tracking for Google Ads and Meta Ads (Meta Pixel and Conversions API)
Performance analysis of Google Ads and Facebook / Instagram campaigns
UTM conventions and attribution, so channels can be compared fairly

GA4
Google Tag Manager
Google Ads
Meta Ads
UTM / attribution

How a digital analytics project runs

AuditWhat is tracked today, and what is missing or wrong?
Tracking planGoals, events and parameters agreed before anything is built.
ImplementationGA4 and Tag Manager configured, ad platforms connected.
ValidationEvery event tested; numbers compared against the ad platforms.
ReportingCampaign analysis with clear conclusions and next steps.

Selected simulation work

Projects from my research at University Medical Center Freiburg, each carried from concept through mathematical formulation, implementation and experimental validation to publication.

Non-linear gradient coil for breast diffusion MRI

Insert coil with a local gradient above 1 T/m, more than ten times that of a clinical whole-body scanner. Measured field maps matched the simulation.

J Magn Reson 2021

Shim coil array matched to brain anatomy

Array designed from in-vivo field maps of 18 subjects, with SVD-based element reduction to cut the channel count.

Magn Reson Med 2020

PNS safety for interventionalists

First assessment of peripheral nerve stimulation exposure of staff working inside the scanner bore during image-guided procedures.

MAGMA 2025

Also: shielded matrix gradient coil elements for non-linear spatial encoding, gradient coils for a low-cost teaching scanner, and topology optimisation of small-scale gradient coils. Full publication list on Google Scholar.

About

Numerical mathematician by training, MRI hardware physicist by practice, and now independent. I enjoy problems where the physics is hard and the answer has to be right.

14 yearsUniversity Medical Center Freiburg, 2012–2026

23peer-reviewed articles, 5 as first author

Patentsincluding one licensed by Siemens Healthineers

Since 2001finite-element methods and numerical simulation

Experience

2012–2026Research associate, Medical Physics, Dept. of Radiology, University Medical Center Freiburg
2010–2012Research associate, University of Freiburg
2007–2010Doctoral candidate, Medical Physics, University of Freiburg
2005–2006Research assistant, National University of Singapore
2001–2005Project manager and software developer, Beijing FEGEN Software (FEPG finite-element program generator)

Education

2007–2010Dr. rer. nat., Numerical Simulation, University of Freiburg
2006–2007Graduate studies, National University of Singapore
2001M.Sc. Computational Mathematics, Chinese Academy of Sciences
1998B.Sc. Computational Mathematics, Peking University

Collaborations

Siemens Healthineers, DKFZ Heidelberg, MGH / MIT Boston, UMC Utrecht, MPI Tübingen, KIT.

Languages

English (fluent), Chinese (native), German (B1, improving).

From my employment reference

„…an extraordinarily valuable employee…“ and work carried out „to our complete satisfaction“.
Employment reference, University Medical Center Freiburg, 2026 (translated from German)

Contact

Tell me briefly about your project or measurement problem. I will get back to you as soon as possible.

feng.jia [at] youdestudio.com

Freiburg im Breisgau, Germany · Working in English, Chinese and German